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81 gs 750 no fire

  • Thread starter Thread starter shopguy
  • Start date Start date
I've done both the 1.5 volt battery test and the screwdriver flick on my bike and both sparked.
I was just looking at my Chilton's manual and the chain drive 650's use a different ignitor and signal generator setup than shafties- for the chain 650's Chilton talks about 80 ohm resistance across EACH signal coil to ground ( it still tests ignitor with 1.5 volt battery ) I'm unclear as to what resistance is correct. You need a 750 owner with same ignition to chime in.

The ignitor obviously needs to be triggered with enough juice or no sparky!
 
ok im stumped short of just replacing everything i dont know what else to do
 
You know your old ignitor was no good (failed Mr. M's 1.5 battery test) but your replacement passes, yet it's not being triggered by signal coils which seem to test out ohm wise at 320. It would be nice if another 81 750 owner could verify that ohm reading of the signal coils.
 
i was going by mr,m specsthat were 250-360ohms asi stated in previous post does this bike have kickstand switch which is no start when down
 
Nope, some bikes had kickstand switch that lit the oil light but it didn't kill ignition. I'd have to bet that this replaced ignitor is faulty- not feeding the signal coils with enough juice for them to "disturb" when rotor tab flies by.

I checked my spare signal coils- measured 315 ohms.
 
probably going to put it back together and sell it tired of fighting with it anybody looking for 1981 gsxe750 with clear title
 
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