Maintenance & Technical > KX100 / KX85 / KX80 / KX65 / KX60

running vp u4.4 racing fuel in kx60?

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don46:
What I said is SOME of their fuels are $25 per gallon, I don't remember about the 4.4, I didn't like it so I don't use it.

Hillclimb#42:
c12 is a direct replacement for pump gas. Its good fuel, and will make your bike run well. It will not have the poor shelf life of pump gas. U4.4 is oxygenated fuel and will perform a bit better, but not likely worth your time and money, to play ride. You will have to re-jet and oxygenated fuels are high maintenance because the oxygenated ingredients evaporate quickly. Look into the vforce reeds, they help alot with performance, and also do your homework on jetting correctly for conditions. look at the pro circuit website and find the jetting recommendations. As long as you are stock compression and pump gas, I have found their set-up to be very close. tuning does alot for performance. gearing also makes huge changes to the feel of your bike.

RoostDaddy:
I wouldnt use an oxygenated fuel if I were you.  I dont think you have a real need for it.  What I would look into is the C10.  Its a little more like a high octane pump gas.  The C12 is a good all-around fuel, but I still dont think you would need that in  a KX60.

don46:
I also don't think you have enough motor to run straight C-12, if you don't have the compression it will run worse than with pump gas. Hillclimb42 is right some of these gases are very tempremental, if you leave them in your tank they go bad, you need to drain every time and store in a metal sealed container. they will go bad in plastic cans as well, I store all my race gases in Metal Jerry cans, do you know how hard it is to find NEW metal jerry cans with a metal lid. I have heard ( not personell experience) that the u4.4 will evaporate and leave solid particles in your carb, then forcing you to clean the carb.

chris-mets:
I would love if I could make high compression mods for my kx60 but no one really cares about the little bikes with those mods.

So should I get c10 or c12? They are both non-oxygenated fuels but c12 is leaded and c10 is unleaded. I am liking the c12 because of the way higher octane. I just looked into prices and for a 5 gallon pail of c10 is $95 and its the same for c12. That is around $19 per gallon. Am I better just doing other upgrades instead and sticking with super 93 octane gas and just buying belray h1r?

Thanks
Chris

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