Does this cylinder look normal

[Toby woodman]

My bikes got 15 hours on it, I took the cylinder head off and it looks like this. Is this looking good for 15 hours. Or does the cylinder have light scoring?

 

[weefek]

It looks fine. Due to tolerances etc there will be some minor scoring no matter what you do. These are not automotive 4 strokes.

 

[Jayraye39]

It looks fine. Due to tolerances etc there will be some minor scoring no matter what you do. These are not automotive 4 strokes.

It does look like you have alot of piston slop. from the pics it looks like the piston is a 1mm to small. notice the gap on intake side of piston crown

 

[GW's Motorized]

Looks fine to me. These engines aren't built to any good quality standards. It should run just fine for a long time.

 

[Jayraye39]

I know from buying a lot of pistons that some of them do vary in overall dia. I would think it is the piston itself and not the jug.

Ive had that much play before on an all alum jug and it scored the chit out of it. Even chipped the coating.try a different piston from a different vendor. the tighter that piston fits. the less scoring and problems your gonna have