1981 SEM ignition

Just restored a 1981 430WR...ignition was sent to Vance Smith and re-wired checked out...motor completely re-built...bike started and ran for 5 mins...let cool down for break in process, now no spark at all...any ideas? If SEM is shot, would you replace with new PVL or Moto-plat?

Are you sure there is absolutely no spark? I would check the flywheel key first. I had one break on the SEM on my '82 250WR and spark was hard to see until fixed and timing was right. For '82 model year 430WR has Motoplat.

Beckreit........neat non-husky in the pic. Just curious where you got it. I foolishly sold mine about 10 yrs ago and I'm curious about where it might be. I heard that it's in the Primm collection, but I can't verify.

??? change yor spark-plug ! ? (NOS = NGK B8ES ! )

79 C&J XR 500 - built 6 years ago...most fun m/c that I have ever owned.

Just a thought - it's tough to see those sparks in almost any light. I've been fooled many times. Darken the garage a bit and have somebody help you. Let them kick it while you watch, and make sure the plug is WELL grounded to the engine for the test.

you were correct sir...broken key....working on timing the SEM...strange.

Most likely flywheel was not tightened correctly when ignition was reassembled.