possible bad plug wires. When the engine heats up , any wire that is touching a metal surface can melt and a hole develops. Check out the wires. Run the engine and take a spray bottle with some water and spray the water directly on the plug wires, even the boots and look for an arc. Bad plugs may also do this so check those out. If they are old just toss them and buy new ones. They are cheap anyway. Id say that this engine is probably in need of a tune up. Plugs,wires,distributor cap and rotor should probably fix your problem. You can probably purchase all that for under $100. The only other thing I can think of is fuel pressure. When the fuel pump heats up, the pre-filter on it , which has pores in it will expand allowing less fuel to pass if there is any dirt in it.
Bad wire
check spark plugs and wires
The engine
Replace the ignition wires.
driver side near the oil pan, near the rear of the engine. cant miss it.
It isn't a Ford.
A bad spark plug or spark plug wire can cause your Kawasaki engine to miss at high rpm's. A dirty fuel filter can also cause the engine to miss.
Bad plugs, wires, coil pack... A number of things can be wrong
There could be many reasons, a vacuum leak is one possibility.
its not working properly ...should bought a ford
Can be engine miss or broken motor mount.
Causes of a misfire include spark plugs, coils, fuel injector, wiring, computer, or internal engine problems.