125-200cc WB165 piston and cylinder pics

With 92.4 hours on this top end. I decided MAYBE, it was time to open it up and re-ring it / look things over. I think the longevity of this setup speaks for itself.


I can't believe how great it looks. I mic'd the new ring and old ring. the used ring with over 90 hours was .2 MM thinner than the other. Not bad!

Enjoy...

What pre mix do you use?

dood- the way you hammer on it? id say thats wicked awesome! hows the rod/brg? and clean that sucker first nex time! congrats on the long life! and dont try this many hours with them "other" brands!

And to think I was going to swap mine at around 50 hours ! I wont be now looking at yours.

How many hours are others getting till thinking of a ring change and or piston ?????????

John,
I had 60+ hours on the ring and 110+ hours on the piston when I swapped in a new piston kit for mounting on my new '12. The ring was still good with ~.016" end gap and no sharp edges. The piston had .00225" of gap and the ring groove was still near perfect. At that wear rate I would expect 200 hours per piston. Of course everybody rides different and uses different oils and mix's.

I have also had one rider with pre-mature bore/ring wear. So it is always best to check your top end about every 50 hours. These are custom parts and while the vast majority will get exceptional wear and life, it is better to be safe than sorry. If anyone experiences this kind of early wear please let me know and I will take care of it.

lessee 10k rpm x 60 x 100....that's like only 60,000,000 cycles.

ack! my brain just melted. that's some damn fine products mr. beanz!

Good to know and thanks for sharing Blake.

i want Dr. Beanoil to make my 3hunny into a WB 365 with a speical 32oz flywheel and CR ignition, after stock stuf wears out. could you imagine? i'll just drop the whole bullet off at the shop when i come up to Kalispell ta visit the fam Walt. BA-BANG-BANG-BANG...BAAAARRROOOOOP! *taking off in third with no wheelspin*

40:1 from day one since I've owned it.

Always ran Lucas up to about 25 hours ago
Switched to Amsoil Dominator. Both work great!

No idea... I think they are ok, but maybe I'll have one of my buddies show my how to check??

This bike has roughly 274.4 hours total on it.

That is from the previous owner, and myself. The previous owner wasn't easy on her either I don't think. I've ridden with him, and he isn't afraid of a few downed trees.

He did seem to do that from time to time, much more often early in his riding career...



I got 88 hours on my last ring, piston has 124 hours on it now. These bikes rule!

Later,

How many rear tires do you go through in 92hrs?

WOW, great question!! I have no idea... I could take a stab at it, and say roughly 5-7... Never thought about tire use in terms of "Hours"

I have a new front ready to go on, and I'm not sure I've changed the front since I 165'd it... Maybe once....

LOVE THEM MOTOZ...

I'm not confident on that rear tire estimate BTW... That might be high...

I'm curious why Wally didn't make it a 2 ring piston.

I can't answer that for him, but I have no complaints on how the single ring works / holds up!!