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Thanks for the tips - I'll take better care of the engine from now on. I reassembled the carb, installed a tap, and filled it up with sae30, though I have a lot of trouble reading the dipstick, so I just put in a bit less than a quart. Engine runs - runs well, in fact - no black/grey/brown...

Haha well I guess that makes sense doesn't it... So I got the float/pin off and everything looked really clean. The seat under the pin does look a little worn, but not bad at all. I tested the seal first with gently compressed air. Then I assembled the float, etc. and filled the bowl with...

Ok thanks. I shook the float as soon as I got the carb out and it didn't sound like there was anything in it. I suppose I could fill the bowl with water, close all the holes, and let it sit overnight to see if water gets in. I also sprayed the hell out of the whole carb with carb cleaner and...

Hey everyone - So I know it's been a while but I got the carburetor off today and opened it up, and to my surprise it looks really clean. There's almost no gunk in the bowl, the float looked like new (both components were plastic to my surprise). It seemed to move up and down freely. I'm a bit...

Ok thanks for the help - I'll go buy those things. I don't believe the OHM90 comes with a fuel tap, but I wouldn't know where to find it and can't scrape up a manual online. I've heard that installing one might be another easy solution, however, if the gas is getting in every time I shut off...

OK, great. Thanks a lot for the advice. I've had a feeling the carb has needed a rebuild for a while, so it couldn't hurt. Would you recommend buying a rebuild kit or should I just by some compressed air/carb cleaner?

Hey Everyone, (disclaimer: my mechanic knowledge is very limited - please excuse any stupid remarks or questions) Pretext: I've got a home assembled kart with a a Tecumseh OHM90 9hp. The engine always ran great until this past winter. It was a cold day - about 20 f - so I reversed the cover...

Hey everyone, I'm Zane from Princeton, NJ. I've owned a homemade go kart for about 5 years now. I've spent the year in school out in Colorado, but I'm now back in my home state of NJ for the summer and want to get some help with an engine repair. It's a pleasure to join the community.