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Hey guys, First off, thanks in advance if you read this novel: '90 superjet 650. When I picked it up for 250 off of craig's list it fired right up and ran. Brought it down to the river and it ran to a peak of about 25mph. It was coughing and sounded like crap. Took it home and replaced all...

I've got a sickly superjet that is misfiring and putting exhaust gas in the engine compartment. I've already replaced all intake gaskets and I'm going to replace all the exhaust gaskets this weekend. Anything else that could cause this? On a side note, what do you guys think a running 650 is...

Can anybody tell me which fuel lines go where (tank to carb) on a 90 superjet 650? Not sure if they're hooked up right and I can't find a 650 sj manual. Thanks

So last summer I took the 90 superjet 650 out to the river and it spit and spat when it ran so I put it away for the season. This year I rebuilt the carb and while the carb was off I noticed that the gasket above the reed was busted. I took apart everything on the intake side, cleaned it all...

Took the 90 sn out on the mississippi saturday. The good news is that the bike doesn't leak at ALL. The bad news is that it doesn't run too well. The only way to start it in the water is to prime 3-4 times, hold WOT, and then crank. It will then sputter to life. It won't idle. When it is...

I didn't see this in the tech section, and I'm sure all of you owners already have it, but just in case.... http://www.rpmfactor.com/motorzone/service_manual_SuperJet.pdf

Hello everybody. I just picked up my first stand up and am extremely excited! The good: paid $200 bone stock 90 sj 650 that compression tested 140 and 145. hull is in pretty good shape bike ran and didn't leak water. The bad: dirty as hell, but that really isn't something I'm worried about...