Question about 1990 kawasaki ZXR 750

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1990 zx 7 sat for years. now cleaned everything out and I am getting gas in my oil? Any suggestions?

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?

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  • kawasaki Master
  • 448 Answers

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

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

DoubleClutch
  • 376 Answers

SOURCE: 2000 Vulcan Nomad 1500 FI - Bike was sitting for 6

You need to remove the carbs and dismantle them completly and adjust them to spec. Also change the fuel filter.

Posted on Oct 28, 2009

  • 563 Answers

SOURCE: 2004 125 klx kawasaki

The jet valve in the carb may be blocked. Or your carb dismantling job was not as good.

Posted on Oct 29, 2009

  • 1129 Answers

SOURCE: Aquired a 1985 gpz600r cleaned carbs new fuel

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

  • 440 Answers

SOURCE: Fuel leaking from air box after shutting down

Hi
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

Ride Safe
Bike-Doc

Posted on May 20, 2010

  • 8 Answers

SOURCE: sat for 5 years cleaned

make sure u have the right compression and after 5 years of not kicking it a 300 is probably pretty tough to kick. but u should be ok

Posted on Mar 29, 2011

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