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Old September 30th, 2011, 09:29 AM   #11
Chuffmonkey
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Name: Alex
Location: Salt Lake City
Join Date: Aug 2011

Motorcycle(s): 2012 Triumph Street Triple R, 2011 250R SE (sold 5/8/13)

Posts: 128
I've never had this on my bike, but have experienced it on a car. For me it was water getting into my distributor - which I'm sure has a different name in the US. It was causing one of my spark plugs to not fire (on a 4 cylinder car). It manifested itself as not not revving beyond about 2K, and sounding rough. Once the car warmed up the water would evaporate and then it would be ok again. WD40 may help.

The distributor is the thing where the spark plug cables attach to on the 'other' end.

You may want to check that your plugs are in tight enough, the spark plug cables are all on tight and there's no way for water to get into your carbs.

You can also get tools that you hold against your spark plug cables that will show you if it's sparking ok. Does it sound like it's missing (should run rough)?
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