Question about 1990 Suzuki GSX-R 750 L

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Fuel getting in oil

Ive got an 89 `j` model been stood 2 years,put new battery on fired it up and petrol was peeing out underneath from what i thought was out of airbox overflow.stripped carbs and replaced float seals and fuel tap was stripped and rebuilt with new parts.fired up again and no change but spotted fuel appears to be getting into oil.wnen you look in oillevel glass its full and frothing up any suggestions to my next move would be appreciated.bike was my daily runner until i had knee op and is is proper nice condition so i will do what it takes to get it back on road.

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Check your float height on the carbs. If it's not set correctly it will continue to flow fuel because it hasn't reached it's shut off point. Also I would check the jetting you may be running rich, but if the bike ran fine before it was parked I would say the float is you point of issue.As far as the oil frothing? that doesn't necessarily mean you have fuel in the oil. Air in the system will give you a similar look. If the bike has been sitting for a good period of time, it's common to have the frothing appear until the oil pushes all the air out of the system. If it's fuel, your oil level will be getting higher too, so check for that.

Posted on Jul 01, 2009

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Posted on Jan 02, 2017

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