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Contacted jiffy (Feldman co.) And they confirmed my engine is an av520 670, 3hp. Set timing and point gap to correct values. Swapped each component out one at a time (checking all gaps each time) and still the same outcome every time. Getting only weak spark. Enough to feel but not enough to...

Sorry, correction My plug is a RJ17LM

Sorry my plug is a RJ17LM

Thank you for the info. My engine is from a 1980s model 30 jiffy ice auger. It is running a rj13y plug. I could not find an engine model number and assumed it was the same as my older 76 auger which has a metal engine tag as the look identical. I will have to track down where to find the engine...

So I broke it all the way back down. Found the timing cam has a crack in it and was installed upside down (I imagine from the person i bought it from trying to get it to run). Cleaned all the rust off the armature the coil goes on. Reinstalled the new coil, condenser and points. Set the point...

Thank you. I appreciate your help.

I replaced the magneto, condenser and points so I did move everything. I reset the point gap to .020. The timing is probably off and I will have to adjust that, But would I still get spark (at the wrong time) if the point gap is set correctly? I am not and that is what I'm trying to figure out.

wasn't trying to argue. you are correct about timing being off. I'm not a motor guy. was just asking a question

Fair enough. I will go back and re read and double check everything. But if the timing is off, wouldn't I still get spark, just at the wrong time?

This model has a keyed cam for the timing. The key has not sheared so the timing should still be good. I have read through this manual and checked every position and gap for this motor and everything is correct. When I hold the plug wire and spin the flywheel, I can feel the spark at both points...

I have an 80's AV520 670-05F 3hp 2cycle vertical shaft engine that does not have spark. I have replaced the coil, condenser, and points. The kill switch is good and actually not connected at the moment. The points and plug are gapped correctly, the flywheel magnets are good, the air gap is fixed...