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Didn't know if anyone could clue me in. My 250 isn't as responsive in cold weather as it is in the warmer months. I didn't know if it is just me or similar things are happening to other people. I always warm it up aswell before riding but still lags alittle here and there. I didn't know if it was normal in cold weather or if I would need to get something checked.































Thanks!

 
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just kinda guessing since i dont know bikes very well however i would say vaccum leak leaning out yer air/fuel mixture

 
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my 2000 zx6r was the same way mabye it has something to do with the carbs cause my 06 636 has no prob in cold weather.

 
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Yeah same here, it's got something to do with the CARB, i had the same problem with my 500EX.















I have a fuel inject R6 now.

 
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Try using a lighter weight oil. Warming up the bike is good, however, oil circulation is critical especially in cold weather.

 
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for 1 its the oil u need to run a thinner oil in the winter because it takes longer for the oil to thin in cold temps. I have multiple bikes and cars with and without fuel injection and fuel injection runs a little better in the cold because it resets its self for the colder air