My girlfriends 1985 gs 450 lost spark to the left side cylinder at the end of last season. I was able to get it to work for about 15 miles with a coil i had laying around(from a snowmobile I think). then it died again. I figured I burned out this smaller coil and purchased 2 used ones from ebay. tried both of them. no good. with the engine running on the right cylinder if I test the two wires going to the coil, the both have constant power. I was under the impresion one should have constant power and the other should have a pulse to fire the coil. Does anyone know what I should check next? It seems to be electronic ignition and not points, but I am kinda guessing. Any help would be great! thanks guys. captcaveman30
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The next two things I'd check are the ignighter and signal generator. The Clymer Manual has the proper testing procedures. -
coil
so put the known good coil on the the left side, still no fire then check what snak says, never put a coil on any electronic system if the ohms are not in the same range, you may have ruined the ignition system by doing this!!!!Comment
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Watch the connecters for the coils. Beleive it or not, my bike had a different connecter for each side. I was lucky and had a spare set of coils so I could test with a replacement coil.Comment
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coils
color makes no difference, put power to power and signal to signal, l/r makes no differenceComment
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It wasn't the color...it was the plug. Each side had a specific connector so that they couldn't be reversed.Comment
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coil
spad connectors and a short piece of wire problem solved, cost .50$ any thing can be done to save time and moneyComment
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thanks for advice, HOW do I check the ignitor though? thanks guys!Comment
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I have it narrowed down to the ignitor. Anyone happen to have one for sale? ThanksComment
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Ebay is a good source. I got mine for $20.Comment
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