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binegar
09-16-2009, 06:13 PM
What is the stock main jet for an o5 450R

BlaineKaiser450
09-16-2009, 07:13 PM
118

09-16-2009, 09:55 PM
It baffles me still how stock is 118 then the HRC is 185?! Jet kits start at like 180 or something? How is the jump that big are they super lean or just really corked up that much?

atv fan 28
09-16-2009, 10:01 PM
Originally posted by FlewByU352
It baffles me still how stock is 118 then the HRC is 185?! Jet kits start at like 180 or something? How is the jump that big are they super lean or just really corked up that much? i know what you mean! my 07 had a 120 stock, with the HRC kit it went up to a 162. since i added a slip-on im up to 170!

maticus
09-17-2009, 09:59 AM
Originally posted by FlewByU352
It baffles me still how stock is 118 then the HRC is 185?! Jet kits start at like 180 or something? How is the jump that big are they super lean or just really corked up that much?

BOTH! LOL

09-17-2009, 05:41 PM
I'm so SOL when modding this thing. I know just about all there is to know about the 400ex. I've rebuilt several motors from top to bottom assembling them. I know what jets are required for what mods and all that. This 450r is a whole new thing to me. I need a crash course on changing the oil, transmission fluid, radiator fluid, jetting... i've been doing some searches already. 1st in the family to step up the game and get a 450.