Aight let's hear how many modded ex's are no starting mfrs ?? Redik

[DragonGunner]

Any of you guys running open air boxes ? I have eliminated everything. I am thinking the pilot jet is not enough.. it's a 52.. Going to try a 54... This ***** is just ignorant in the cold.. I run no lid, just a uni and a cover on it..

I run open air box…however in cold winter when the air is much denser I have to put the a lid on with a few 1" holes in it….its just enough to cut down on the air and that way I don't have to re jet for winter months.

[Blodg]

My 416EX with 450R carb and stock 48 pilot starts right up when it's cold out after I give the throttle 3 or 4 pumps. Now since there is no choke it will often stall after a few seconds when it's really cold but the instant I hit the starter again it starts right back up. I may have to do this 2 or 3 times and she is running.

[honda400ex2003]

while mine is often times harder to start in the winter, it is because it is pretty lean. If i put my lid on, that helps a bunch.

I am running a 58 if i recall, but man it has been a long time since ive been in my carb.

its certainly worth getting a few bigger pilots and trying it out. now that it is warmer, it probably wont be a big issue. my 450 carb is super finicky... ive often contemplated just putting my stock one back on and calling it a day, its much easier to tune when the carb is the limiting factor instead of the engine.

steve