Seadoo GTX (Cholla Bay Addition) DNF'd Memorial Weekend

Mexico Joe

Cholla Bay 4 Life
Sad news out of Phoenix this week as we report the passing of the PTO cylinder on the Cholla Bay sleigh ride machine. The GF and I went out to Plez on Sunday which surprisingly turned out to NOT have been that bad of an idea as the lake is under these weird Covid rules. Launched the ski out of the N ramp Plez Harbor. Everything sounded decent but that was short lived. Before we even exited the no wake zone the ski was showing signs of a failing cylinder. It had shut off and become really hard to start. Got it started and was able to get it going but something wasn't right and shortly after we came down to an idle in a near cove and the thing just died. No restart. I could tell we lost compression in at least one cylinder. Had to get a TOWBOAT US tow to ramp for a minimum ball kick charge of $200... then dude rubs my face in the shit after he tells me that I could have had a yearly membership and this would be free for $85/year. Get home and sure enough, 140mag(front) and 60psi PTO(back) cylinder... I've had the worst 4 month run of my life. Truck, car, ski... jesus. All my shit is breaking. LOL man... it's tough, this life. Pimping ain't eazy.


 

Petrose

Member
Possibly an oil injector issue. Sometimes the cylinder looks worse but is only aluminum from the piston and can be removed with muriatic acid, hone the cylinder and replace the piston.
 

Mexico Joe

Cholla Bay 4 Life
Possibly an oil injector issue. Sometimes the cylinder looks worse but is only aluminum from the piston and can be removed with muriatic acid, hone the cylinder and replace the piston.
I didn't write the back story because I had already added it to the Seadoo forum and didn't want to re-write it. Maybe I'll just copy paste it. The last day I used the ski back in October in Rocky Point, the PTO carb was leaking gas pretty good. I had completely forgot about it as that was the last day I used the ski last season. When I got everything out last weekend I remembered it was leaking and pulled the carb. One of the four screws that holds the plate on the fuel filter side was missing. I actually had put the screw in my jet ski tool bag last October. I really don't remember which is weird but I bet what happened was when I got back to Phoenix, cleaning out the ski to put it away I found the screw in the bottom and put it in my bag. Regardless, I got everything back together. No leak. Boat started right up. I think it's a combination of that day in October and I had already knew/wanted a top end last summer. The leaking carb definitely created a lean condition. Ski has NEVER had any oiling issues. I have a FSM and religiously make sure my boat is working as should. If I know something needs attention I fix it immediately. I kept the stock Seadoo oil injection system because if you read and aren't a newb it's actually better to leave it hooked up. It's a variable injection system so it's more economical and engineered so that the motor gets exactly what it needs. Too many newbs don't know how to work on their boat so they remove it for pre-mix and then have engine problems far more often from everything I've read in 3 years.

I'll include the seadoo forum link below for more detailed information but basically, the bottom end on this boat seems to be good. Never had oil in cylinder, never had oil flood the rotary valve, crankcase does not leak. Always had the stock oil line feed to the crank case good, no leaks. Oil injection lines were replaced immediately upon purchase of the boat for clear lines to ensure oil is always in the line. Never had air bubbles in the line.


Going to put a top end kit in there and SEEEEND IT!!!!

Just need to figure out if the cylinders need HONED or BORED????!!! That's the million dollar question.
 

brokenwave

Well Known Member
Joe, if there are any vertical lines up and down the bore that catch a finger nail usually means the cylinder needs to be bored.
You should buy a hone (pretty cheap) and run it thru the cylinder a few times to see how it cleans up. After you hone it if there's
still lines present that catch your nail, bore both cylinders out out or put a new sleeve in.
 
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Mexico Joe

Cholla Bay 4 Life
Joe, if there are any vertical lines up and down the bore that catch a finger nail usually means the cylinder needs to be bored.
You should buy a hone (pretty cheap) and run it thru the cylinder a few times to see how it cleans up. After you hone it if there's
still lines present that catch your nail, bore both cylinders out out or put a new sleeve in.

Well I guess I should shamelessly plug my girlfriend here.

Claudia Pena
Parts and Service
Nash Powersports
(602) 973-5111

She's going to get me the top end kit at cost which is quite a bit cheaper than the $265 asking price. A service tech there is going to send my JUGS to his machine guy. Not sure on price yet. Hopefully back on the water for $250 total.

If anyone needs motorcycle/atv parts for almost all major brands, Seadoo, or Can Am UTV parts please contact my girlfriend and tell her that you know me from the forum. She is EXTREMELY knowledgeable and punctual. See what she can save you.
 

CheddarBob

Well Known Member
Forum Supporter
Put a ring on that finger. Gotta like the girl fiend discount soon to be wife. Lol Hey MJ hope she isn’t on this forum.
 
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