Posts: 194
Joined: 10/17/2017
Location: Wentzville, MO USA
Picked up a Yz125 a couple weeks ago. Decided to take off the cylinder to see if the "4 hours on fresh rebuild" was true and it actually was. I was shocked. The piston still looks new. But anyway, the cylinder still has the cross hatching. If I throw a new ring on the piston, will I have to hone the cylinder just a little bit and be good, or just not hone it at all?
Posts: 2954
Joined: 10/5/2012
Location: GBR
Just put a new ring in it & let it rip. Do you know what brand of piston it has in it so you know what to buy?
Posts: 1729
Joined: 8/25/2015
Location: Mansfield, OH USA
I think you only hone if the crosshatch is gone. In my experiences, if the cylinder is that worn ill just go ahead and get it replated instead of making the diameter bigger with a hone.
To answer your question, put the ring on and go mam.
2009 Kawasaki KX450F
2009 Kawasaki KX250F
2002 Suzuki GSXR 600
Posts: 194
Joined: 10/17/2017
Location: Wentzville, MO USA
Muscle-Milk-KTM wrote:Just put a new ring in it & let it rip. Do you know what brand of piston it has in it so you know what to buy?
Yes it has a wiseco. I'm a vertex user but the piston looks great still, so I'll just leave it in.
Posts: 840
Joined: 10/20/2009
Location: Mooresville, NC USA
Muscle-Milk-KTM wrote:Just put a new ring in it & let it rip. Do you know what brand of piston it has in it so you know what to buy?
Don't hone it, just deglaze it and you are good to go!
recmx.com
REC MX, JE Pistons, Wiseco, Rusk Racing, Yoshimura, FXR, Art of War, Dubya, Asterisk, CCR Sport, ZMax
Posts: 194
Joined: 10/17/2017
Location: Wentzville, MO USA
Muscle-Milk-KTM wrote:Just put a new ring in it & let it rip. Do you know what brand of piston it has in it so you know what to buy?
I'm reading a bunch of different things on different forums about whether or not to deglaze. How would I know if I need to deglaze or not, or is it a necessity before putting it all back together?
Posts: 522
Joined: 2/17/2017
Location: Ravenna, MI USA
Posts: 194
Joined: 10/17/2017
Location: Wentzville, MO USA
Posts: 194
Joined: 10/17/2017
Location: Wentzville, MO USA
Posts: 522
Joined: 2/17/2017
Location: Ravenna, MI USA
