Topic: installed some trash looking coils, works excellent

[Redline it]

found these 2 coils for 400f that looked like they were in direct sunlight for 30 yrs, from the thick layer of oxidized plastic. scraped that off to find some part or voltage numbers. #s 2 and 3 coil plug wires were both broken in the last 2 inches from the plug cap ends. like floppy broken except for the core wire is all that held those last 2 inches. i screwed on the 1 known good set of 43 year old plug caps even on the 2 broken ends and because of the position of the  cracks and angles to the plugs the wires make a squared 90' or more angle when fitted. with reluctance saying it's probably not gonna work or even if it was even gonna fire, it fired up and hasn't missed a spark since. it was minutes away from getting the wires cut off and drilled out to be fitted with today's junk quality spark plug wire parts. collecting junk and holding onto it sometimes pays off.

[kerryb]

Good ol' parts from the good ol' days, lets see how long you can keep 'em alive!

[Terry in Australia]

It is amazing, I bought a complete wiring harness for a K1 that also had the coils attached. I needed some coils, so bolted them in, and the bike ran perfectly. 50 years old, and still going strong..........

[CaseyH]

I dragged mine out of a shed where it sat since early 80's
Once it was unstuck all I did was replace the plugs.
It is amazing how robust they are.

[bryanj]

I dont think since i started working on Hondas in the early 70's that i have seen an electrically duff coil, ht leads shortened too much or broken off yes

[Terry in Australia]

Yep, Suzuki two stroke coils were always failing Bryan, the only bad ones I've seen on a Honda were on my GL1200 with over 100,000 miles, the coils got so hot they cracked. The bike would start fine when cold, but just conk out when it got to operating temp, and wouldn't start again until it cooled down. I bought new genuine Honda coils but donated the bike to charity before I had a chance to fit them.

[ekpent]

Yep, Suzuki two stroke coils were always failing Bryan, the only bad ones I've seen on a Honda were on my GL1200 with over 100,000 miles, the coils got so hot they cracked. The bike would start fine when cold, but just conk out when it got to operating temp, and wouldn't start again until it cooled down. I bought new genuine Honda coils but donated the bike to charity before I had a chance to fit them.

+1 on that Terry. Had to replace one on my low mileage 1971 t500 to get it running after I bought it. Reading up its not a rare problem on the Suzies.

[Terry in Australia]

Yep, Suzuki two stroke coils were always failing Bryan, the only bad ones I've seen on a Honda were on my GL1200 with over 100,000 miles, the coils got so hot they cracked. The bike would start fine when cold, but just conk out when it got to operating temp, and wouldn't start again until it cooled down. I bought new genuine Honda coils but donated the bike to charity before I had a chance to fit them.

+1 on that Terry. Had to replace one on my low mileage 1971 t500 to get it running after I bought it. Reading up its not a rare problem on the Suzies.

Yep, same for me on a GT750 Eric, and my little T250 as well. Not sure why, but as soon as I swapped them out, they ran fine again. How are all your GT750's going? I'm still waiting for you to find another "K" model for me?