Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!
Check the timing key, between the flywheel and the crankshaft.When engine backfires, it sometimes shears the key.
If you remove the spark plug and put a teaspoon of fuel direct into the cylinder, reinstall the spark plug, will it fir for a few seconds? If not check the compression.
Plug is being fouled, due to over fueling. Is carburetor float and needle valve controlling the fuel?
Remove the float bowl on carburetr an check the float and needle.
Was that before or after the back fire?
did you check the compression?
Compression at least 80 psi?
How did you check the flywheel key? Did you remove the flywheel?
I think key is sheared!
OK< with everything else correct, it seems that it needs to be checked!
Remove the rocker cover and check the valve clearance. Should be .006 inch. Maybe there is a pushrod off.??
Yes, and then I asked about the valves.
Remove the rocker cover and see if they are working!
Yes, ideal would be .006 inch.
Should need no adjustment, other than idle speed. Is fuel getting to the plug? Plug wet?
Plug is wet. Do you have good spark?
Choke open, not flooding the engine?
I wonder if the new carburetor float is stuck and needle valve is not shutting off the fuel/
The float bowl has to be removed, and float travel has to be checked, and see if it closes the needle valve and shuts off fuel into the bowl. Or pinch off the fuel supply and see f engine will start once the fuel has cleared the cylinder.
Cylinder still flooding?
Is exhaust plugged?
Was compression ever checked? Kawasaki should be over 100 psi.
Makes no sense, if timing is correct (key) valves set, has spark, and compression, and fuel, it should run. I assume fuel is good?
Only thing that has not been checked is the inner gear timing between crankshaft and camshaft!
Engine has to be separated, so you can get to the innards!
OK> It can be difficult! Thanks. Please rate to close the question and get me credit.