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Buell Forum » Old School Buell » Archive through September 14, 2011 » 98 S3 bang...gunshot through carb backfire « Previous Next »

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R850r
Posted on Wednesday, August 31, 2011 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In the process of trying to find out if I had a dead tach, I attempted to start the bike today. She's been running "poorly" the last two days, but she would start and idle.

Today, she cranked and backfired (not a small one, but loud).

Plugs are toast, I checked coil and wires and resistance looks ok. I thought maybe my coil was an issue with the tach.

Trying to get the intake manifold off to check seals. I have them on order along with a carb kit.

Not sure if the boom was carb related or something more serious...thoughts?
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R850r
Posted on Wednesday, August 31, 2011 - 08:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In retrospect, I think my ignition module failed...time to drill out the rivets and see what lurks inside the nose cone.
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Two_seasons
Posted on Wednesday, August 31, 2011 - 11:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Look for chaffed wiring down there.
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R850r
Posted on Thursday, September 01, 2011 - 05:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

well, it looks like I let the smoke out...maybe this is part of the reason for the funny tach

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