Scott Clark

Hi i have a 89 xr3i cab that first of all i had trouble starting when warm now it won't even start cold ive check the pump all seems good ive checked and there is no spark at the plugs could anyone help before i start putting on new bits.

haz87

You just need to work backwards. Is there spark at the distributor cap?
Take the king lead off and check if that is sparking to earth. If it does, then the coil is fine, and the fault lie at the cap/distributor (the ignition modules love to die - and the caps/rotor need to be clean internally)

If the kind leads doesnt spark - then its potential coil or col wiring. Again, easily checked with a basic multimeter

Scott Clark

Thanks for your help i changed the module and she is running great.