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Offline flyingz06

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black carbon deposits around the exhaust tip
« on: June 24, 2013, 06:32:29 pm »
why?  Ive never had a bike do this, but all my bikes have had chrome like tips and I've never noticed it.

Offline w8d4it

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Re: black carbon deposits around the exhaust tip
« Reply #1 on: June 24, 2013, 06:39:02 pm »
Sounds like you are running rich.  Another thought, what grade fuel are you using?
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Offline flyingz06

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Re: black carbon deposits around the exhaust tip
« Reply #2 on: June 25, 2013, 02:12:36 am »
93 octane usually.  Running rich.....could that be me hesitation issue at take off and the hesitation at times while cruising?   I assume dealer can adjust?

Offline w8d4it

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Re: black carbon deposits around the exhaust tip
« Reply #3 on: June 25, 2013, 02:58:13 am »
The Trophy is designed to run on regular, not premium. I had exactly the same problem plus hard starting on my 2011 Thruxton (which also was designed to run on regular) until I stopped using premium and switched to regular. 
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Offline flyingz06

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Re: black carbon deposits around the exhaust tip
« Reply #4 on: June 27, 2013, 12:22:40 am »
hmmmm.  will i mess it up if my next tank i put in the 87 octane?  Cant imagine I would. 

when you said mine did the same.... you referring to carbon deposits only or the hesitation part also?

Offline w8d4it

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Re: black carbon deposits around the exhaust tip
« Reply #5 on: June 27, 2013, 04:55:48 am »
Both. Just start running 87 and see what happens. When I switched I started running either Shell or Chervon religiously and the change was remarkable.  But I imagine any quality regular will do.
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Offline patches

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Re: black carbon deposits around the exhaust tip
« Reply #6 on: June 27, 2013, 06:50:07 am »
I also ran 93 octane in mine for a while (no good reason just ...) and experienced the same "runabilty" issues.  Switched back to regular about a tank or so ago and it does run better.  Some engines designed to run on 87 do actually run worse on 93.  It seems this is one of them.

Offline flyingz06

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Re: black carbon deposits around the exhaust tip
« Reply #7 on: June 28, 2013, 03:40:28 pm »
thanks guys!  I'll try it

 



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