i suppose the stock balster engine suffice
it should be on the bottom left side of the frame when you are sitting on the quad. right by the gear shifter.
i had an '03 for a while and i believe it was on the frame near the steering stem on a metal plate snapped to the frame. now i am not totally sure but i think it is also on the bottom of the engine.
buy a Yamaha yz 125 if that's to slow for you
2002
Oil capacity for the gearbox on 2002 Yamaha YZ85 is 500cc, after overhaul 550cc according to my book.
The YZ426 was only made, 2000, 2001, 2002. So it can only be 1 of those 3 years, and 2001's have changes in the frame from 2000, with an aluminum rear sub-frame, 2002 im not quite sure what the difference is. But look at your vin number, and find a yamaha vin decoder and you'll figure it out.
ya
A Yamaha ATV that small is carbureted , not fuel injected.
2002
by what do you mean interference engine?
What is the valve clearance for a 2002 yamaha kodiak 400 4x4?
The 2002 raptor 660 will go 100mph tops.