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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Electrical - Battery, Charg Sys, Lights, Switches, Sensors & Guages » Electrical Archives » Archive through October 18, 2007 » Blast won't spark « Previous Next »

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Buelltoys
Posted on Saturday, June 23, 2007 - 07:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I hope someone can help me out!!

My 06 Blast won't spark when I check the harness going into the coil I am getting 12V across two pins but that is it. I believe it is 1 and 3. But I get no spark out of the plug!

My problem started when the bike tipped over when not started. I thought I fouled the plug and changed it but did not work. I get the engine to turn over but no spark. Could it be the bank angle sensor? If so how can I check?

Please help my Uly stator is down and I want to ride my blast but can't because it won't start either!!

Thanks,
Brian
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Sparky
Posted on Sunday, June 24, 2007 - 08:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

12 VDC into the coil is a good thing. What makes the coil produce a spark, however, is this 12 volts grounding through the cam position sensor (what would be points in cars before there were electronic ignitions) when ignition timing wants a spark.

So, there is probably a break (open circuit) in a wire from the cam position sensor to the coil. This path includes the ignition switch, the RUN/OFF switch on the handlebar, probably a Bank Angle Sensor, sidestand switch, clutch switch, neutral switch and the wire harness that connects all this stuff.
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