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Buell Forum » Old School Buell » M2 Cyclone » Archive through January 25, 2012 » Master relay failure? « Previous Next »

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Captainkirk
Posted on Saturday, May 21, 2011 - 03:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The last couple rides, my M2 has been acting a little snarky; it will bog for a second, then backfire out the exhaust and then pick up and go on like nothing's wrong. Today I fired it up, rolled out in the street and it died. Completely. No lights, no start, nothing. I shifted back into neutral, then switched the key OFF-ON, everything came on and she fired right up. I rode 25 miles without a hiccup. When I got home I checked battery terminals, yes, they were tight. Battery was new last spring. I replaced the clutch safety switch last year and checked the sidestand switch at that time; it worked fine.
Could I possibly have a master relay going, or ignition switch problem? I worked the key at least a dozen times after the ride, it seems crisp and works every time. I can hear the relay clicking each time as well. Any ideas?
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Judotrip
Posted on Monday, May 23, 2011 - 05:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Check the coil wire...Sounds alot like mine as it loosened up then fell off on a ride...
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Buell_bert
Posted on Tuesday, May 24, 2011 - 07:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Judo, the coil wire might make it tend to miss and such but the lights and starter would not be affected.
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Judotrip
Posted on Tuesday, May 24, 2011 - 12:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oops.. You are right. Starter and lights are not affected by the coil : )
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Jim2
Posted on Tuesday, May 24, 2011 - 03:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There are two relays on the M2 under the seat pan. One is for the starter, the other for the ignition. Clean the terminal block they plug into and then Replace both relay. Also clean ignition switch with electronics cleaner spray. See if that helps.
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Captainkirk
Posted on Wednesday, May 25, 2011 - 03:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks; I will try that.
Seen a lot of problems in my day, but this is plain weird.
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Captainkirk
Posted on Friday, September 23, 2011 - 08:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Guess I never posted a response to this one.
Pulled all the fuses and cleaned them with contact cleaner. Problem solved.
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Littlebuggles
Posted on Friday, September 23, 2011 - 11:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for that, it's good for the rest of us to know since all of our bikes are getting older.
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