1lo620 Posted June 2, 2022 Report Share Posted June 2, 2022 So here I am again. I once had a good running 620 with an L18 Petronix ignion. The L18 blew up. So I had a rebuilt L20B installed. I got it running was running a little rough but running and idling. Then as if someone flip off a switch it just stopped running. Coil seems fine ignition seems fine. Only thing I can think of is I tried my 6month old Petronix. Which was fine before I swapped engines. I am not a electrical guy or an overall great mechanic. Any ideas I included pics of the wiring for the Petronix. Quote Link to comment
datzenmike Posted June 2, 2022 Report Share Posted June 2, 2022 Pull a plug wire, stick a plug in the end and lay on a grounded surface like the valve cover. Turn engine over with the starter. GOT SPARK?????? YES.... not ignition NO..... ignition problem .....and how in the wide wide world of sports can you blow up an L18????? Quote Link to comment
1lo620 Posted June 2, 2022 Author Report Share Posted June 2, 2022 I will try that. Not sure how I did it but I did. Was driving home one day from work a d the Good Old L18 just went boom. Was 15 years old...lol Quote Link to comment
datzenmike Posted June 2, 2022 Report Share Posted June 2, 2022 Water under the bridge. Check for spark and we'll go from there. Quote Link to comment
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