Question about 1979 kawasaki Z 650 SR

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Bike coughs and splutters in the rain. Sometimes quits altogether

Had to new coils, leads, caps and plugs also had the timing done. Fuel is flowing fine as well?

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Posted on Jan 02, 2017

ollie reece
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SOURCE: zxr 400 wont start

fuel not getting in the cylinder this could either be the float or mixture screw on the carb is a screw the air mixture screw turn this out 1 whole turn or just fiddle with it until it runs if not buddy get back to me c3568b1.jpg

Posted on Sep 14, 2009

prostreet 55
  • 299 Answers

SOURCE: 1991 KDX 250 uses alot

have u tried a hotter plug it worked on my car, also i add lead substitute to gas .try a performance coil and switch to electronic ignition also i did this to my bike and it ran a lot better.

Posted on Mar 20, 2011

  • 747 Answers


ultrasonic cleaning is only as good as the cleaner it's in, it might loosed the dirt, varnish or sediment but it's still there floating in the solution. Not only that if the solution has been used repeatedly then you will possibly get dirt from someone else problem deposited in yours. Ultrasonic cleaning may be a good thing but the carb still needs to be washed and rinsed in clean fluids.

Another thing did they strip the carb down to do this if not then they dislodged the partial but it's still trapped in the float chamber.

Further by not running smoothly through the rev's it sounds as if you have a fuel starve through out the range which could be improperly adjusted float heights.

I use to hate chasing these problems but solving the problem before it starts is the best way and that can be done with fuel stabilizer in the tank run the engine for a while and then run it dry of gas.

Best of luck with it

Posted on Apr 06, 2011

  • 35 Answers

SOURCE: kawasaki zzr600 1993 it has

carbs need to be pulled and cleaned, they might even need to be rebuilt

Posted on Apr 22, 2011

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1991 KDX 250 uses alot of spark plugs.splutters and bogs down after riding at low rpm. plug comes out wet and black with no spark. new plug fixes problem immediately but happens again after about 5 litres...

have u tried a hotter plug it worked on my car, also i add lead substitute to gas .try a performance coil and switch to electronic ignition also i did this to my bike and it ran a lot better.

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