2007年7月7日 · I could find YZ 425 or an IT 425 but neither of those are street legal. Is it blue or yellow, IT's were blue and YZ's were yellow around that time. Both the IT and YZ are 2 strokes.

Yamaha YZ model information - for YZ100, YZ125, YZ175, YZ250, YZ400 and YZ465

Yamaha's advanced, liquid-cooled 125cc two-stroke engine provides impressive acceleration, thrilling mid- to high-rpm power, along with supreme usability.

I believe the 425 is a 465 cylinder and piston mated to a 400 crank. If you measure the piston and cylinder you should easily be able to source the correct piston for that vintage from Wiseco or WPS. The YZ never came in 425 so compare what you have to a 465 YZ. You have some measuring and homework to do!

Up until 2009, the YZ450F was still carbureted, but managed to win AMA Supercross and Motocross World Championship titles among a rapidly advancing field of fuel-injected 4-strokes in an impressive show of performance. However, these …

2003年12月24日 · the it/yz 465 and 490 are so close that a lot of the parts are directly interchangeable. the seal you are talking about should fit quite a few different models. the 465 should be a 5 speed and the 490 should be a 4 speed but the transmisions will swap out.

2009年11月30日 · YZ-F & YZ. Yz425f. Jump to Latest 4.5K views 8 replies 7 participants last post by gpaddict Feb 10, 2011. S. Scorpio ...

2009年9月13日 · Recently picked up IT425, motor excites me chassis doesn't. Now a 2001 YZ125 has popped up very cheap no motor. Seems like a no brainer. Should I or shouldn't I?

2001年3月9日 · Forloop is right. I have both and they are very different. They each have a style of riding they like. Need more info in order to help you out. yzernie