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I'm hesitant to put that much money into it, as I only paid $250 for the whole ski and it doesn't have a title.

Pm'ed him. Anything I should be sure to avoid or do when tearing everything down and building everything back up?

Well.......just saw there is oil spray from the drive shaft? I'm guessing the case seal is now blown and bleeding air into the system giving the back fires? With the new settings and new plugs it backfires. Alot. Like its louder than a .22. Time for a rebuild kit or seal kit or? Plugs are...

That was turns from in to out. It still seems like its running lean, but I'll give it a whirl. Many, many, many thanks for the quick replies. Lines are on right. With the low speed at 1 turn out and the high at 1.5 turns out it does the same thing. Always ends its little firing run with a...

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

I'm pretty sure it will work. The only difference between the 650 cdi's and the 700 cdi's, from what I understand, is an increased rev limit from 6500 to 7000. Other than that, I thought all the cdi's were interchangeable. What was your bike doing that makes you think you need a new cdi (I'm...

Starter issue fixed. Comp is 148 and 150 psi. Noticed that when primed the motor will fire 3 or 4 times before quitting. Richened up the low speed 1/2 turn as a result with no luck yet. Ideas anybody?!?!?!?

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...

what he said ^^^^

Yes, the ski is totally stock.

Donka

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

How do you go about putting seafoam in a carb'ed motor? Inject into the choke nipple? Mix with fuel (I'd think that would give a lean condition). Sorry to ask such a simple question, but I've only used it on fuel injected vehicles.

Will try seafoam and report back with picts before and after wash (planning to clean it down and remove fugly decals tonight). Have you ever gone out on the Mississippi? We test and tune a 96 xp and 97 sl1050 out there. Its pretty smooth in the dardeen slough, and plenty of decent waves...

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...