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Harley Davidson 1990 sportster running problems?

Starts and goes well untill warm then in top gear the engine starts to cut out.

Broomers
September 2009
Thanks John..just tried putting the choke on but no still cuts out. Reading on some forums the sypmtons also sound like the crank sensor. So im going to have do it by elemination replace the coil regulator and crank sensor.
Thanks for your help.

Broomers
September 2009
Does the engine recover a little if you apply some choke, indicating a fuelling fault? If not, maybe the ignition coils are breaking down due to heat build up?

John
September 2009

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