Same Exact 99Yamaha XL760, Same issue except on the Front Piston. Have the manual, It was good for torque settings, but everything else that made me decide to do it myself came from you, and the effort you spent putting this together. Bottom end was flawless, no point in fixing what was not broken. Had Full Bore do the resleeving, went with Pro-X Pistons, the original pistons are prone to catching a ring on the exhaust, even mine with only 100 hours on the engine. Can't thank you enough. With upgraded pistons, Still was $1800 less than than the shop wanted for the rebuild. Thanks, RED
I'm glad I could help you out a little. My ski has been running pretty much flawless since. Are you deleting the oil injection also? I believe that's what caused my problems.
I've thought about deleting the oil injection, lots of opinions on that. Mine only had 100 hours on this whole thing should not have happened. I think mine failed because of the OEM piston design is what happened. They are a bit different on the Pro-X pistons & sleeves. Suspect mine failed for lack of warm up, gotta run them low and slow until the rings and pistons heat up. However I am going to stop the kids from using Walmart oil gonna use the amsoil from here on out, More expensive and takes planning, but worth it to avoid a repeat of rebuild. Its been fun, but I'm glad it is almost over.
have a 93 wave runner i add a little 2 stroke oil to the gas the 2 tubes going from the oil pump up to the carb drain and often times your running the engine for a minute with no oil in the mix if it's been a day sitting
I have a 97 Blaster 2 which has done the same thing, although i seem to have bad piston slap, did you figure out the cause or is it a common thing on the 760 engines as i see Red Pyrate mentioned further down the comments
Did SBT take that bad piston as an exchange with no fuss? I recall reading on their site that they wouldn't accept a blown piston without charging more. I have a really beat up cylinder and a blown piston that I'm about to exchange and was curious. Thanks for the great video.
Where you at on this? Did you end up sending the cylinders out to Fullbore or had someone do them locally? Just picked up a 98 XL1200 where the front cylinder's piston was scored, previous owner tore it down before i bought it, and now it's going to be fun trying to figure out if it had an air leak from a bad gasket, crank seal or if the oil injection line fell off... No battery in it, I ordered one, so i cant tell how many hours it had on it. I'd like to see how you end up. I'd recommend you doing a leak down test on it before you start it. If its got an air leak, which i think it does by how melted that piston was, you'll be right back at tearing this thing down in no time.
Paul Ostaszewski it's done but I wrecked my motorcycle 22 days ago and am just learning how to walk again so the rebuild video will be a little while before it comes out. I used a Kit from Sbt to rebuild it. Runs good now
I bought a 02 xlt1200 and it's locked up. Fixing to pull it and go through Everything.... For $999 pwcengine has a rebuilt engine with a 2 year no fault warranty. Think that's my plan..
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Same Exact 99Yamaha XL760, Same issue except on the Front Piston. Have the manual, It was good for torque settings, but everything else that made me decide to do it myself came from you, and the effort you spent putting this together. Bottom end was flawless, no point in fixing what was not broken. Had Full Bore do the resleeving, went with Pro-X Pistons, the original pistons are prone to catching a ring on the exhaust, even mine with only 100 hours on the engine. Can't thank you enough. With upgraded pistons, Still was $1800 less than than the shop wanted for the rebuild.
Thanks,
RED
I'm glad I could help you out a little. My ski has been running pretty much flawless since. Are you deleting the oil injection also? I believe that's what caused my problems.
I've thought about deleting the oil injection, lots of opinions on that. Mine only had 100 hours on this whole thing should not have happened. I think mine failed because of the OEM piston design is what happened. They are a bit different on the Pro-X pistons & sleeves. Suspect mine failed for lack of warm up, gotta run them low and slow until the rings and pistons heat up.
However I am going to stop the kids from using Walmart oil gonna use the amsoil from here on out, More expensive and takes planning, but worth it to avoid a repeat of rebuild. Its been fun, but I'm glad it is almost over.
I'm doing my rebuild now and your video has been super helpful
have a 93 wave runner
i add a little 2 stroke oil to the gas the 2 tubes going from the oil pump up to the carb drain and often times your running the engine for a minute with no oil in the mix if it's been a day sitting
Thanks for this!
I have a 97 Blaster 2 which has done the same thing, although i seem to have bad piston slap, did you figure out the cause or is it a common thing on the 760 engines as i see Red Pyrate mentioned further down the comments
Did SBT take that bad piston as an exchange with no fuss? I recall reading on their site that they wouldn't accept a blown piston without charging more. I have a really beat up cylinder and a blown piston that I'm about to exchange and was curious. Thanks for the great video.
I didn't have any problems. The piston wasn't in horrible shape though.
Where you at on this? Did you end up sending the cylinders out to Fullbore or had someone do them locally? Just picked up a 98 XL1200 where the front cylinder's piston was scored, previous owner tore it down before i bought it, and now it's going to be fun trying to figure out if it had an air leak from a bad gasket, crank seal or if the oil injection line fell off... No battery in it, I ordered one, so i cant tell how many hours it had on it. I'd like to see how you end up. I'd recommend you doing a leak down test on it before you start it. If its got an air leak, which i think it does by how melted that piston was, you'll be right back at tearing this thing down in no time.
Paul Ostaszewski it's done but I wrecked my motorcycle 22 days ago and am just learning how to walk again so the rebuild video will be a little while before it comes out. I used a Kit from Sbt to rebuild it. Runs good now
Brett Buckley damn! Hope you have a speedy recovery.
I bought a 02 xlt1200 and it's locked up. Fixing to pull it and go through Everything....
For $999 pwcengine has a rebuilt engine with a 2 year no fault warranty. Think that's my plan..
good video man but please try not so much ""shaky cam" :-)
I have gotten better cameras since then. Thanks for watching.
How did this project turn out. I was in fear of the power valve coming apart and ending up in the bottom of the block.
@@TMAXXDUDE1 it has been running great since.
How did you get the new pistons in the sleeve from the top? Just purchased the exchange kit from SBT and would like to leave the bottom end in the ski
I'm almost positive I squeezed the rings together by hand and slid the top end down onto the pistons
Where/how do you get new sleeves and pistons? I have the same issue. Send pistons and sleeve body to a machinist?
Can they hone the sleeve and repair? Or do you just get new parts?
@@zoidelux I bought a kit from SBT. It comes with new pistons, rings, gaskets, and new sleeves installed in the head. It's an exchange program.
Water leak because of gasket failure?
did you have to bore out new sleeve to fit the piston or they fit without boring?
The kit from SBT had everything I needed. No boaring needed.
@@bucksgarage1 the new sleeve didnt need to be bored at all? Just install and insert piston?
@@rocrfella sbt provided a entire top end cylinders and pistons that matched. If I remember right it was $600
I have the yamaha 2000 gp760 how to reset to code
How do you replace the sleeves?
The top end was a kit that came with the cylinders. I didnt resleeve it.
Where can u order a new engine?
Fasting Fast www.shopsbt.com/jet-skis/jet-ski-engines-crankshafts.html
sbt
Where can i find 2 new engines ? I have 2 yamaha waverunners xl700 and need 2 new engines
Probably tough to find good engines these days. I would think if yours are not rebuildable you would be better off to part the rest out.
I have the yamaha 2000 gp760 how to reset to code
What code do you have?