YAMAHA GP1800R STAGE 2 INSTALL + ENGINE FAILURE!!

This SUCKED! I hope y'all learn from my mistakes to prevent this from happening to your own skis! Please give the video a thumbs up and subscribe to the channel for more content on my 2021 SeaDoo RXPX, 2021 Yamaha GP1800R, Tesla Plaid, Tesla Model 3 Performance, and much more.
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[@NickWilliams016]

Thank you for taking us for the ride and showing the ups and downs you go through. Appreciate the content you are creating!

[@GreenHulkGarage]

Thank you!

[@strvph64]

Nice work! Cool that you took us through real life problems, not just the fun stuff.

[@GreenHulkGarage]

Thank you!

[@LifeBeginsOnTheWater]

Damn Greg sorry to hear that about your new ski. Glad to hear it wasn’t much worse damage. On the other hand I guess it sped up the stage 2 installation. Great content like always, thanks for sharing. See you soon Billy D

[@GreenHulkGarage]

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

[@MultiBuster48]

I did the ribbon delete today… twisted and about to fall I. The manifold. Bad design. Glad you gave the advice. Nice videos!!!

[@andreabta]

Finally someone that talks about the bads of yamaha as well as the good.... There is a lot of people always talking poo about seadoo and they're issues but likes everything issues can happen to anything.... Well done video keep rolling

[@GreenHulkGarage]

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

[@relaxation2380]

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

[@andreabta]

@@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

[@stevenorta7565]

Nice job! Thanks for taking the time to do that!

[@bryonjodinolan]

Great video as always thank you got mine on order glad you made this video I wasn’t going to upgrade manifold til this video

[@GreenHulkGarage]

Thank you!

[@claudei6072]

Same here!

[@giboking6695]

my wrong ordered intercooler is becoming very handy now.....hoping for good numbers when my big order is on my ski Greg thank you for your business, best regards from Holland

[@GreenHulkGarage]

Thank you!

[@gerardotorres9963]

Excellent video you are awesome because all your good videos, I am more confident to do the job I have every part from riva racing to make my21 FX cruiserSVHO stage 2 I am going to do everything myself, including the titanium retainers I got everything from Riva racing just to keep every part compatible when I use my maptuner x again, thank you for all your videos. You are awesome.

[@brockb4452]

I got a stage 2 and a ribbon delete and upgraded waterbox being installed on my 2024 FX svho right now- cant wait to test next week once its out the shop!

[@ArtyDiaz117]

Great content and thanks for the break down on the Gp1800r.

[@GreenHulkGarage]

Thanks!

[@john.french]

Nice work! One of the few Yamaha weak points. Glad it motivated an early stage 2 and can't wait to see some comparison now! Definitely think about selling some indicators and tools on the site. Think that may be an opportunity there potentially. Stoked for the next one!

[@GreenHulkGarage]

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

[@john.french]

@@GreenHulkGarage Nice!!! Atta boy!

[@kendrajones984]

Wow if this is an easy mod I would hate to see a hard one. My idea of easy is change the impeller or get rid of the speed limiter. Very impressive video.

[@dproulx7380]

Guess I’ll be doing that next spring !!!! Thanks Greg have not lost faith in Yamaha

[@GreenHulkGarage]

Awesome!

[@jimcloud74]

Have you used the Riva vacuum port adapter that tandems on top of the intake temp sensor? Any cons that you have seen?

[@stevenweatherford5859]

love the videos and thank you

[@GreenHulkGarage]

I’m glad you like them!

[@GP-SVHO]

Thanks for the video Greg… I buy all the parts for my 21’ GP from GH.

[@GreenHulkGarage]

Thanks for the support!

[@MegHumper]

how much is installation for a stage 2 with imuk and supercharger shaft upgrade???????

[@charlesdecker7379]

I pulled the ribbons out of our 2018 VX limited and my 2021 GP1800R SVHO the very next day after bringing them home.

[@henrythompson5624]

Can you do another video showing how you did the full cooling upgrade

[@GreenHulkGarage]

Yes I can

[@henrythompson5624]

@@GreenHulkGarage thanks

[@johnpower8356]

Glad I saw this I’m considering getting a gp1800

[@GreenHulkGarage]

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

[@anthonys7534]

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

[@edud8452]

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

[@patricsmith4026]

90 MPH on an un-tweaked Stage 2 is incredible. Maybe the valve job improved performance slightly, but regardless, an awesome result.

[@GreenHulkGarage]

Definitely awesome!

[@enigma9789]

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

[@GreenHulkGarage]

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

[@GreenHulkGarage]

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

[@monkeymoney7830]

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

[@billbertino6180]

Hey, awesome video just picked up my 23 and was thinking about stage two in the off-season but was wondering if it will void warranty?

[@GreenHulkGarage]

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-

[@tymatt4555]

Wow can’t believe it didn’t mess up the bottom end. Lucky!

[@GreenHulkGarage]

Very lucky!

[@brucecooley4170]

So I have a seadoo 300, I am wanting to know eliminating if the internal flame arrester on yamaha or seadoo is increasing the risk of dangerous backfire or is it a coast guard required device that on fuel injected modern engines is unnecessary? Is it ok mod even if you don’t want to do the whole intake runner upgrade? 1more psi of boost could be significant without spending a bunch on whole system.

[@GreenHulkGarage]

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

[@Mike-Honcho-]

I’m surprised Yamaha hasn’t had a recall for this.

[@mencho8443]

thanx man!! awesome

[@GreenHulkGarage]

Thanks!

[@anthony03241980]

Bro I have a 2020 svho does yours lean hard to the right or left and when your going slower you can really notice it it’s driving me nuts I have a stage 2 same as yours done to mine and I think mine topped out at 81

[@GreenHulkGarage]

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

[@StevenSynfulmindedVickery]

How often do you think this happens I just purchased a 2023 GP1800 SVHO, Is this something the stock Warranty will cover or should I get a intake manifold upgrade kit early on?

[@GreenHulkGarage]

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

[@jimwinn8064]

Do you guys sell the dial indicator stand or complete assembly?

[@GreenHulkGarage]

Not yet

[@amaluddinalim5768]

Thanks for the video greg. I just bought a 2022 gp 1800 svho and talking about the flame arrestor do you think its best for me to remove it? before I take it out for a spin. I'll be getting mine in jan 2022

[@GreenHulkGarage]

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

[@amaluddinalim5768]

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

[@GreenHulkGarage]

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

[@douglassoaressouza]

Wen can you get my jet done ?

[@zacwin]

I have a 21 GP HO, I need to do this ribbon delete to my non-SVHO model?

[@GreenHulkGarage]

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

[@streetfighteralpha9891]

It sounded like you said this was only an issue with SVHO models. Does that mean the HO models do not have this problem?

[@GreenHulkGarage]

Correct

[@michaelwilliams132]

So you can do the ribbon delete without any other mods? I have 21 svho just like Greg's. stage 1 riva exhaust 8300 stock impeller pitch.

[@GreenHulkGarage]

Yes you can

[@michaelwilliams132]

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

[@jasonmekush5280]

When you and your Dad were on Watercraft journal's sunday stream I mentioned ditching the intake ribbon..............

[@GreenHulkGarage]

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.

[@claudei6072]

@@GreenHulkGarage 😟

[@jasonmekush5280]

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

[@GreenHulkGarage]

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

[@2SHARP4UIQ150]

Did you add another flame arrestor, or did you left it without it?

[@GreenHulkGarage]

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

[@davidmaynard848]

I am looking purchasing a 2017 svho gp1800 that already has a RIVA stage 2 kit. Does that mean this has likely been resolved?

[@GreenHulkGarage]

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

[@davidmaynard848]

@@GreenHulkGarage thank you.

[@WaterDR-tw8re]

Oh boy! Wonder if warranty would repair since a stock part caused this. I suspect not.

[@GreenHulkGarage]

They would not.

[@gregwillis7767]

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

[@WaterDR-tw8re]

Do we know how common this is? I have a 2019 FX SVHO. Stage 1. Was told to leave the ribbon in.

[@GreenHulkGarage]

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

[@alexnutcasio936]

@@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 KZbin video for that?

[@GreenHulkGarage]

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

[@vincentnardini1428]

Take the ribbon out asap

[@jetskirob9779]

Good video Yamaha need to go back to the aluminium manifolds

[@jimwinn8064]

Did you upgrade the valve springs before reinstalling the head?

[@GreenHulkGarage]

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

[@jasong712]

Flame arrestor is the same as the ribbon delete right?

[@GreenHulkGarage]

Yes it is

[@hellone8002]

Question Stage 2 9200 RPM is it save on choppy water don’t want to blow a valve?

[@jgaddis68]

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

[@hellone8002]

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

[@wollm2360]

Just wait for the head to crack they are a ticking time bomb mine just went on my 2016 fzr including the bottom end and another buddy same thing a week later. This is the first time ever im thinking about a seadoo what do you think ?

[@jgaddis68]

Yamaha fixed the head cracking issue starting in 2021 👍

[@Spirited_Driver]

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...

[@jasonvalente7900]

How does it just fall out if you need a hole saw to remove it????

[@GreenHulkGarage]

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

[@Breakitjake]

Crazy it's that fast with the ribbon in place.

[@GreenHulkGarage]

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

[@Breakitjake]

@@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

[@GreenHulkGarage]

The svho is an INCREDIBLE engine

[@Bonsai-Miata2020]

Just like my Harley Davidson motorcycle, I do not try to re-engineer my engines and I never have any issues.

[@Strangerthingsvehicles]

Have you ever had one run rough about 10 seconds after turning on Runs fine and then all of a sudden sounds like it's miss firing

[@GreenHulkGarage]

Yes, this is usefully due to fouled spark plugs.

[@Strangerthingsvehicles]

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

[@jgaddis68]

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

[@Strangerthingsvehicles]

@@jgaddis68 shock no turning

[@traceelliot1360]

Great video! Does the new yamaha 1.9 engine have this same flame arrestor?

[@GreenHulkGarage]

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.

[@traceelliot1360]

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

[@GreenHulkGarage]

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

[@traceelliot1360]

@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?

[@GreenHulkGarage]

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

[@costasgeorgiou5015]

So is this also an issues on a 2019 fx svho also?

[@jgaddis68]

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

[@costasgeorgiou5015]

@@jgaddis68 well dayum. Thanks.

[@LifeWideOpen780]

I have a hard time believing yamaha would make such a weak point. Are you sure none of these mods lead to that failure? Also wouldn't it be under warrenty?

[@GreenHulkGarage]

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

[@Landerh1984]

Do you offer installation?

[@GreenHulkGarage]

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

[@ericsmith6677]

Yamaha and other companies been making PWCs for 40 years why the hell do we still have these issues

[@mjethier]

I have a '17 GP1800. It's blown up multiple times and after 3 engines I think has about 14 hours on it 6 to 7 seasons later. I still love Yamaha...bought a '22 Grizzly XTR. This ski on the other hand not so much. Your dad has sold me parts to try and fix it several times. I am going to give it a last hurrah this upcoming season and replace the head for the 3rd time...cracked. I followed my brother around while he attempted to break the unit in this past summer...the second it shot an alarm, we towed it in. Milky oil. Pumped it out, filled the engine up with a ton of oil and walked the eff away. a 14,000 investment initially...has now cost me about 50k and run for a whopping 30 minutes each time before failing hardcore. Don't blame Jim or anyone...just Yamaha.

[@GreenHulkGarage]

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 [e-mail]

[@dre3809]

Man how fast do you think it would go with stage 3?? Lolol

[@dre3809]

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!!

[@GreenHulkGarage]

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

[@dre3809]

@@GreenHulkGarage that is flying bro!

[@Gooddog1]

The magnuson warranty act of 1975 governs all manufacturers warranty claims

[@Specialized1993]

90mph on unteaked stage 2??? hmmm, Sounds TOTALLY legit

[@user-gj5lt7mt4j]

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

[@user-gj5lt7mt4j]

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

[@enigma9789]

Funny you didnt show the gps. I doubt very seriously you got 89.4 Im running stage 2 with HO cams, 9400 rpm with methanol injection and only getting 85mph.

[@GreenHulkGarage]

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

[@GreenHulkGarage]

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 🤷‍♂️

[@gmracer2003]

I got lucky on mine the rubber almost fell out

[@GreenHulkGarage]

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

[@robertquinonez_]

I can’t believe the Riva ribbon delete wasn’t already done….you guys sell it.

[@GreenHulkGarage]

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 🤦‍♂️

[@robertquinonez_]

@@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!

[@GreenHulkGarage]

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

[@jamybrandse1587]

Thats why you dont have to modify your ski. This channel shows you not to do that unless your a handy man lol.

[@GreenHulkGarage]

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

[@carloschaqui8234]

GP is flying just to be on a stage 2

[@GreenHulkGarage]

It’s moving for sure

[@shibaelfuturo1033]

That’s is stock charger

[@GreenHulkGarage]

Yes, stock supercharger

[@charlestaylor3434]

Bum deal bro. While I agree that your mods did not cause the ribbon to come loose, the fact that you readily admit that the ensuing damage would not be covered under warranty completely contradicts the common phrase repeated by your father and you. "That Yamaha would have to prove that the failure of any one part was directly caused by an aftermarket modification" Yamaha doesn't have to prove squat! Karen at warranty claims simply has to say WARRANTY COVERAGE IS DENIED! Thank you next customer please.

[@GreenHulkGarage]

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.

[@GreenHulkGarage]

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.

[@charlestaylor3434]

@@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.

[@tim0e]

@@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.

[@russellmarmon2847]

Yamaha "legendary" reliability not good at all along with its weak supercharger and paper thin weak hulls and defective ignition coil wiring, many reasons not buy one if these machines.

[@GreenHulkGarage]

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

[@strobaholic]

I thought Yamahas were immortal 🤔

[@GreenHulkGarage]

Unfortunately not