My 89 kawasaki bayou 300,when it gets hot after running about 15 minutes or so,it will shut down and not start back up for a few minutes,untill it cools down some.is it the coil pack?

SOURCE: kawasaki 300 bayou won't rev up.

No guarantees but try this. Pull the slide from the throat of the carb. Now move the clip on the jet needle down one notch. This will richen the low end mix. Two notches may be needed but do one notch at the start.

SOURCE: 1986 Yamaha Radian stops running after 20 minutes

Sounds to me like it could be a few things... pretty interesting that it runs and shuts down...sits for a little while then fires back up. Could be something as simple as a bad ground.. maybe it needs cleaned.. if the ground is making very little contact.. the bike would run bad, and because its direct current it has to flow. The metal in the motor frame etc will hold so much DC current.. but *** soon as it load up the bike would stop sparking. Let it sit for a while, DC trickles into the battery through the slight contact, bike fires back up. OR could be bad venting of your fuel tank, or a partial clog at the pet ****.. the first is pretty easy to check, open your fuel cap and start the bike..if it does the same thing then its not a vent problem. One thing that does happen on the Radian, is the reserve fuel screen inside the tank comes loose, and then everything inside the that has built up over the years either partially clogs the pet ****, or the hose, or both. Take the tank off, pull the pet **** off..if it still has two intact tubes with good screens..you probably don't have any junk in your line..but I would pull the line off and blow through it any way... it could be some type of blockage, when the bike sets the fuel seep through, but when it runs it eventually creates a vaccuum that stops the fuel flow. Those are my two first thoughts... good luck!!

SOURCE: Bayou 300 cranks then stops after a minute

ok buddy to stop the back firing on the carb will be a screw turn this in 1/4 of a turn and try this the mixture screw on pic below

SOURCE: Kawasaki bayou 300 will idle ob but will not rev up

try playing with the mixture screw on the carbs this pic below will help you buddy get back to me if no difference

SOURCE: I have a Kawasaki bayou 220, it will only start in

idle jets are clogged needs to have carb cleaned