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Buell Forum » Old School Buell » M2 Cyclone » Archive through September 26, 2015 » M2 shuts down when hot « Previous Next »

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Nasaproject
Posted on Wednesday, March 25, 2015 - 09:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
My bike just started shutting down when it gets hot. It has a light sputter like its gasping for air or fuel and then shuts down. It won't restart until it cools down.
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Hootowl
Posted on Thursday, March 26, 2015 - 08:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Check continuity in the primary and secondary coil windings when it's hot and exhibiting this symptom.
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Xldevil
Posted on Thursday, March 26, 2015 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Maybe the fuel tank ventilation is clogged.
Open the fuel cap when engine begins to stall
and see if it helps.
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Nasaproject
Posted on Thursday, March 26, 2015 - 04:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Hootowl- Is there a given range I should look for?

Xldevil- I'll try that too, I also have a second gas cap I can swap out and see.
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Hootowl
Posted on Thursday, March 26, 2015 - 04:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
"Is there a given range I should look for?"

Should be pretty much a dead short. Maybe 1-5 ohms. If the coil has a cracked winding, and is opening up when it gets hot, it'll look open. If you're reading KOhms, or MOhms, something is wrong.

The fuel tank vent is a good idea too. That'll starve it for fuel, as would a stuck float.
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Hootowl
Posted on Thursday, March 26, 2015 - 04:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
"I also have a second gas cap I can swap out and see."

Not a gas cap problem, it's the gas tank vent that might be the issue. If the vent is stuck closed, or the vent tube is clogged (damn mud wasps) you'll get a vacuum in the tank, inhibiting fuel flow to the float bowl. Opening up the gas cap relieves the vacuum.
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S1owner
Posted on Thursday, March 26, 2015 - 05:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Sounds dumb but check the kickstand safety switch my S1 would do that I would wait 5-10 min and it would start again
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K12pilot
Posted on Thursday, March 26, 2015 - 09:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Another one for the record books....

Whilst running the tank vent line for the X1 yesterday, something told me to blow in & chk if it was clogged...

Very clogged up by the vent w varnish crud, stiff piece of wire & a shot of carb cleaner & all clear.

just something to keep in mind
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Ceejay
Posted on Friday, March 27, 2015 - 10:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
another spot to check is the VR cable running behind the oil pump. The pump has some pretty sharp stock fittings which over time can rub a spot in the VR cable, once the bike gets warm the oily spooge that's typically around there starts to flow and causes intermittent ground faults...
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Buckley
Posted on Sunday, May 17, 2015 - 08:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I had this happen on two Buell M2s. Both times it was the cam position sensor. Might be worth looking into.
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S2forever
Posted on Saturday, May 23, 2015 - 12:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Pilot jet too rich.
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Mhlunsford
Posted on Sunday, May 24, 2015 - 03:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Timing?
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Mhlunsford
Posted on Sunday, May 24, 2015 - 03:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Voes
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