how do i get it to run cooler

[skoon400ex]

wuts somthing i could do to make my 400ex runs cooler now that the summer heats here it going a little to warm under there to the point where it dont like to start rite back up u got to give it a lil gas and it will pop a couple times before fireing





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2004 400ex
FMF titanium 4 slip exhaust
dyno jet kit
K&N filter with lid on
stage one hot cams
hinson clutch basket and pressure plate and hub
barnet clutches

[2004exrider]

If you havent already put in a #42 pilot jet id suggest doing that to cure the starting problem. Now if your really serious about making it run cooler you can use a Full synthetic 20w50 oil, and hook up a larger oil cooler and tank. Some will say airscoops but i dont really think they make a difference, more of a cosmetic thing.

Jimmy

[skoon400ex]

that wut i was planing on doin was the oil tank or a second oil cooler but somone told me to ceramic coat the header but does that only make it cool faster

[2004exrider]

Ceramic coating the header will make it keep a lot of the heat inside the pipe so iguess it would keep some of the heat away from the engine.

Jimmy

[chaz#32]

engine ice:)

[2004exrider]

and where would he put this engine ice?:macho :p

Jimmy

[chaz#32]

in the radiator duh, jk ha ha o forgot it was a 400ex and i used to have one of those damn thing to :)

[swva400ex]

higher octane fuel + high comp. piston= cooler running

Originally posted by skoon400ex
that wut i was planing on doin was the oil tank or a second oil cooler but somone told me to ceramic coat the header but does that only make it cool faster
I would deff. do that.

[400eXr1d3rZ]

Jet Hot coat the header.

www.jet-hot.com

its 85 dollars for a 400ex header, and i think 25 for the can.

[DieselBoy]

You know, if you're going to modify your cooler...Get a large transmission cooler, this will cool it much better.

http://content.performanceproducts.com/ALL/104636/104636_200_1.jpg

the current oil coolers on these things are a joke.

[gopeddin400EX]

http://www.off-road.com/atv/projects/400ex/coolkit/index.html

Just check that out. thats a GREAT kit and for the price you cant beat it.

[MERC]

Originally posted by 2004exrider
Ceramic coating the header will make it keep a lot of the heat inside the pipe so iguess it would keep some of the heat away from the engine.

Jimmy
also improve scavenging of the cylinder/s. Keeping the heat in the header allows the exhaust speed to remain high.

[nosliw]

anyone here ever monitor oil pressure before and after larger/additional coolers?