How or what got in it is a mystery to me...Damage seems to be confined to the top of the cyl.'s On the front piston, the damage is worse and created about a 1mm gouge in the cyl. wall the metal bits are tic tac size and seen to be made of hardened metal like a valve would be made of, on the real bad piston you can see the bits melted into the piston. Hmm... What you guys think?
Looks like your piston skirt is busted. Seen rings, skirts, wrist pin bearings and reed valves all go through engines before. Might have to get a new head or mill it. Looks like deep cuts.
Hey, yea seems to be the bearings...took off the head checked the play in the crank and no bearings left think the crank is bad? the rod is warped (not bad) where it connects to the crank ?
Looks like your piston skirt is busted. Seen rings, skirts, wrist pin bearings and reed valves all go through engines before. Might have to get a new head or mill it. Looks like deep cuts.
Bought a new head with pistons, supposed to fit right on to the 650, any idea if I'm gonna starve this thing? Thinking I might need dual intake and dual carbs? and 701 reed's? or will my stock one tuned with carb adustments work ok? Thanks
Here is a pic of what I found when i disassembled a XLT1200 recent acquisition. Waverunner has not run since 2016. Don't know the backstory how the water got in, maybe rolled and continued to run? Crank will not spin for obvious reasons. Cylinders were in great shape.
Few questions,
Is any...
It is a build thread, filled with pictures, my random questions, and hopefully some decent answers, tip, recommendations. I am a newbie to the PWC scene but somewhat of a wrench-turner. Purchased 2x 2003 Yamaha XLT 800's to rebuild as a project. I'll be building the thread as I go, just wanted...
I have a 1998 XL 1200 waverunner and i'm trying to figure out if the motor is a 1200 or a 1200r. I going to set the Popoff pressure on the carbs and the spec pressures are completely different on the two motors.
So I bought these two yamaha gp 800s yesterday for 400 bucks with a double trailer. The guy that I bought them from said he got them from a buddy back in 2013 and he just said they didnt run. I figured what the heck the trailer is worth the 400 to me. The skis are a 1998 and a 2001. Does anyone...
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