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2005 EX
12-23-2004, 03:49 PM
My 2005 400ex is hard to start in the cold. Can anyone tell me what to do to fix this? I was thinking it might be the spark plug, maybe need to run a hotter plug, I dont know.....


Please Help!:ermm:

mojoe2878
12-23-2004, 04:06 PM
what pilot jet do you have in there and do you have an aftermarket rev box?

Rico
12-23-2004, 04:26 PM
Put a 42 pilot jet in it and don't use the choke to start it. Pump the gas a few times and hit the starter. Try that about 3-5 times and it'll start.

400EXdude
12-23-2004, 05:26 PM
get used to it...its a honda....lol...just kidding:D but seriously do the thing where you pump the gas a few times and then start it...it works i never thought it would but it does....

2005 EX
12-23-2004, 09:17 PM
Its stock with no aftermarket rev box... So running a different spark plug wont help?

Zeke
12-23-2004, 09:35 PM
does it feel like the crank shaft cant turn or does it seem like not spark. cuz if its the crank not being able to turn then you need to get a thinner oil...like 5w20. but if its the spark then take it out and look at it if its not that then most of the time its the carb like everybody else said.

mojoe2878
12-23-2004, 10:22 PM
since its all stock, then i would do like rico said and go up on the pilot jet to make it easier to start.if the plug is fouled then put a new one in. you can try a hotter plug but it wont really help on the starting.

2005 EX
12-23-2004, 10:58 PM
Thanks to all you guys. I will try that..