Question about 1990 kawasaki ZXR 750
It is starting but now I am finding gas in the oil??? Cleaned the tank and carb, changed plugs and did some wire work, Why and how is gas getting into oil?
Sounds like the float in the carb(s) is stuck. This will allow extra gas into the carb bowl and the excess gas with flow into the cylinders and past the rings, into the crankcase. You will need to reset the float(s) to the proper level.
Posted on Dec 08, 2012
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Posted on Jan 02, 2017
First take that 3 rd carb off, the needle and seat is stuck in the open position, the float may be rubbing on the inside of the float bowl cover, or the float setting is out of adjustment (too rich) either way the fuel to the bowl is not shutting off as it fills, the needle and seat must be forced shut by the gas filling the float chamber raising the float and pushing the needle up into the seat. Sometimes the float has been compromised put it in a cup of gas to ensure it floats and is not a sinker. reassemble and check for the fuel over flow if it still over flows your problem has not been solve this issue must be adressed first for the bike to run right otherwise that one cylinder is going to foul and the bike will never run right.
Posted on Dec 08, 2009
Thats the float valve seals not shutting off, did you clean them & set the float heights?
The overflows from the carb bottoms must also be blocked for the fuel to fill up the carbs which then leaks into the air filter
Check also that the fuel tap turns off when bike is not running
Posted on May 20, 2010
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