I was planning on running synthetic oil after my warranty ran out... 5 more months, the guys at the dealer said dont do it ebcause of the cluth and the clutch is a wet cluth so it uses the oil and that if i use sythetic it might slip... what do youguysdo?

 

O sorry this is for the KFX400 and the 660R, will be running both on the sythetic... we are runnign the honda foreman and the polaris 400 on them and they are having no problems... but they dont have clutchs... hmmm

 

I have read that there are advantages and disadvantages to both petrolium and synthetic oils. So, I run Honda HP4M Synthetic/Petrolium Blend with Moly. THE BEST OF BOTH WORLDS!! But, can't be used in an autoclutch bike.

 

Use amsoil....simply the best oil , grease, 2 stroke oil out there... [img]i/expressions/face-icon-small-wink.gif[/img] amsoil

 

Amsoil!! Had it it my 5sp Eiger for last 800 miles, no problems at all. The fan would run every once in a while during break in with dino oil in 40 deg weather. I left it sit for 45 min in 80 deg heat with Amsoil in it before the fan came on. I use Amsoil in everything.

03 Eiger 5sp 4x4 green

 

Look for JASO MA rating on motorcycle specific synthetic oil to be sure it will work with the wet clutch. In general as of very recent, due to the latest automotive oil standards, automotive oil is not good for ATV/Motorcycle applications.

 

amen, only the best...

 

amsoil makes many differnt synthetic oils... is there any certain kind that i should be using? in my garage weve got NAPA sythetic 5w-30 (or 40 i dont remeber) maximum performance and castrol sytheitc blend.

 

I wouldn't use the 2000 series amsoil, it is rated JASO MB which has very low friction that might affect your clutch.

 

im using this synthetic oil for atvs that has wet clutch additives. i got it at farm and fleet. it works good.