I've been looking to do some hopping up on my 450 Foreman. I'm thinking one of those High Performance kits with the pipe, jets, and a Uni filter. I know with these changes, I'll lose some mileage (getting around 24 now), but how much? I know it will depend on how it's ridden, but I'd like a ballpark figure for those that have done it. Most of my riding is done at moderate speeds with very little WOT. Any answers appreciated.

 

I doubt you will lose much mileage unless you jet in to rich(common mistake). Why do you want more power if you do very little riding at wot? The foremans are already rpm limited so top speed will not increase.

 

Hey!

TAlkin about the Rev limiter .. What is the max Rpm of the Foreman !?!? ..

My guess is about 5400 rpm, am I true !?? ...

Wish I had a Tachometer!!

 

I'm wanting the power to turn larger tires in mud/snow and I'd also like to have more midrange for hillclimbs.

 

I totally agree with WISTECH. I might even go so far a saying you might pick up some mileage if you are not in it a lot. If your engine is more efficient you might pick up a bit of mileage. It will depend on how you ride.