YAMAHA GP1800R STAGE 2 INSTALL + ENGINE FAILURE!! 

Thank you!

All manufacturers have their flaws and weak points. There’s no perfect watercraft out there by any means.

Well to the credit of everyone else they're issues can be fixed through aftermarket sources... how do you fix the fact seadoo uses 3 mounting point for their engine? Or that they use a cooling system that utilized the ride plate? Or the fact they use a carbon seal? Granted the carbon seal was greatly improved upon this year but still.. seadoo sells soo many craft and they still can't do basic things to make their ski more reliable and easy for the consumer to work on.. I mean look up how easy it is to fit an auxiliary gas tank on any waverunner or jetski then see how hard it is to do it on a seadoo! Sorry I am biased against seadoo I had a 2002 kawi that never had any issues while my buddies dad had bought the best of the best seadoos that were always in the shop and ended up blowing up while my kawi is still out there going strong.. sold it to a person I know

@@relaxation2380 pretty confident if you do some math on how many seadoo get sold over one year and how many break the percentage is probably lot lower than others. But as everything go to the base on how it get use maintained and treated over time. Owned 3 seadoo 2 brand new including new gtx with IDF (by the way my IDF was part of the "defected" badge and have 50hrs on it without needing to replace it) and one brand new for 6 years modified ride it for well over 250hr and sold it as new without any issue (we still riding together with the buyer) in between this 6 years I bought a 300 according to the owner had issues like leaking carbon seal. I bought it and need to replace the shafr after 1 year it was rusted as probably never washed properly is been 3 years that I'm riding it without any problems at all have 350hr on it and apart from normal maintenance has no problem. It all goes down on people and how they treat they're stuff.... For the person that tries to do work at home if it gets too hard is not manufactured fault is probably hon not capable or should probably pay someone else to do it properly

Thank you!

Everything happens for a reason Billy! Stage 2 is much better than stage 1 :)

Sorry you are having so many issues. Please email me at the store email and let’s talk about this. I’d like to help you through it. Jerry Sales@greenhulkstore.com

Definitely awesome!

No chance he got those numbers unless he was in a river with the water flowing 7mph

Anyone can drop an email/Instagram/Facebook/etc for gps pictures. I have numerous gps pictures of over 89 mph and happy to share with anyone

Also no current..in a short waterway with locks at both ends

One in every crowd post the truth let the BS blow in the breeze

Thank you!

Thanks! We’re going to get started on listing the dial indicators in our store this week 👍

@@GreenHulkGarage Nice!!! Atta boy!

Thank you!

Same here!

Yes I can

@@GreenHulkGarage thanks

Awesome!

Thanks!

Thanks for the support!

It’s 100% a Yamaha defect. This happens to many stock skis. On a stock ski it would be covered under warranty

I’m glad you like them!

They would not.

Actually depends on the tech doing the inspection, wink, wink. You got money?

Very lucky!

I really wanted to go with Riva but I couldn’t afford it and I went it JLP stage 3. Haven’t put it in yet. I don’t know much about this. I know the Riva stage 3 is much more expensive and probably has more items to be installed. I have no idea how fast mine will be with the JLP stage 3 but if I get near 90 I’m a happy camper. I didn’t expect yours to go so fast so when I heard you say the speed I was like whoa no wonder that thing looked like it was booking it!!

Stage 3 is installed and in the tuning stages..92 mph is the best so far

@@GreenHulkGarage that is flying bro!

This will be a good read for you 👍 www.greenhulk.net/forum/personal-watercraft-performance-skis/yamaha-pwc-performance/yamaha-pwc-performance-4-stroke/262395-

Yes, this is usefully due to fouled spark plugs.

@@GreenHulkGarage just put new ones in thay have maybe 10 minutes on them what would foul them so quick

@@Strangerthingsvehicles could be an overly rich tune condition in the midrange. What tune are you using?

@@jgaddis68 shock no turning

We had it sitting on the shelf waiting to go in for stage 2...I was taking it for one last ride before pulling it all apart when it happened.

@@GreenHulkGarage 😟

@@GreenHulkGarage oh dang sorry for the bad luck well at least ur nearly hitting 90, 5 more than mine.

Nearly hitting 90 isn’t going to cut it for me lol! Stage 3 will be going on VERY soon!

Not yet

I do recommend removing it but taking it out for a spin first won’t hurt!

@@GreenHulkGarage thanks greg, much appreciatted, at how many hours should I look at removing the flame arrestor?

The sooner the better. The chances of it causing a dropped valve are very slim but why risk it?

It happens all the time. Sure, Yamaha would replace your ribbon under warranty, but it would just happen again as they do not have a permanent solution for this yet. The permanent solution is to remove it. Lots of great information here greenhulk.net/forums/showthread.php?t=295336

The GP1800 is an EXCELLENT watercraft...it would be covered under warranty if it were to happen to any stock ski within the warranty period. Don’t let a simple fix or potential problem turn you away...all brands and models have their issues

My Yamaha Boat has two 1800’s, (non turbo) very solid engines!

My 1200xl limited just stopped doing anything😂new batt new starter solenoid went all through the start stop switch does absolutely nothing when you push start no clicking someone told me it might be the digital display causing it to not respond

It’s required by the coast guard and completely unnecessary on a modern fuel injected engine. Yes it’s okay to modify it and does make a difference in performance

Correct

I did an intake manifold upgrade kit which deletes the flame arrestor.

No, we are running the Riva titanium retainers with the stock valve springs. It’s all that’s needed.

This was not an issue on the 2017. The 2017 used an aluminum intake manifold with a different design.

@@GreenHulkGarage thank you.

All skis will lean one way or the other at slow speeds. At slow speeds (20-30) all skis aren’t fully planed out and lean to one side of the V-hull

It doesn’t fall out, it pushes into the manifold. It pushes into the manifold because the lip that supports it is only on one side, so the ribbon covid sideways and then pushes into the manifold. Lots more information and pictures show this here on the GreenHulk Forum greenhulk.net/forums/showthread.php?t=295336

Yamaha fixed the head cracking issue starting in 2021 👍

Over the past 18years I haven't seen a cracked head on any Yamaha waverunner at the Yamaha shop i worked at , so it cant be that common of an issue...

Thanks!

Yes it is

You do not but you will get increased performance deleting it.

It does, but it’s much larger than previous models and flows much more air. It’s also molded into the manifold and isn’t going to dislodge like shown in this video.

@GreenHulkGarage Thanks!,is there a better intake that I can put on yet?

Yes! This is the best air intake for these skis www.4-tecperformance.com/index.php?main_page=product_info&products_id=3339

@GreenHulkGarage Awesome,I just bought a 1.9. I found a video of one of the engineers who worked on the new engine. Very interesting. He also said the FX and VX line have the same impeller design. Since the 1.9 has more horsepower I wanted to put a steeper pitched Solas on. Can you recommend a Solas that will work now(stock) as well if I do updates to the engine?

Yes, this is the impeller you need www.4-tecperformance.com/index.php?main_page=product_info&products_id=7814

Yes you can

@@GreenHulkGarage oh cool it will be done then, thanks for replying. hopefully hit another mph or 2.

Yes it’s safe as long as you use the Riva titanium retainer upgrade.

Thanks for the info love your videos On Yamaha, Yamaha power 💪💪💪💪

With the ribbon it was “only” running 83 mph. That’s was on a stage 1+ setup

@@GreenHulkGarage of I knew what I did now woulda saved up for an SVHO. I love my SHO but only does 71 with same mods. Needs more boost lol

The svho is an INCREDIBLE engine

It is VERY common! I would take it out ASAP!

@@GreenHulkGarage how long a job is it and on what technical level? You’ve done this before. What about guys who haven’t? Does the kit come with instructions for the delete or is there a separate RU-vid video for that?

@@alexnutcasio936 it’s about a 2 hour job for most people. The Riva kit comes with easy to follow instructions.

Take the ribbon out asap

What’s your email? I’ll gladly send you pictures of an 89.4 gps and 89.0 gps from back to back runs

But for you only to be doing 85 with those mods..something can’t be right. I’ve gotten 84.5 on a stage 1+ setup 🤷‍♂️

It’s an issue on all 2018 and newer SVHO skis

@@jgaddis68 well dayum. Thanks.

Well, I planned to pull it apart that night to install stage 2 and do the ribbon delete at the same time. Just my luck 🤦‍♂️

@@GreenHulkGarage I deleted mine just in time…It was already turning….lucky the seal was still in place. I need to go to GreenHulk and order me a few more goodies!

We’ve got all kinds of goodies lol! Thank you for your business 👍

I don’t, but I do enjoy helping people with installs in my local area

It’s not a seadoo, yammies are actually quick!

It’s not a seadoo, yammies are actually quick!

This failure had nothing to do with the ski being modified, this failure was due to Yamahas design flaw. It’s happening on bone stock skis. More info here greenhulk.net/forums/showthread.php?t=295336

Yes they do have to prove that modifications caused a failure. In this case there’s no way to prove directly what caused it so warranty denied. However if my display went out, steering system broke, a hull defect, etc then they can’t deny my warranty because of engine modifications as that wasn’t the cause.

And could have I gotten this covered under warranty? Quite possibly depending on the dealer. But why should I wait months for a dealer to get it fixed when I can spend next to nothing to replace a valve? I had a valve here and the entire ski up and running in a matter of days. No labor cost as I do the work myself, very simple and cheap fix for me.

@@GreenHulkGarage I completely agree. The problem is just like you said, in this situation the cause wouldn't be able to be proven so than your at the mercy of Yamaha and/or your dealer to cover the claim. Where if the machine was stock there would be no concern if it would be covered or not. A modded machine opens the door for denial. For example in this situation, YAMAHA: "you see sir the increased air velocity from you air box modifications ie. CAI, is what caused the flame arrestor to become dislodged" Not hating on mods. My ski is heavily modified. Just speaking the truth. Hopefully few people will find themselves in such a situation but it happens in ALL areas of warranty coverage of products.

@@GreenHulkGarage You're not joking about months. Snapped the timing chain on a FZR, didn't see the ski again for another four and a half months. By the time I got it back I'd almost forgotten I owned it. Great vid btw, cheers.

It is way too common! Everyone with a 2018+ SVHO needs to fix it with the intake manifold upgrade

To be fair, all manufacturers have their issues. I’ve had countless high performance yamahas in my garage, none of them had a supercharger issue, none had defective coil wiring, none needed a clutch change after hard hours of abuse, and any hull issues only came from impacts to the hull. I’ve had seadoos in my garage that have blown oem coolant lines and burned up engines with less than 20 hours on the clock. The fact is all manufacturers have their duds; to call out one brand over another on reliability is simply not fair considering all of them have defects

Yes, stock supercharger

It’s moving for sure

Unfortunately not