Oil

[400exRider123]

Im not sure if its normal or not, the 400ex is my first fourstroke and it looses oil. I cant see it leaking anywhere and i dont knww what happeneing.

andyone who knows what it could be thanks.,

[bozz]

Is it smoking' Might be burning it .

[400exRider123]

I was told that , like i cant tell if its burning it becsuae i usually dont try to lok for that , if that is why what could stop that

and thanks

[04'400ex'er]

You could either be losing it out one of your drain plugs, or the motor is burning it. If so, then you will need to rebuild the engine. Valve guides could be worn, or the piston rings could be worn. Either way you would need a freshen up.

[miller821]

Originally posted by 400exRider123
Im not sure if its normal or not, the 400ex is my first fourstroke and it looses oil. I cant see it leaking anywhere and i dont knww what happeneing.

andyone who knows what it could be thanks.,

Thats what mines doing, after every ride I put about a quart in it... If you can't see it smoking, but your hand behind your pipe and blip the throttle.... When I do that I can see oil on my hand.

[400exRider123]

Yeah ill try that and tell you if mine does, but i dont think that there supposed to be burning the oil like that. like i want to find out what i could do to get it fixed, anyone?

[miller821]

Originally posted by 400exRider123
Yeah ill try that and tell you if mine does, but i dont think that there supposed to be burning the oil like that. like i want to find out what i could do to get it fixed, anyone?

Same cause I don't wanna rebuild it so soon.

[400exRider123]

Yeah i was thinking that, but if i do rebuild it would be a good time to put in a bigger or high compression piston. Im going to look into it and see why its doing this

[400ex28]

get a 3 angle valve job, new valve seals and a JE 10.8:1 piston and whichever cam you preffer or whatever

[400exRider123]

all of what you just said the new piston favle seals and all that , how much would it cost for everything