HRC cap???

[woodsman250r]

I had a question that is probaly pretty stupid but I'll ask anyways. I was wondering what would be a good jet size to go with if i put on an HRC cap with the airbox lid on and everything still stock. I ride XC in Ohio. Or would I just be wasting money putting this on my stock exhaust?

[emaxxjeremy]

i dont think you will need to rejet with only the end cap, and a closed air box. the end cap doesnt really increase flow that much by itself

[MAD450r]

But the hrc kit comes with a 185 main, and I beleive 52 slow jet as wlel as a needle. I'd got to about 155-160 myself with just the hrc airbox lid and end cap.

Again thats my opinion not saying its the best setup.

[Jersey450R]

my buddy put the HRC end cap and put a 125 main in his and it runs perfect.

[MAD450r]

If he opens the airbox it'll need to go up some.