Maintenance & Technical > KX500 Original

k5 fuel octain

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motovet:
I found a few places where people have talked about what octain to run but I don`t know what, if any mods were done to my bike. Soooooo I guess I am looking for your opinion. I decided it was time to freshen up my ride since I have know idea of it`s history and when I pulled the head I noticed the piston looks like it may be detonating. I always run 91 oct. with kawasaki oil at 32:1 mix, all of the time on this bike is on fast trails and ice riding. The last time it was used was on the ice witch is usually more of a wide open type of ride. I would like to post two pictures of the piston and head but for some reason i can`t make it happen, i tried using the insert image with no luck. If anyone could help me with that also, it would be greatly appreciated. Thank you. it is a 2003

Foxx4Beaver:
you can use this for posting pics....
http://www.kxriders.com/forums/index.php/topic,10040.0.html

are you sure your jetting is adequately set-up for the colder air temps of winter and ice racing/riding?...you may just need to fatten it up a bit.   

Foxx4Beaver:
what year bike do you have?...and do you know your current jetting and ballpark altitude?

motovet:
The bike is a 2003 and i live in wisconsin at about 400 ft.

Candyman:
Jetting?

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