Jetting Question...

[400exrapes]

I looked up the stock jetting for the 04/05 450r and it seemed very weird compared to my old 400ex cause they showed me lower numbers on the main jet then the 400ex. Can someone tell me what the stock jetting on a 04 450r would be if I was ordering a keihin jet from jetsrus.

[d3ktrix]

118 Main and 48 pilot

[400exrapes]

alright thanks.

[arTuReX]

when i rejetted mine i didn't know it came with 118 so that freaked me out!

[400exrapes]

i dont know what happened but when i took out the main jet there was a 148 in there and i checked the plug it was brown. Lucky for me I have a 150 and 152 cause that was the jetting i needed for the 400ex, but where the hell did you guys get 118 from?

[BlaineKaiser450]

Originally posted by arTuReX
when i rejetted mine i didn't know it came with 118 so that freaked me out! X2 i rejetted between motos at a race and all of my friends were all "WTF?" because thats such a small jet for a 450 haha

[400exrapes]

lol so why do i have a keihin 148 in mine? its real odd but if i've got a 150 i know it will run good.

[d3ktrix]

Originally posted by 400exrapes
lol so why do i have a keihin 148 in mine? its real odd but if i've got a 150 i know it will run good.

Buy the bike used?
Have a shop install engine parts on it?

[400exrapes]

i bought the bike used, and the guy i bought it from worked for honda. But its alright because ive got a 150 and 152, and last time i jetted the 400 the right size for a slip on was a 150, and thats what it will be this time.