440ex runniog hot???

[bjg696]

Does anybody know what a stock 400 oil temp is supposed to run? Or does anybody know what there quad runs with a 440 kit as far as oil temp goes?

[Bridgewater]

i do not know alot on this topic but i will say this isnt uncomin
ive heard of many 400ex with 440kits run very very hot and get hot very fast.

just letting u know its not uncomin

[bjg696]

Is comin to run so hot the clutch slips?

[REDRIDDER]

Try running a synthetic oil like Pro Honda HP4 20w-50 and see how this works.

[bjg696]

Thats what oil i am running it now...Would the carb running real lean be making it run hot?

[REDRIDDER]

12.5:1 are you running race fuel I hope? Also your head is shaved, I would assume that would bump up the compression ratio a little higher than 12.5:1. I know that you have a Wiseco piston that's 12.5:1 but with the head being shaved it would bump compression up and then what it be? Anyways my point is that if your not all ready running a race fuel or running to low of an octane this is were some extra heat could come from.Oh yeah jetting is another big factor as well, but I'm no jetting expert so tell us what your running for jets now and someone will chime in and help you out good luck.

[leasureryan]

I'm pretty good at jetting......let's hear it...list of mods and current jet sizes.

[bjg696]

Well my list of mods are below... But as far as jetting i have a 175 main, 42 pilot, needle in the 3rd or middle position. When you start it up the throttle is very hard to push. Plus the plug is running real greyish white lookn. What do you suggest??? need help asap thanks