05 Hard starting when cold????

[Pred_003]

Got a question... I bought a used 05 450... It starts kinda hard when it's cold but then first kick after its' been ridden.... Also It likes to back fire a few times then about 2 or 3 kicks later it fires?? Could this be a jetting issue.. It came with a full sparks exhaust, aluminum air box and sparks foam filter... Any help is apprecieated... thanks

[maticus]

mine is the same way when its super cold takes forever to start but is fine once it has. alittle trick i did at a winter race was put a heater by my engine for a few minutes then it was cake.

[NJ450rider]

Hah just make sure the choke is on. My 05 R is temprimental in the cold as well. Wont start at all unless the choke is on.

[bloodmoney23]

its just the nature of the beast. put choke on, hold in hot start and kick......should start first kick.

[Pred_003]

What would they have changed from 04 to 05 that makes this happen??? My 04 starts and runs like a champ no matter the temp?!

[400exrider707]

Originally posted by Pred_003
What would they have changed from 04 to 05 that makes this happen??? My 04 starts and runs like a champ no matter the temp?!

It's all in the jetting and valve adjustments. Sometimes with the valves slightly out, they are a bear to start, this is only amplified by the cold weather.

[Pred_003]

Thanks

[koh0001]

Your intake valves could be getting tight, And you should have a 45 poilt jet, If you go up to a 48 poilt jet it will help ya on cold starts. 50 if you have some motor work.

[turbo j]

I replaced my stock NGK plug with a new but same plug and it made cold starts much easier. Mine is an 04. By cold start I mean below 25F.