YTM225 Question

[Rockthunder]

Does anybody know of a website where I can order replacement .25 rings for my YTM225? I have tried bike bandit, dennis kirk, and rocky mountain atv but all they offer is wiseco.

Thanks!

rockthunder@hotmail.com

[TheOlderFox]

If you are looking for Yamaha rings, try your dealer or check with www.parkeryamaha.com

[TimSr]

Bikebandit has Yamaha OEM oversize as well. I did notice that for your model they only list .50mm and 1.0mm oversize though, which makes me ask if you are certain that its .25mm oversize, and if you are certain that you are dealing with an OEM Yamaha piston.

Olderfox is right, though. Any OEM dealer, including Bikebandit, can get them if Yamaha makes them. You might have to make a phone call.

[TRIZTUNES]

HI!!!!!!!


that is because the first over size is .50 from yamaha.

wisco starts at .20. KIT#4312M07050 OLD#4312P2

you are better off going with the wisco they make a 10:1 compresson piston kit
for about $94.50




TRIZTUNES!!!!!!!!!!!!

[TimSr]

HI!!!!!!!
that is because the first over size is .50 from yamaha.

wisco starts at .20. KIT#4312M07050 OLD#4312P2

you are better off going with the wisco they make a 10:1 compresson piston kit
for about $94.50
TRIZTUNES!!!!!!!!!!!!

Actually, the kit you mention is .020" which is also .50mm.

[Rockthunder]

On my piston on the right side near the edge it is stamped 10. I just assumed this meant .010 There is no stamping in the middle. Anyone have any ideas?

[TimSr]

Ive never seen one stamped with an oversize designation in inches. If anything, Id guess it means 1.0mm. One sure way though, is either to measure it with calipers, or get your rings from a dealer and take the piston with you. I learned as a kid that when you need new rings, to always take the piston with you to the shop, if you have any doubts about reading it.