2 Stroke Bottom End Rebuild.

Create New Tag

3/29/2018 10:29 AM

How many hours would you guys say you can go until you rebuild the bottom end on a smoker??


3/29/2018 10:46 AM

I go until theres vertical freeplay in the crank. Top ends every 20 hours helps you notice that. I had my 125 for 100 or so hours before i sold it and never had to do a bottom end after the first time i built it.


3/29/2018 12:31 PM

Depends on how hard you ride the bike


3/29/2018 3:38 PM

As the guys said above, how you ride and take care of it(oil). I just pulled mine out at 82 hours. Felt good but having it rebuilt while fixing my tranny.

If you had to put a number you should start really looking at it 75-100 hours?


3/30/2018 9:58 AM

You should be checking side play too. I remember the limit on my 05 CR250 was .040. I sold it with .034 and no vertical play in the rod.


The older I get, the faster I was.