Would you replate or run this cylinder?

Infinite27
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4
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5/30/2026
Location
Commerce Township, MI US
42574258.jpg?VersionId=zKIc1qmV4255.jpg?VersionId=a4254.jpg?VersionId=V9j4253424842614259.jpg?VersionId=42624260
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Infinite27
Posts
4
Joined
5/30/2026
Location
Commerce Township, MI US
5/30/2026 6:05pm

Its about the size of a pin head or needle tip. Sometimes I catch my nail sometimes not. Can I get away with one more top end change? I dont see anything peeling or flaking around it and the piston and ring that came off looked good to signs of damage that I can see. 

What do you do you guys think?

05 RM125 🤙🤙

Infinite27
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5/30/2026
Location
Commerce Township, MI US
5/30/2026 6:13pm

Its on the bottom side of the cylinder

Factor E
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9/22/2011
Location
So Cal, CA US
5/30/2026 6:49pm

How many hrs on it?

 

5/30/2026 7:16pm
Infinite27 wrote:
Its about the size of a pin head or needle tip. Sometimes I catch my nail sometimes not. Can I get away with one more top...

Its about the size of a pin head or needle tip. Sometimes I catch my nail sometimes not. Can I get away with one more top end change? I dont see anything peeling or flaking around it and the piston and ring that came off looked good to signs of damage that I can see. 

What do you do you guys think?

05 RM125 🤙🤙

It's above the rings, so won't affect sealing, as long it doesn't mark the piston it should be good.

1

The Shop

Infinite27
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4
Joined
5/30/2026
Location
Commerce Township, MI US
5/30/2026 9:01pm

Unknown hours, bought from original owner who never replaced the top end. That pic is the original piston. He only trail rode it and i dont think it has a lot of hours overall.

Factor E
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9/22/2011
Location
So Cal, CA US
5/31/2026 2:59am

De glaze it and run a B piston

3
dkurtd
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Location
TN US
6/1/2026 7:15pm

Minor porosity is a common occurrence in two stroke cylinders.  I've seen them come back from platers with minor holes and the platers say it's fine.

1

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