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Discussion Starter · #1 ·
been working on my 2000 lt with 13,000 miles pulled out t he injector and had them reflow bike idle rough at cold start sputeres and whats to cut off. when she reach temp she idle smooth as putting no sputer nothing. checked all 4 vaccumm lines there all in place can there be another reason for sputtering
 

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Wrencher Extraordinaire
2005 K1200LT
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14,559 Posts
Could be the temp sending unit at the rear of the cylinder head (does not affect the gage reading that is a separate sending unit up by the water pump) it feeds the ECU and if it is not telling the "brain" that the bike is cold you will not get the rich running of the injectors. Just a thought.

Often when this fails it does just the opposite and forces rich all the time making the ECU think the engine is still cold when it is warmed up.
 
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