450

I’m looking for a new left side case for my 2017 yz450f case. Anybody got one they can sell me?

If I plan to lap valves myself(stainless steel vavles) is it required to still take my head into a machine shop to get vavle job? Is vavle job just them re-cutting the seat for new valves and installing them? Plan was to get head resurfaced(if its needed) and lap the vavles myself, since it...

So I'm currently shopping for new dirt bike; but I'm at a stand still on which model I want.. Here's the scenario ; I don't track ride, never actually but am considering...but for now I just trail ride with my boys...we live around a bunch of dirt roads and tons of land so we do pulls here and...

Hey everybody. Me again. This time i'm wondering how to tell if your Piston and Rings are bad. This is a 2008 Crf450r. Got any answers? Thanks!