Wiseco Pro-Lite piston on YZ125???

[AGrayson84]

Hey everyone, I'm about to order a new 56mm piston (my jug is already bored, plated, and honed for this size) for my '94 YZ 125 and I came across this piston:



[Only registered can see links. ]

Are they just using a generic picture, or does this piston really look like this?? The past 2 pistons I ordered had a much shorter skirt and only one ring... I've never seen a dual-ring 2-stroke piston. Any feedback on this please???? Thanks!

[06yzrider]

That is just a generic picture.

When I did my topend the parts dude at the Yamaha shop actually ordered me the wrong piston (yz 250 piston, exactly like the one in your pic), it had 2 rings.

I returned it, he then ordered me the right (yz 125) piston, and it was the single ring.

As far as Wiseco Pro Lites... They're probably the best aftermarket piston out there, you really can't go wrong with them. Just be SURE to break them in properly and not hit high revs without letting them warm up first, because they will very slightly expand to fit the bore, but too much cold reving will cause it to become too large.

Also, that kit you're looking at does not come with gaskets or a bearing (from what I can see). So I would honestly save yourself the trouble and just order straight from the Wiseco site... this kit is the one you need: [Only registered can see links. ]

[06yzrider]

Scratch that...

this is the full kit: [Only registered can see links. ]