Hello.
I would like to know how to check the coil of a 2002 FC550 (part# 250 289-01). When measuring the SEM stator I get all the time the correct values, 3KΩ & 168Ω with cold or warm engine. But the spark is not a fat blue one (new plugs) and starting is not easy. When holding the coil wire 10mm form the cylinder head a spark is jumping the gap but not much more. I checked all the other hardware, valve adjustment, camshaft timing, valve springs etc but that is OK. Wiring is OK, new connectors or cleaned. No electrical starter. The kill switch is fine and disconnecting it does not help either. New rubber intake boot and carburettor cleaned.
The coil with wire has a resistance of 3,3KΩ (to ground) and someone told me it should be about 6KΩ but no way to confirm this. The spark plug cap has a resistance of 5,7KΩ and to be sure I ordered a new one. When starting the engine it tries to fire up but fails then to continue. When after a lot of kicking the engine really starts, I was able to restart it many times quickly.
Regards,
Stephan
I would like to know how to check the coil of a 2002 FC550 (part# 250 289-01). When measuring the SEM stator I get all the time the correct values, 3KΩ & 168Ω with cold or warm engine. But the spark is not a fat blue one (new plugs) and starting is not easy. When holding the coil wire 10mm form the cylinder head a spark is jumping the gap but not much more. I checked all the other hardware, valve adjustment, camshaft timing, valve springs etc but that is OK. Wiring is OK, new connectors or cleaned. No electrical starter. The kill switch is fine and disconnecting it does not help either. New rubber intake boot and carburettor cleaned.
The coil with wire has a resistance of 3,3KΩ (to ground) and someone told me it should be about 6KΩ but no way to confirm this. The spark plug cap has a resistance of 5,7KΩ and to be sure I ordered a new one. When starting the engine it tries to fire up but fails then to continue. When after a lot of kicking the engine really starts, I was able to restart it many times quickly.
Regards,
Stephan