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My motor is a built 61x. I recently bought an tbm AM flywheel. So I purchased a 62t stator off eBay that was rebuilt. The stator has no timing mark as it had been sand blasted off. I've study pictures and tried my best to align the timing from the pictures. It runs, starts easily. Just it seems...

I'm building my SN the tray is completely gutted. What kind of tubing do I use and what about the ends. I'm wanting to cap it off for future use. Sent from my iPhone using Tapatalk

Finally built the motor today. About 2 years ago I built a 650/701 for it. Last year bc of a bad crank seal. It went into a free rev and tore apart a piston. I just put together a 61x using my cylinders. It is bored .5mm. Tomorrow I will start on the ski. Defoam tray Footholds Add drains...

Im getting my SN ready for the season. I was curious on any advice for the best footholds to buy and installation advice. Sent from my iPhone using Tapatalk

Decided to check my compression today (160/160). After words went to start and it pegged wide open. I pulled both plug wires immediately with hesitation. Checked carb butterfly it was closed. So started it again without air filter so I could put my hand over the carb. It started and idled but...

I have a 90 superjet with 650/61x, westcoast head and b pipe. I just installed a flow control valve in hopes of finding a solution to my ski not wanting to start easily in the water after runs. I'm running dual cooling, one from head to pisser, other from head to top of b pipe the out to a T...

I have been off and on chasing this problem. It's very annoying ski is a blast to ride. I have a 90 superjet with 6m6 bottom 61x top bored .5 over. Westcoast head, b pipe, dual cooling. It gets water (not a lot) in the cylinders at idle. I have replaced head gasket, and exhaust gasket. Checked...

I have a 6m6 bored and running .5mm over 701 pistons. Been having water getting into motor after shut off. Hard to start back up. Have not done a leak down test yet bit can I run a 701 head gasket to seal the larger bore. I have what seems to be a blown head gasket (second one). I was also...

Been fighting this problem for a while. I have took apart and cleaned the s/s switch. I've ohmed it back to ebox it seems fine. I just replaced my cdi box with an 61x. Here's what odd guys. It will not start unless lanyard is pulled. But will not shut off from lanyard nor stop switch. What is it...

Alright guys long story short I orders the standard bore size piston set and not it! The old pistons say 0.50mm and 635PS below it. I know now that is bored over. Is it bored .50mm over because it was a HUGE difference. Its a 90 superjet 6m6 motor (case). Need help want to be back on the...

I have a 1990 superjet 650. I got it over the winter from an older guy who hadit, not ran it for 2 years. It has a Factory B pipe, 44mm mikuni, westcoast head, aftermarket prop skid plate and a intake scoop style grate, and he told me it was bored over (dont know really believe him you never...