Hi,

I just bought some new rims and tires for my yfz 450.
They are an inch smaller than stock in the front and back.
I tend to hit the rev limitor in 1st to 4th gear.
I was wondering what would fix this problem and not cost me an arm and a leg.

please email me at joshspies@hotmail.com

Thanks, Josh  

the smaller tires will cause it to turn faster.

the rev limiter is programmed into the cdi box.

you'll need to buy an aftermarket cdi with a higher rev limiter.
however there are some are offer one that is programmable. so you can set the rev limiter where you want it.  they arwe a bit harder than if you just bought one with a higher rev limiter and just plugged it up. but the advantage with a programmable cdi is that you can tune the advance curve and get better performance via your own custom adjustments.

check with John at www.rjatv.com

he can get you what you need at an awesome price!!!