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I’ve read some threads for no spark issues but I haven’t seen everything addressed yet. So I got no spark and have checked a ton of stuff…here is a quick list.
1. Coil and wires - check fine
2. Pulse Generator - don’t have peak voltage tester but it is throwing off a signal about .2 to .3 volts
3. Stator - throwing off about 95-105 volts when cranking
Spark Plug - good (I’ve checked for spark on known good plug to eliminate the plug and still no spark)
4. Neutral Light - comes on
5. Kill switch - checks out fine and even bypassed it, still no spark.
I performed all the checks in the manual for everything resistance wise and it all checks ok. I checked all the wires from the stator to the CDI back to the coil and so forth and I don’t see any breaks or ground wires. The only wiring issue I can find is a slightly cut wire (blk/red tracer) going into the CDI that could be giving little bit of resistance from where it should be.
here is where I have some questions. I am only getting 7.5-8.5 volts to the coil when cranking (remember I don’t have peak voltage to check it right). I don’t know if that’s enough to fire the coil, I would think it needs to be at least 12 volts.
fuel pump - when I disconnect the leads to the coil and hit the starter I hear the fuel pump click on immediately so it is working. When I have the coil properly connected I don’t hear the fuel pump activate at all when starting.
I’m leaning towards bad CDI but curious if anything else could prevent the engine from producing spark
Thoughts???
1. Coil and wires - check fine
2. Pulse Generator - don’t have peak voltage tester but it is throwing off a signal about .2 to .3 volts
3. Stator - throwing off about 95-105 volts when cranking
Spark Plug - good (I’ve checked for spark on known good plug to eliminate the plug and still no spark)
4. Neutral Light - comes on
5. Kill switch - checks out fine and even bypassed it, still no spark.
I performed all the checks in the manual for everything resistance wise and it all checks ok. I checked all the wires from the stator to the CDI back to the coil and so forth and I don’t see any breaks or ground wires. The only wiring issue I can find is a slightly cut wire (blk/red tracer) going into the CDI that could be giving little bit of resistance from where it should be.
here is where I have some questions. I am only getting 7.5-8.5 volts to the coil when cranking (remember I don’t have peak voltage to check it right). I don’t know if that’s enough to fire the coil, I would think it needs to be at least 12 volts.
fuel pump - when I disconnect the leads to the coil and hit the starter I hear the fuel pump click on immediately so it is working. When I have the coil properly connected I don’t hear the fuel pump activate at all when starting.
I’m leaning towards bad CDI but curious if anything else could prevent the engine from producing spark
Thoughts???
