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Maintaing the new 400ex??
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Posted by: 250exmaster

I have just purchased a 400ex and i will get it thursday. SO i wanna babey this thing. So What oil should i use? I heard of mobil1 motorcycle oil. 10w-30? 10w-40? what would be the best oil. IM not very worried about the price.

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I heard to get a P-brake blockoff right away to save the brakes is this true?

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Should i use a different high performance spark plug?

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How much should i go easy on it to break it in.

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Should i rejet for a k&n,,, should i get a K&N or other?

ive done a search and these are things i havent found much info one so please help me out.

RAlph

Posted by: Quadfather

I would change the oil after the first ten hours. Use regular GN4 for the break in. Replace it with the same after that, then you could switch to Mobil! after that.

Take off the parking break on the way home, or as soon as you get there.

Use the stock plug, or bump up to a 9 if you ride wide open a lot.

Ride it for 15-20 minutes, avoiding full throttle, but varying rpms, let it cool for an hour. Do that about 4-5 times. Avoid extended full throttle for the first tank of gas. Then beat the snot out of it.

Run a K&N or a Uni.

Posted by: JOEX

So What oil should i use? I heard of mobil1 motorcycle oil. 10w-30? 10w-40? what would be the best oil. IM not very worried about the price.

20w-50

I heard to get a P-brake blockoff right away to save the brakes is this true?

Sometimes. I have an '01 and still have the PB installed and the rear pads are still fine. But I will still get a block off.

Should i use a different high performance spark plug?

Not neccessary

How much should i go easy on it to break it in.

Don't go WOT until it is fully broke in.

Should i rejet for a k&n,,, should i get a K&N or other?

Rejet when you get a filter. K&N for regular conditions...UNI for dusty conditions.

All the answers I posted I picked up on this site.

Good luck and enjoy the 400,

Joe

Posted by: 250exmaster

thx
BUMP

Posted by:

any other opinions

Posted by: R-Crazy

have fun!!!!!!!!!!!!

:devil

dave

Posted by: 440

avoid trees, deep holes, mudd, or other quads front end and u should be good

Posted by: -=Skot=-

i use bell ray oil