05 450r bad cam??

[brando_lucky13]

My old 05 450r seems to be missing half way through the throttle after I had a slip on, hotcams stage 1 cam, and airbox lid removed. The shop re-jetted the bike but still has a bad hesitation. Ran fine prior to this! Any ideas would be great.

[fmftrx300ex]

the shop doesnt have it jetted right take it back or do it yourself up too you

[brando_lucky13]

Maybe I'll try a different shop.. Thanks

[chevys&honda$]

how does it run with the lid on??

[brando_lucky13]

Still ran about the same... if not a little worse!!! Do you know about what size jets it SHOULD have... right now its a 150 main and 1 up from stock on pilot and needle up one from stock? Any help would be great!!

[chevys&honda$]

prob needs a little bigger main jet 160+ but i dont know to much about an 05 im pretty sure 04-05 have different carbs then my 07..I had mine apart probly 5 times before i got it right... one size jet changes alot..

[Sjorge450R]

wow! 150 for a slip on and open lid?


When you buy almost any full system (theres not that much different from a full system head pipe to a stock one) they recommend using a 185 main jet, stock pilot (or up one) and about 2.5 turns out. Also, the HRC needle is a must!!!! My quad ran ok without it, but once i put it in, it was a completly diferent story.

[86250rrider]

i have an 05 ,03 crf cam,slip-on ,open lid,hrc needle,stock pilot,185 MAIN. u need a bigger main for sure !!! the needle as was said above is a big improvement also...no bog or miss whatsoever. hang on ...it will rip;)

[brando_lucky13]

Where should the clips be on the needle?

[86250rrider]

change the main jet first , my needle is in the middle position on mine. the hrc needle is worth the 20 bucks it costs


185 main