Hi,
First thing I do is make sure the stop switch wire or stop tab is removed, to isolate the stop circuit. Ensure you have a operational spark plug. A clean plug doesn't ensure that. (either get a new one or use a plug out of a machine which is working. If you don't have in line spark tester. Use a screw driver or simular metal object and wedge between cylinder cover and cylinder head so to create and earth for the plug. To test the spark plug for spark ensure it is plugged into the h/t boot and the threaded part of the spark plug is contacting the
screw driver. This is so it is away from the spark plug hole to help prevent ignition of any un burnt fuel remaining in the cylinder. To be sure but a rag loosely over the spark plug hole to prevent fuel vapours from escaping when you pull over the engine. If there is still no spark. I would squirt a little crc or simular into the end of the H/T boot and pull the h/t boot of and check to make sure the h/t end coil/clip is contacting the wire inside the h/t and isn't rusty etc.. If that all checks out. I would ensure the coil hasn't come loose ( use can do this if/when you need to remove the stop switch wire off the coil) also check the flywheel for signs of contacting the coil. If that all checks out check a basic flywheel gap, I would use 8'' thou as a start. If that all checks out after that. Replace the coil. They are pretty common, so a s/h may be easy to get hold of.
Hope that makes sense.
Last edited by timtoolman; 31/08/14 12:58 AM.
