35 Year Old Engine Tick VS Marvel Mystery Oil 

Marvel Mystery Oil History: Founded in 1923 by Burt Pierce, the brand has remained legendary for over 90 years. Pierce’s reputation for ingenuity preceded him as he was already well-known for inventing the Marvel Carburetor, standard equipment on 80% of all vehicles produced after World War I. Vehicles of the post WWI era encountered carburetor problems, the most perplexing being clogged jets due to high lead content and other contaminants found in the gasoline of the time. The problem motivated Pierce to direct his creative ingenuity towards formulating a blend of chemicals and petroleum products to clean and maintain clogged jets. He was successful beyond his wildest expectations and the legend of MMO was born. Marvel Mystery Oil proved to have other beneficial effects on the engine. By creating a top ring seal, it produced higher compression and by preventing blow-by on power strokes, it resulted in more power. Marvel Mystery Oil also improved gas mileage and minimized engine wear.

I use marvels for preventative cleaning and lube in the tank and in the crank case off and on not constantly.

Use Marvel Mystery Oil also in the Gas it really is legit for more power and smooth operation.

I use MMO in the gas of my machines after they have sat a few seasons. Like the Snow blower, generator, and power washer. Before I put them all away for longer term storage I run them all empty. My snow blower is at least 15 years old and I’ve never had a carb or starting issue with it. Oil changes and one auger and worm gear rebuild after a lot of use. Project farm did a ton of more scientific testing on MMO and Seafoam and proved without a doubt that these products do in fact help with cleaning and adding a bit of compression. While they aren’t going to repair broken or worn out parts they can help older worn motors limp on for awhile.

Snow is so much fun on a three-wheeler! I have that exact same 225DX, this is my second one, they both sound roughly the same. The first one I had was back in 1999, and I just got another one in October 2022 - they sound exactly the same. I have changed all of the fluids, cleaned out the carb (made the biggest difference) and basically cleaned it up at this point, the valves are next for mine. I appreciate the great video made. I love the "snap" noise of a bolt coming loose, it is sweet.

I love the snap too! As long as the whole bolt comes out....great video,thanks...

When I was 12 years old I rented one of those on South Padre Island the first time I put my foot down on the corner I ran myself over it ripped me off the bike. The first thing I remember thinking was I hope my mom didn't see that because she won't let me continue to ride it I rented it a week later with my lawnmowing money. That second time went flawless.

Just picked up a 225DX. Excited to bring it back to life!

Sounds like the stator. I removed my stator to fix a leak, and i slightly damaged the edges making it uneven (not a perfect circle) when I put the stator back on, it made that same ticking sound.

Legendary in small amounts too much blow motors

Hey brother . Man this video brought tears to my eyes I had that exact same three wheeler as a kid I love it to death and ride it hard did many repairs but never had to take the engine apart at all just maintained it and it lasted a long time I even broke the left side axle shaft and my dad welded it back together lol was never the same but last till the clutch pack went out take care of the old Yamaha thanks for the good memories

Can you still buy new parts for these? I've always wanted one of these since they came out. I'd hate to buy one and can't find parts.

MMO not supposed to be used on bikes w wet clutch in crankcase......causes clutch slip.

My Hondas sound same it’s the valves adjust them also bear claws on back go anywhere

How much do you want for your three-wheeler I've been looking for one for a while

Almost every yamaha makes that noise brand new.Been riding yamahas since the eighties and have had my share.Have four yammies in the garage right now.72,73,2001,2016 and all previous ones have made that noise.Two four strokes two two strokes in the stable now.They are known for that noise.The 74 dt did it the 83 490 did it the 82 125 did it.And the four in the garage do it.Not one ever blew up.

i have a 83 honda 200, would like to also have another like a yamaha to go with it.

At Idle it sounded better at the end!

cam chain has to be TIGHT. you shouldnt be able to push it with finger do NOT over tighten it

You were supposed to replace 20% of the oil not just put it in with all the oil. Probably doing more bad than good with that much fluid in there.

Too much marvels will thin out the motor blow it up

Yikes

Design issue.

you can't handle the comments then you shouldn't be doing videos

Valves

I have two Yamaha 225 DX's they both have that exact sound, they have had it for at least 15 year's little Lucas helps but you can still hear it

I'm so glad you are uploading more often again

Adjust the valves

Adjust the valves

It takes 10 minutes to adjust those valves I’ve had one it’s super easy

Valves or decomp valve but I've been riding these my whole life never heard one that didnt have a tick think it would lose its yamaha magic if its fixed

Adjust the valves. Trying to use MMO for top end noise like you're experiencing only works with hydraulic lifters.

When you use the impact driver, turn it in the direction you want the screw to turn while impacting it with the hammer. It usually only takes one strike of the hammer to loosen it. Hope this helps.

I remember the video with the John Deere Kohler with a rod knock when you put lucas stabilizer and it "fixed it" 😂🤣

MMO is great stuff when used for the problems it can fix . Lubricate injectors , clean and unstick hydraulic lifters , unclog oil scraper rings , clean sludge out of oil galleries and cylinder heads , clean valve stems and seals . I've used it for over 35 years along with seafoam .

I'm tryinging to finish the last video and here comes another one.

i had a yamaha tw200 that sounded same. a tappy valve is a happy valve. be careful over tightening that cam chain.

Great work on the 225DX videos, they're how I found your channel! I have one myself that I've been working on and can rarely find info about it. Keep the videos coming!

I would just drive it as is until it blow up ... then buy a Honda

The rocker arm is supposed to float back and forth. I'm a motorcycle mechanic for a living. That's supposed to be like that

I have one of those impact screwdrivers and I love it man they come in handy when you dont wanna strip out a screw!!!

That sound is normal for mid to late 80's yamahas. The BW's and TW's tick like that as well. I own several 80's yamahas and have dealt with these since they were new. Your Shaft sounds good to me.

Also the chain tensioner is spring loaded so make sure you don't over tighten it

2 videos in 1 day spoiling us😮

I’ve been watching it since you ever bought The three wheeler and I come to say you are one handyman

fixed on it...tested on it.....I give two thumbs up!

Put in a little of that Lucas heavy duty oil stabilizer. That quiets down anything.

5:13 Check the oil level procedure. Most engines require that the dipstick be screwed down, then removed to check the proper level. I wonder if MMO is not much more than thin version of ATF. I've used it before with little to no success. There's really no "cure in a can" for mechanical issues IMO.

Also turn the motor by hand and see if it’s a slap it could be the timing chains with the spark plugs out

Check your valve lash and make adjustments accordingly!

MMO works wonder when trying to free up a stuck motor. also it smells awesome!

super fun that you got it started and it gets better and better, you are really good. You do not see those three wheels here in Sweden and if you do, they are sold for a lot of money. You know here in Sweden the Swedish people are crazy in old vehicles, and pay almost anything when they find what they want. greetings from Sweden brother

The ticking has something to do with the adjuster I know you probably won’t read this but you gotta make it as lose as you can then tighten to factory reset these bikes always had these problems look up the resets

I've been enjoying the more relaxed, detailed videos recently. Thank you and keep up the good work!

Check the compression relief lever adjustment as well, if it's to tight it will cause a tick, as well as possible low compression.

Yamaha is also good about placing a sticker on the fenders which tells you valve clearance specs.

With the handle of a screw driver against your ear, touch the tip of the screwdriver to the engine block, head, and transmission with the engine idling to further diagnose where the noise is coming from. Also realize that the exhaust pipe, being so old and rusty, is probably thinner than a new one, and you're probably hearing the exhaust pulse though the thinned pipes. The same theory would apply to cars with exhaust headers instead of cast iron manifolds....

Gotta watch tightening the timing chain tensioner. Too much tension will make your cam tight and wear out the cam bearings

I think that tick isn't a problem I have a 87 Honda and it sounds like that ... Yeah and I agree the tires shuld be softer .... Keep the videos coming ....... Do some snowmobile vids.... #stayup

Also don't forget you need the missing top motor mount. The one that bolts to the motor head and frame.

my guess is that your automatic timing chain tensor has a bad spring in it. I had a sloppy timing chain that made that sound. I replaced the auto tensioner with a manual one bc the oem was prone to fail. I adjust it every time I check clearance and it works like a charm. Use the ol screwdriver technique to hear where the tic is coming from.

I used marvel on my 1983 atc185s , I didn't notice a big difference but I added a little bit of Lucas oil stabilizer and it quieted it down. I also like the stp oil stabilizer because it has zinc in it

I've only used the spray on bolts, never used the fuel/oil additive.

I'd recommend trying to run higher octane gas to see if that fixes the noise. It doesn't sound metallic, but I can't necessarily tell from the audio.

Marvel Mystery Oil works great on cleaning injectors, (EFI System)

Adjust the valves and the timing chain will help,but those old Yamaha had a problem with the cam bosses in the head wearing out.

Loosen the locknut. Turn the clutch adjuster with a screwdriver counter clockwise until resistance is felt. Turn it back, 1/8 turn (clockwise). Tighten the locknut to 11 ft.-lbs.

For your motors safety i wouldn't go too tight with the timing chain tensioner, I have broke a a cam gear by not realizing i had gone too far. My motor jumped time in process of gear breaking and had bent valves as the outcome

One of the things I do like to use Marvel Mystery Oil on is engines that have been sitting for years and are stuck. I will pour a cap full down each spark plug hole and let it set a couple days and then start working the engine back and forth.

Sounds better after you made adjustments. I had trikes growing up love them. My cousin had a 225 that had reverse. I had a Honda 200 a law 160 and a Honda 250sx and a 185

Have you adjusted the timing chain and valve clearence

Siri popped up on my on my phone from the audio around 4:20. Then you said siri im not talking to you, wierded me out for a second

Pour that whole liter of Magic oil in there!!!

This is normal for these older aircooled motors..brand new they had a tick.should be good for a while if it's not smoking and valves and chain are in spec leave it alone..eventually will need a head work, guides, new valve seats cut in, it would be really loud though

you should explain what the impact driver is and how and why it works, i suspect most of your audience doesn't know.

I live in Florida and have a 1985 ATC 250SX in South Dakota at a secret location that I would love to ride in the snow right now! Man, did it look like you had a blast!

I think the ticking noise is louder now but should still be a quick fix if its not too bad

Another great video, thumps up!

Let see a video on fixing it right with a valve adjustment.

I'd like to try a compression/ leak down test using marval mystery

If this thing shares oil with the clutch, you DON'T NOT ever run MMO or products like it! You should never run any sort of friction modifier additive through something that relies on friction to operate. The oils these machines run on are specifically design to not cause problems. Side note: MMO can fix loud valves, but it can't fix improperly adjusted valves.

That sweater tho I remember when you rode ur lawn mower to puglifes place

You need to fix the exhaust leak. That is where most of the noise is coming from.

I’m loving the new schedule dalton stay froggy fresh and try not to blow up that 225 lol

I use mmo in my ATV's gasoline and i go a bit heavy and it runs with great power

You'll have to replace the top end

That's a value tick for certain.

Haha know whats funny? My iPhone was sitting next to my computer when you said "hey siri, whats 20%....". My phone responded lol :0

Older vehicles call for older fuel. older fuel had more lead in it! valve slap is also caused by lack of lead in the fuel put lead additive in the fuel!

Oil additives can help clean out carbon deposits, sometimes it thickens the oil to help reduce noise but nothing in a bottle can fix a mechanical issue. Just masks the problem. Kinda like turning up the radio in ur car to mask a leaky muffler

Nice video. On a good topic.

When he said hey Siri mine went off no joke I was like wtf

The timing chain adjuster, you need to wind in the bolt until the rod inside is flush with the bolt. Then lock the nut up. I have an xt200 and the head is also ticky. These ac engines are known to cause concern for many people that don't understand that they are just noisy. Nice to check the vales and chain though for peace of mind.

Hey dalton I just gotta say I missed your videos and I rly like the new upload schedule Bc the more 3D the more awsommeee the braaappppp machines

Those older yamaha,s are very well know for top end tics n rattles...

you have the valves set too lose try tightening the valves down a quarter turn and then try running it

If it aint broke dont fix it. Seems to run good so and if everythings adjusted to spec call it good and ride the thing.

Dude adjust the valves 😂

Just adjust valves

OMG HE IS BACK❤❤❤❤❤❤❤❤