Suzuki 9 9 to 20 HP Conversion Project - So Easy!

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I was excited to convert my Suzuki 4 Stroke Outboard motor from a 9.9 HP to a 20 HP. They are basically the same motor with 2 different parts. So, I ordered them and went to work getting them installed. Couple tricky parts, but it went smoothly for the most part and I gained about 9 mph!
Parts List:
Flame Arrester - 13710-89L00 Approx $10
Silencer Seal - 13832-89L00 Approx $8
ECM - 33930-89L20 Approx $440
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My Action Cam - amzn.to/3MHckSh
My Other Action Cam - amzn.to/3tTcwVR
Chest Mount and Hat Mount - amzn.to/3i1ai1l
My Shoulder Mount - amzn.to/37tc1dX
My Portable Charger - amzn.to/3w0Y5BP
My Boat Mount Stick/Charger - amzn.to/3CGqTBc
I am a participant in the Amazon Services LLC Associates Advertising Program designed to provide a means for associates to earn fees by linking to Amazon.com and affiliate sites. This has no affect on the pricing of the items.
Music: Across The Pier by Vyen

Опубликовано:

29 сен 2024

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Комментарии : 567

@UncleKennysPlace 4 месяца назад

We used to put the 9.9 cover decals on 15 hp motors, forty-something years ago.

@Dark30Outdoors 4 месяца назад

That’s another way to go! 👍

@FrankRommerts-dr4yp 4 месяца назад

We used to do that with a 6hp Mercury cover on a 15hp Mercury, just to fool the police, my little Zodiac Cadet 310 used to go over 50kph with that 15hp Mercury, the whole boat and motor combination weighed like 90kg with a full 24 liter tank.

@golfish8589 4 месяца назад

@@Dark30Outdoors Try putting the original control module in and test the speed and acceleration just by removing the air restrictor. ? ? ? Will it run a little bit better or a little worse or alot worse?.

@BobWiersema 4 месяца назад

Manufactures used to put 9.9 carbs on the 15's to meet the 9.9 rule when it first came out. I have a Gamefisher like that.

@Dark30Outdoors 4 месяца назад

@@BobWiersema Yep, and guys would do a carb conversion on them.

@john6268 Год назад

Looking to do this to a Mercury 9.9 EFI. The parts seems to be the same between the 9.9/15/20 EFIs, except for the ECUs and restrictors on the 9.9/15. Hope it'll be this easy for me.

@Dark30Outdoors Год назад

I think it should be. 👍

@john6268 Год назад

@@Dark30Outdoors Yep, it was very similar, and worked. The ECU was a little harder as I had to remove the lower cowling a bit since the electric starter take up some room above the ECU so I couldn't pull it out without some more space.

@Dark30Outdoors Год назад

@@john6268 That's awesome!

@tagoutcrew 2 года назад

Up next a super charger and a Bigfoot kit!!

@Dark30Outdoors 2 года назад

Hahaha! Sure, why not!

@pokyacongcodeipokya192 2 года назад

I want to ask about the 2 stroke Suzuki ??? what items are you buying ??? can you tell me ???

@Dark30Outdoors 2 года назад

I don't have any experience with the 2 stroke Suzuki outboards.

@Slaktrax 4 месяца назад

That's a serious restrictor plate, heck it can hardly breathe.

@Dark30Outdoors 4 месяца назад

Haha! It certainly is!!

@jeffconley819 3 месяца назад

@@Dark30Outdoorsalum creek north of Columbus ??

@Dark30Outdoors 3 месяца назад

@@jeffconley819 yes!

@stevenchapman5810 2 месяца назад

Right that's almost worse than a full choked carb..

@tomkeltescheverythingoutdo2379 2 года назад

Nothing more gratifying than doing something yourself to save money.

@Dark30Outdoors 2 года назад

You got that right Tom!!

@kostaswolf1978 4 дня назад

Strange ,getting 20hp from a smaller displacement😮😮😮

@danmcg9981 Год назад

A prop change would increase speed. The 20 horse has a different prop. The ECM controls max rpm.

@Dark30Outdoors Год назад

Yes, mine was changed.

@Natter20002 2 месяца назад

To what? Did it help? Going to do this asap

@YourNextCast 2 года назад

Nice demonstration and glad you took it out on the water too. Didn't even know you could do that. Appreciate you sharing the knowledge.

@Dark30Outdoors 2 года назад

Yeah, it was easier than I thought it would be. Thanks for watching!!

@1224Peterson 5 месяцев назад

There is no need for a new ECU, I did this same conversion and by the advice of a Suzuki tech he said the stock ECU would adjust to the added airflow and it did, runs great. Only parts you need are the flame arrestor on seal

@Dark30Outdoors 5 месяцев назад

Glad to know that is working for you!

@kitkat101 5 месяцев назад

@1224Peterson Still no problems? I’m thinking about doing this but the ECU is really expensive.

@Dark30Outdoors 5 месяцев назад

@@kitkat101 Running like a dream!

@1224Peterson 5 месяцев назад

@@kitkat101 No issues, I've been checking the spark plugs and they look good, no signs of running too rich or too lean so the ECU is doing it's job. You will need a new prop tho, I got an 11 pitch, the stock prop on these are horrible anyways so budget for a prop as well

@Muscleupsanddangles 3 месяца назад

No ECU swap abd you won't get higher revs. 20hp revs much higher

@benmerit118 11 дней назад

Hey, I went to order the ECM and the seller claimed this does not work on their page under the on as a warranting can anyone confirm they also had no issues? Also is there any negative other than the lower RPM limit running the 9.9 ECM unrestricted for the hole shot?

@Dark30Outdoors 11 дней назад

If you are asking if it will void the motor warranty then yes that is correct. However, these are very reliable motors, and have an outstanding record in regard to reliability. Mine is running like a dream still today!!

@marks6072 Год назад

with the new found torque, you can install a 12 or 13 pitch prop and get significantly more top speed out of that motor now.. Probably closer to 28-29 mph

@Dark30Outdoors Год назад

Awesome! Thanks for the tip!

@lakkchina Месяц назад

Why not Suzuki make different Map configuration in the ECU to change power delivery?

@TheReefRobber 2 года назад

That’s awesome! Never knew you could do that. Looks pretty easy.

@Dark30Outdoors 2 года назад

Yeah, it wasn't hard at all!

@marklapierre5629 4 месяца назад

You need to swap the prop to a higher pitch to absorb the additional power. That will give you a higher top speed.

@Dark30Outdoors 4 месяца назад

Yes, it was previously changed! 👍

@renegademind1833 Год назад

Question. Does the Suzuki 9.9 hp 'cowling' fit on a 20 HP (vise/versa) It be interesting to know. Never mind.. I found out it does.

@andrewgoodfellow2039 Месяц назад

Hi there, I have since been told the ecu does restrict the rev limit. The 9.9 revs to 5800 the 15 to 6000 and the 20 to 6200 that's how some of restriction works

@Dark30Outdoors Месяц назад

That makes sense!

@ASMRLIVEFEED 7 дней назад

Get a 20hp ecu

@ASMRLIVEFEED 7 дней назад

Hey will this work on the new gray susuki outboard 9.9 motor?

@Dark30Outdoors 6 дней назад

@@ASMRLIVEFEED it should! 👍

@donc2334 Год назад

My question to you and anyone in the group who completed the upgrade to either 15 or 20hp is whether a noticable increase in power was noted at low to mid RPMs, or only at the high end because the WOT max was increased? For example would I expect to have greater speed (and therefore greater fuel consumption) at say 3500RPM (my expected typical cruising speed) after converting to 15 or 20hp? Thanks!

@Dark30Outdoors Год назад

My boat sure gets up on plane a lot quicker than it did before! I don't think the increased fuel consumption is that noticeable really.

@williamsaldanah3554 4 месяца назад

Little soapy water as a lubricant helps sliding things with rubber gaskets or mounting surfaces in place a lot easier

@Dark30Outdoors 4 месяца назад

Thanks! I appreciate that tip!

@8180634 4 месяца назад

Windex is great for that, it dries nicely.

@SynicalBeats 4 месяца назад

Really don't want to get water near a ECM or the connector. Silicone lube spray would be better.

@barrykruyssen 3 месяца назад

@@SynicalBeats not really as silicone spray stays slippery, where as windex and/or soapy water dry. Thus the rubber still offers support via friction. In most cases like this I use Saliva (yes I spit on it 🙂)

@Subvet684 4 месяца назад

I upgraded my 15 to 20, if I knew what I know now, I would have just bought the 9.9 and upgraded it. Others have mentioned changing the prop, but when I looked it up, the standard prop was the same for both. Haven’t had it out on the water yet, but it runs fine on the Mickey Mouse hose fitting

@Dark30Outdoors 4 месяца назад

Awesome!! Every little bit helps! 👍

@moparshark 4 месяца назад

Exact same thing on the 40/50/60 Zukes!

@Dark30Outdoors 4 месяца назад

Good to know!! 👍

@allanweseman5433 4 месяца назад

I just bought a 2024 Suzuki DF50 to replace my old 1999 DF40. Nice to know I can raise it to 60 later on if I have to. Thanks for the hot tip

@baitsanddebates4743 2 года назад

The Reef Robber is on here running all your videos for you. Hope you get your hours soon!

@williamweirjr9749 7 дней назад

Will it make it use more gas?

@Dark30Outdoors 7 дней назад

To some degree, yes. However, it is not really noticeable.

@JohnVanLandingham-e7v Месяц назад

I turned a 20 Evenrude into a 35

@johngoodman9380 4 месяца назад

Larger prop will increase top speed and still give good hole shot. Try stainless cupped prop, big difference.

@Dark30Outdoors 4 месяца назад

I might some day, but for now I really like what I got.

@HuntingFarmerOfficial 2 года назад

Awesome upgrade! I thought you might be boring the cylinders 30 over and putting a turbo on it. 😂

@Dark30Outdoors 2 года назад

Hahaha! Now, I'm brainstorming turbo ideas! lol

@Frankinsteinguitar 4 месяца назад

Try a different prop?

@Dark30Outdoors 4 месяца назад

Yes, the prop had previously been charged!

@gordonshumway4763 9 месяцев назад

In fact, you can not buy anything at all, take out the metal flap from the rubber band, and the control unit ebu flash the firmware from 20hp motor, firmware is available on the network, I can share. It can be flashed with any programmer, for example piasini v4.3.

@Dark30Outdoors 9 месяцев назад

Good information, but that sounds quite technical.

@gordonshumway4763 9 месяцев назад

@@Dark30Outdoors Here is a description of how to flash and the firmware file from a 20 motor with manual starter. drive.google.com/drive/folders/1hAlZkspz57omBZYWyYuO9dZ9kTFsA9RR

@gordonshumway4763 9 месяцев назад

@@Dark30Outdoors Bro, I can also give you a suzuki sds diagnostic program to diagnose the motor. All you need is a Chinese k-line adapter for 8-10$ and PC win xp-10.

@andrewgoodfellow2039 3 месяца назад

If I was doing this I would check the ignition advance between the two models and the injector size. If there the same spec I would say its the washer between the airbox and the throttle body, that is restricting down to the smaller hp

@amasfriend4912 2 года назад

The Reef Robber here on another channel getting you watch hours!

@Dark30Outdoors 2 года назад

You rock!

@robertmccaleb3109 2 года назад

Man! Your video was awesome thank you. I’m soon to get the Suzuki 9.9 2022 4 stroke short shaft. Thank you for sharing that. If I ever have the need to up it to 15hp or 20. I now know how to do it. So amazing again thank you. Your video was super informative. Great job.

@Dark30Outdoors 2 года назад

Thank you! I appreciate the kind words!!

@tonymclean1707 2 года назад

Hi Robert, I just got my 2022 9.9B today, cannot find anyone selling the 2022 ECU and parts. Did you just go to the dealer? Is yours a 00995F-24xxxx?

@robertmccaleb3109 2 года назад

@@tonymclean1707 i went ahead and got the suzuki 6hp

@MrErik038 4 месяца назад

Nice of you to share and make the video, thanks!

@mammukchannel 2 года назад

hello my friend, greetings and greetings. thank you for sharing we really like the video ♥️♥️♥️♥️🥰🥰🥰🌹🌹🌹👍👍👍

@SteveFromWyoming 2 года назад

Unbelievable you can convert to that much more horsepower with such few parts. Good job

@Dark30Outdoors 2 года назад

Yeah, pretty slick huh!!

@gromitNOR83 4 месяца назад

9.9hp engines are tailor made for specific markets and regulatory rules. like in the EU the maximum engines kids under 16 can use is a 9.9hp engine. Easier to downgrade an existing engine design to meet the hp requirement than making a whole new engine.

@Rvndrkk 2 месяца назад

@@gromitNOR83def not the whole EU, for example in Finland, a 15 year old can drive boats under 5.5 meters with 20hp motors.

@positivepikachu3764 2 года назад

Showing some love from Canada 🇨🇦 ❤

@Dark30Outdoors 2 года назад

Thanks!!

@didi0100 4 месяца назад

Now you need to change the prop . Engine will be constantly over reving as is .

@Dark30Outdoors 4 месяца назад

It was mentioned at one point that the prop had previously been changed. I never hit the rec limiter!

@gailmrutland6508 4 месяца назад

*LOL, re prop and add a Dol-Fin and you will see 30 MPH!!!!!*

@Dark30Outdoors 4 месяца назад

Right on! 👍

@keen1957 4 месяца назад

I remember yrs ago ( carburetor days) you could buy a merc 115 and re jet it to a 150 by using the 150 jets, under $25.

@Dark30Outdoors 4 месяца назад

Now, that's a heck of a value!!

@erikteubler1214 4 месяца назад

I guess you refer to the straight 6 Tower of Power. What a beautiful engine was that! Good memories from a long time ago.

@richardpelzer4049 8 дней назад

I heard once, some lakes only allow 9.5 hp motors lol

@bucktalesoutdoors7566 2 года назад

That’s awesome that you can upgrade by 10 HP that easily and for less than $500. Sweet ! Wonder if I can upgrade my Johnson 15 hp to a 30 as easily. Something to look into. 13 mph up to 21, yeah that’s a great upgrade and getting on plane that much quicker. Good job Kyle !

@Dark30Outdoors 2 года назад

If your Johnson is a 4 stroke that is fuel injected then it might be possible. The only other model that I have heard of people doing it on is the Yamaha.

@bucktalesoutdoors7566 2 года назад

@@Dark30Outdoors yep she’s a fuel injected 4 stroke but she’s also a bit older 2013. She gives me pretty much all I need.

@igotmesothelioma 2 года назад

@@bucktalesoutdoors7566 Johnson never made a 15hp fuel injection 4 stroke.

@bucktalesoutdoors7566 2 года назад

@@igotmesothelioma you’re right my 15 HP 4 stroke Johnson is carbureted. Oh well ! It goes ok.

@lukesmith32 Год назад

@@bucktalesoutdoors7566might be able to change the carb to a larger hp one, change fuel pump, and some other things

@martywilhelm9700 Год назад

Where did you get your parts.

@Dark30Outdoors Год назад

Boats.net

@martywilhelm9700 Год назад

Thanks

@scottmclaughlin3083 4 месяца назад

20 hp has to have a different prop to keep the rpms in the correct range

@Dark30Outdoors 4 месяца назад

Correct, it was changed previously!

@MarkJLarsonOutdoors 2 года назад

That was very cool brother! I can't believe it was that simple! In your opinion is it better to do that or bye a 20 hp from the start and what would be the price difference? Thanks for sharing my friend!

@Dark30Outdoors 2 года назад

I think it was maybe $100 cheaper converting it, but technically I can run my OB motor with 2 different configurations! Plus, here in Ohio we have lakes that are 10 HP or less. Well my motor is shown as a 9.9!

@MarkJLarsonOutdoors 2 года назад

@@Dark30Outdoors Great idea buddy!!

@username-mc7jw 2 года назад

Strangely enough... the 15 HP is actually selling for less than the 9.9 online now. (08/20200)

@Dark30Outdoors 2 года назад

That's interesting!

@nutrianinja9325 2 года назад

Gotcha going on all four of my channels! You should be getting your watch hours very soon! -The Reef Robber

@Dark30Outdoors 2 года назад

Awesome! Thanks buddy! Each day I check it, and they have a funny way of doing math, but I just keep going!! lol

@nutrianinja9325 2 года назад

@@Dark30Outdoors I know what you mean! You’ll get there

@georgecreel8542 8 дней назад

Please post this send to me friend sure

@barry8458 4 месяца назад

Great mod 👍🏼…simple unlike the old 2 stroke carb and tuned exhaust exchange…need my 9.9 Yamaha 4stroke done too but probly won’t be same mods…

@Dark30Outdoors 4 месяца назад

Quite simple really. Not sure if it’s the same for Yamaha, but it would be worth looking into! 👍

@thewanderingbox8253 5 месяцев назад

how is it a flame arrester...connected to the airbox... it's obviously just a gauze to enable almost full flow air use a bit od wd40 on the rubber to allow it to slide back in better the ecm it just allowing more fuel in there...so basically you are making it work harder...might not last as long.....would you prefer to drive a hinda civic type R or a Dodge Charger....gimme the dodge! 🤣🤔

@Dark30Outdoors 4 месяца назад

Thanks! Appreciate it!!

@glenndavis479 4 месяца назад

Does anybody know if I can upgrade my 5hp Suzuki 4 stroke to something a little bigger in the same manor?? I'm seriously lacking in knowledge on all things outboard related. Thanks.

@Dark30Outdoors 4 месяца назад

I’m not sure if they make anything with more power but the same size as the 5 hp.

@jasonsweet1868 4 месяца назад

I dont mean to be picky but shouldn't you increase prop size as well?

@Dark30Outdoors 4 месяца назад

The prop had previously been changed to a 10.

@ia6980 4 месяца назад

So latest 9.9 efi tohatsu outboard is at 84.9lb so by changing parts to 20hp it still remains at 84.9 lb ...which is nice because at stock 20hp tohatsu, weight of engine is at 104lb...so ur saving 15lb of weight. Question is, 15lb of weight, is it worth all the hassle? Or is it just better to buy 20hp outboard?......

@Dark30Outdoors 4 месяца назад

I’m not familiar with the Tohatsu brand. On the Suzuki, they build their 9.9 and 20 exactly the same so both weigh the exact same.

@Ds-xi2sq Год назад

Wonder if you had a Suzuki 6 hp with a carb...Is there any hop ups for that? cost? performance?

@Dark30Outdoors Год назад

I'm not sure. I know the 9.9 and the 20 HP that Suzuki makes use the exact same housing, and really everything is the same except for those 3 simple parts!

@BertdeJ Месяц назад

Yet you are not there, because what have you forgotten? Your engine will run so many revolutions and is more powerful, but you won't really go much faster because you have to adjust the propeller. This can be done with a propeller whose pitch is larger and you can also do something with the diameter of the propeller and you will see that he goes much faster.

@Dark30Outdoors Месяц назад

@@BertdeJ The prop was changed after I got the motor. I just didn’t cover it here in this video. It’s a 10 pitch 3 blade.

@TheReefRobber 2 года назад

Got you running.....

@Dark30Outdoors 2 года назад

Awesome! Thank you!!

@mikeadamski6061 2 года назад

How long is your boat? I have a 16ft sea-nymph I'm debating on doing this to. I'm only getting 13mph with a 9.9 carbed correctly to a 15.

@Dark30Outdoors 2 года назад

Mine is a 14.5':, and I'm getting 23 mph with a 10 pitch prop (keeps my RPM's well below red line). My buddy has the standard 9 pitch prop and the same motor on a 16' Sea Nymph and I'm sure he's over 20 and very happy with it! The conversion is super easy to do!!

@valeriepottier120 4 месяца назад

What the ….. That 9.9 restrictor is almost completely closed !!!!! Not even a new carb?

@Dark30Outdoors 4 месяца назад

Doesn’t have a carb. It’s fuel injected.

@joedirt9600 Год назад

I have a 2021 Suzuki 9.9 and I am waiting for my warranty to expire, then I am doing this to mine. Parts are already on the shelf in the garage.

@Dark30Outdoors Год назад

Sounds good!!

@gordonshumway4763 9 месяцев назад

You don't have to wait, why should you have to wait? If you have a new control box with the firmware from the 20th motor, you can safely change it right now, no one will know about it. If the motor breaks, just put everything back in, you can wear gloves so you don't leave fingerprints.

@CrustyCranks 2 года назад

Now you can go on 10 hp restricted lakes and no one will know!

@Dark30Outdoors 2 года назад

Bingo!! That's the deal!

@benkanobe7500 Год назад

I could only find the links to camera gear and such and nothing for the Suzuki

@Dark30Outdoors Год назад

Those links are Amazon links and the parts aren't on Amazon. The part numbers are listed in the description. You'd have to order through a Suzuki parts dealer.

@benkanobe7500 Год назад

@@Dark30Outdoors Sorry. I confuse easily.

@williamstreet4304 4 месяца назад

The reason this works for Suzuki is because the 9.9 and the 20 are the same motor with different intake controls. They both weigh 108 pounds in the long shaft version. But other manufacturers have different approaches. Example Tohatsu offers a 9.9 that weighs the same as their 20. They also offer a 9.8 that is significantly lighter. The 9.8 weighs 80 pounds. If you are frequently using a portable on a dinghy from a larger vessel, the difference in lifting 80 pounds or 108 pounds is significant. It magnifies when mounting to a dinghy in a rolling anchorage. I only post this to highlight the differences between the 2 brands. I have a Tohatsu 4hp on a small boat and a Yammy 175 on a slightly bigger boat. I don't own a Suzy.

@Dark30Outdoors 4 месяца назад

Very true!! 👍

@williamstreet4304 4 месяца назад

@@Dark30Outdoors Thanks for the thumbs up. My comment was nothing against your post. The upgrade is awesome and probably less expensive than the 20. I was just thinking of different applications which have different priorities. As a young man in his 70's, weight is becoming very important.

@Dark30Outdoors 4 месяца назад

@@williamstreet4304 I can certainly appreciate that!

@savyor1839 4 месяца назад

This is true - most, if not all 9.9s are restricted versions of the 15 or 20hp. The manufacturers do this across their lineups - I think your yammy is the same engine as the 200, just without vvt PS: 70 ain’t nothing young lad!

@Faitter Месяц назад

The Tohatsu 9.8 is smaller cc than the 9.9. The 9.9hp Tohatsu is same engine with the 15hp and 20hp versions, they also have different restrictors and ECU's, so from the 9.9hp you can get 20hp out as well.

@joeinmi8671 4 месяца назад

My old 9.9 evinrude manages 22/23mph on a 12' boat with only me. Weighs 75lbs.

@Dark30Outdoors 4 месяца назад

That’s awesome! 👍

@joewoodchuck3824 4 месяца назад

So customers buy what is basically the same engine at a premium price for higher horsepower with basically the same cost as each other to the manufacturer. Sneaky.

@Dark30Outdoors 4 месяца назад

Yeah, I guess it’s a little sneaky but it kind of makes sense.

@gwrace 24 дня назад

Does this upgrade still work on the 24 model year Suzuki 9.9 EFI with manual start and trim?

@BaconGod. 18 дней назад

Prolly need to enlarge the fuel injectors and flash the ECU with a new compression rate and a microsupercharger

@davegeorge7094 4 месяца назад

Flame arrester on the intake of carb/fuel inj. system. I'd call it restricter plate.

@Dark30Outdoors 4 месяца назад

Yeah, that's just what they call it.

@Old_Sailor85 4 месяца назад

All marine gasoline engines should have a flame arrestor on the intake. Especially an inboard or I/O. You have never seen a backfire (and it's not a noise from the exhaust)?

@glennjames7107 4 месяца назад

The airbox is the actual flame arrestor on outboards.

@Old_Sailor85 4 месяца назад

@@glennjames7107 Those engineers, what they won't think of.

@DikaiooOne Год назад

Does anyone know if you can upgrade the 2023 9.9 to 20hp? Is everything the same or have they changed anything?

@Dark30Outdoors Год назад

I don't see why not unless they changed the housing or added something and I doubt that to be the case.

@NordYakovleff 4 месяца назад

Check to see what sparkplugs go on the 20 HP. Might be best to run with them.

@Dark30Outdoors 4 месяца назад

I believe they are the exact same. 👍

@dennisyoung4631 4 месяца назад

The restrictor allows running only at very low speeds…. Pumping losses go way up once you go much above Idle speed.

@gerry7457 2 года назад

I'm from the Coboconk area. Where did you get the parts? Thanking you in advance

@Dark30Outdoors 2 года назад

I bought mine from Boats.net

@gerry7457 2 года назад

@@Dark30Outdoors Just ordered it. Thank you! Now I'm going to sell my 15hp ECM

@billybobjones4317 4 месяца назад

As others have probably mentioned, you can't use a 9.9hp prop on a 20HP engine, well you can but then it was pointless doing the upgrade lol, be like putting a Supercharger onto your car and keeping the old Cross Ply Tyres, sure you get a lot more power to the wheels, trouble is they will just spin and not get you going any faster :) The old prop will give you the same top speed as you aren't getting any more revs, unless the new ECM also increases the RPMs, you will need to upgrade the prop to get the full use of those extra 10.1hp as you doubled the HP but didn't change the main part that makes the Boat move :). If the ECM did increase the RPM range, you will just get cavitation from the old prop and not a lot of extra thrust or top speed. Not sure why that wasn't included in the Video you saw that showed you how to do this upgrade ?

@Dark30Outdoors 4 месяца назад

I had previously changed my prop in anticipation of this upgrade! 👍

@billybobjones4317 4 месяца назад

@@Dark30Outdoors I should have guessed as you did get a much better top speed :), considering there are no actual engine modifications, this is a great upgrade, to be able to double your out put with no extra stress on the engine is amazing.

@solarfunction1847 4 месяца назад

Did you buy the parts direct from the Suzuki dealership in the US or did you get them from your local boat shop? I was looking into doing the mod if I ever came across a second hand Suzuki 9.9 HP outboard but I wouldn't know where to look for the parts.

@Dark30Outdoors 4 месяца назад

I ordered them from Boats.net

@MrSki-tyvm 4 месяца назад

Great mod and I am sure you saved thousands.

@Dark30Outdoors 4 месяца назад

Thanks, but I only saved around $40 or so. Though, technically I have an OB motor I can run as 9.9 or 20 hp. Also it says 9.9 so it’s valid on lakes that are 10 hp or less.

@TomONeilNZ 3 месяца назад

Hi - Tom from New Zealand here. I loved your conversion. What year is your Suzuki outboard?

@Dark30Outdoors 3 месяца назад

Thank you! Mine is a 2021!

@uni-byte 4 месяца назад

Unless this can be done without buying the ECM you'd be better off buying the the 20HP and some stickers.

@Dark30Outdoors 4 месяца назад

Some have said it can be, but I’m not sure that would be ideal long term.

@uni-byte 4 месяца назад

@@Dark30Outdoors Maybe, but the ECM is as much as the price difference between the engines. It would be easy to test and track. Just use plug color to see if the old ECM can adjust the mixture properly.

@glenngraham302 Год назад

Did you change the 9.9 prop? The 9.9 comes stock w a 9.25 x 9 you said you had a 10 pitch?

@Dark30Outdoors Год назад

Yeah, I bought a high thrust model not realizing it was a four blade prop. So, I had previously swapped it out for a 3 blade 10 pitch knowing it would keep my rpm below the rev limiter when I made this switch.

@downunderfulla6001 2 года назад

I have the Suzuki 15. It should work the same for it if I ever decide I want a few more HP🍺🍺

@Dark30Outdoors 2 года назад

Yes, so long as it's a 4 stroke fuel injected. You bet!!

@ryanrobertson9143 2 года назад

So I can upgrade my 2020 15 hp Suzuki to a 20 with the 20 go parts?

@tonyacerra2329 4 месяца назад

What is the cost difference between a 10 and 20hp motor off the shelf?

@Dark30Outdoors 4 месяца назад

Back then it was maybe $480 so u didn’t save a ton of money, but that’s not why I did it.

@bf3and4highlights83 4 месяца назад

Sweet. What year engine does this work on? ECM. Engine Control Module or ECU or PCU or anything else they decide to call it because we can't use the same !%$%#& name as our competitors.

@Dark30Outdoors 4 месяца назад

Mine is a 2021, but I believe they are all still the same minus these basic parts.

@bf3and4highlights83 4 месяца назад

@@Dark30Outdoors Thank you. I am going to do this and then twin them. It would be bonus to find counter/clockwise but with this trick I am not complaining. I used to boat on the ocean (inland passages) and they saying I've heard for decades was two engines always gets you home. Now I can afford two engines. Thanks again.

@sportbikeguy9875 4 месяца назад

without a new prop, your mostly gaining acceleration and torque. you could probably gain some decent top speed with a new prop

@Dark30Outdoors 4 месяца назад

Yes, it had previously been changed to a 10 pitch.

@tjm3900 4 месяца назад

If bought new what would be the difference in retail price between a 10 and a 20 ?

@Dark30Outdoors 4 месяца назад

Not sure. That wasn’t much of a factor for me.

@outdoorohio6781 3 месяца назад

Have you had any issues with the engine after doing this as it’s a couple years later

@Dark30Outdoors 3 месяца назад

No, none at all. In fact, I will be doing a 3 year review for the motor very soon!

@ronobrien7187 4 месяца назад

I can tell by the logo that the ECM is a Mitsubishi unit.

@Dark30Outdoors 4 месяца назад

Many have mentioned that. Many companies make various parts for everything. 👍

@westbayoutdoors123 2 года назад

It would have been interesting to see how much of the improvement was just from the $18 restrictor plate mod and how much was due to the $440 ECM change-out. I suspect 80% of the improvement came from 4% of the modification cost, but I've been wrong before. Also be interesting to know the difference between the 9.9 and 20 HP list price, and whether there's a resale market to recoup some of the $440 by selling the old 9.9 ECM on EBay. (And can anyone flash the 9.9 HP ECM to make it a 20 HP ECM without actually replacing it?)

@Dark30Outdoors 2 года назад

You raise some interesting questions. Hard to belive there would be much of a market for a 9.9 ECM, but possibly. I do know some guys that have just done the switch from restrictor plate to the screen. They say it made a measurable difference, but I don't know how much.

@michaelreynolds1904 2 года назад

@@Dark30Outdoors swap back the 9.9 ecm and report back.

@borisj4054 2 года назад

Recon it is just a $2 part in the ECM to increase the fuel flow to match the increase air intake.

@Dark30Outdoors 2 года назад

@@borisj4054 That's very interesting!

@jimb6683 Год назад

Couple videos on just making the hole in the air plate to increase speed... guy said if you make the hole to big the air/fuel is and issure for the 9hp ecm. So if you just add the new restrictor plate if will not run well. Cuts out at highter rpms

@monster-pq7ln 7 месяцев назад

I wish I saw this video a month ago. Just bought a 20hp remote suzuki and paid 3600 to the door. The 9.9hp is a thousand less! Haven't even took my new motor out of the crate yet. 😠

@Dark30Outdoors 7 месяцев назад

Oh, that's a stinker!

@hansonle9687 2 года назад

The 9.9 cost $2,600. The covert kits cost about $500 Add these up got total about $3,100. The new outboard 20hp Suzuki cost $3,070. Why bother to do this kind of conversation to void the manufacture’s warranty?

@Dark30Outdoors 2 года назад

That's not what I paid for my 9.9. Also, in my area there are lakes that are restricted to 10 HP or less and my OB shows as a 9.9. These motors have a great reputation. I don't expect it will give me any problems.

@samuelpollak964 9 месяцев назад

you don't need to change the controller :-) It is enough to update its firmware, it is not me, but my friend said to me, it is about $130 You could save lots of money to buy alcohol or something else!

@Dark30Outdoors 9 месяцев назад

I would have no idea how to update the firmware for a ECU. Thank you for the tip though!

@sadsausage2224 4 месяца назад

Hi, what year is your outboard? What years of outboards can you do this?

@Dark30Outdoors 4 месяца назад

Mine is 2021. I believe it can be done every year that is 4 stroke with electric fuel injection.

@kakehull2566 6 месяцев назад

Does this work for a 2008 suzuki 4 stroke? (9,9)

@Dark30Outdoors 6 месяцев назад

I'm not sure. If it is fuel injected, I guess maybe.

@ryanrobertson9143 2 года назад

Will this give my 2020 15 hp Suzuki to a 20 hp?

@Dark30Outdoors 2 года назад

Yes! If you want you can upgrade to 20 hp!

@jaylawvlogs264 4 месяца назад

Other than getting around the boating laws. The price on a 9.9 hp is around 2400. A 20 hp is 28-2900.

@Dark30Outdoors 4 месяца назад

Yeah, wasn’t a big money saver, but that wasn’t the point.

@FreedomIsNotFree999 4 месяца назад

What year is the motor from. And the cost for parts

@Dark30Outdoors 4 месяца назад

Mine is a 2021, and the approximate cost of the parts when I bought them was around $440

@g-track5065 4 месяца назад

I want to get mine done like you how much and where you get the parts?

@Dark30Outdoors 4 месяца назад

Boats.net. I can’t recall price, ballpark 2 years ago around $445 for everything.

@bakergang89 2 года назад

It's weird that two strokes are faster at less rpm like say a 15hp johnson 15 2 stroke I had would run 22 mph on a 1436 deck and all gear. I put a tohatsu 15hp 4 stroke and it barely wants to do 18-19 maybe

@Dark30Outdoors 2 года назад

I agree!

@keylago220 Год назад

That's good,but I bet that voids your factory warranty.

@Dark30Outdoors Год назад

Yes it does. Only comes with a 3 year warranty and the fail rate inside that period for these motors is next to none!!

@jrevan 4 месяца назад

You left out the top speed before the modifications.

@Dark30Outdoors 4 месяца назад

About 13 mph. I’ve learned better how to adjust the trim and now I get 24.6 mph regularly.

@ralph9987 2 месяца назад

Which models and which year builds?

@Dark30Outdoors 2 месяца назад

I don't know all of them that this can be done with, but I am reasonably confident in saying that all of the models that are 4 stroke with electronic fuel injection then they can be converted!