Question about 1985 Yamaha XJ 700 X Maxim

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I have a 1992 Suzuki GSX-R 750, that wont start

Its getting fuel, it has spark, and it sometimes sounds like it wants to fire but doesnt. Ive gone through the whole bike and checked pretty much everything and nothing seems to be wrong. it also backfires through the exhaust, the engine was just rebuilt and when i got it back it ran, but when i hit the throttle it would rev up and the rpms wouldnt drop. i pulled the plugs after trying to start it and its flooded, i put new plugs in it, checked the fireing order and its all good. ive checked everything short of pulling the carbs apart, maybe a float is sticking? not sure, but any advice would be apreciated.

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It is in the carbs, A bike will act like that when it needs to be jetted, most jets are not adj, but whoever built the bike, must have messed with the carbs, you can go back to factory settings, which is about 1 1/4 turns out, and try it, you might need to get new jets, you might want to try dyno jet kit, they are adj and work great.. I had to do my bike, the exhaust was burning my eyes, backfired, wouldn't run, factory jets didn't work. But I found a dyno jet kit on ebay, and it works great. But before you take the carbs off, take a piece of heavy paper and cut the air intake in half with the paper to see what it does, then cut by 1/3, then 1/4, just to see if the intake is messing with you. Check it out, hope it helps.

Posted on May 09, 2010

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Check ur compes if that is not it it could be ur key switch

Posted on Jun 24, 2013

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