Cylinder change?

Cola22
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Cola22
Edited Date/Time 1/23/2014 6:25pm
Im doing the top end on my 2012 kxf250 and i wanted to know if i should change my cylinder when i do it, the bike is running fine now but i was wondering if i should order it? Is there anyway to know before i disassemble the entire top end.
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Harry Backmon 1/22/2014 6:24pm
1/22/2014 6:24pm
I don't know much about 4t bikes, but I would not change the cylinder without looking at it first. Is it giving you trouble? I'd change the piston and rings and run a hone through it and put it back on.
Paw Paw 271
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Paw Paw 271 1/23/2014 6:40am
1/23/2014 6:40am Edited Date/Time 1/23/2014 6:40am
In most cases the cylinder on a 4 stroke as new as yours will not need a cylinder replacement. With that said you will have to measure it after tear down to know for sure. DO NOT HONE THE CYLINDER if you still see the cross hatch in the cylinder walls, as there is no need. You will need to measure the ring end gap before assemble.

Paw Paw
BAMX
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BAMX 1/23/2014 4:13pm
1/23/2014 4:13pm
You can check it with a bore gage to see if it is in spec. Other than that, clean the bore with scrub free shower cleaner and a scotch brite pad.
Cola22
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Cola22 1/23/2014 6:25pm
1/23/2014 6:25pm
Paw Paw 271 wrote:
In most cases the cylinder on a 4 stroke as new as yours will not need a cylinder replacement. With that said you will have to...
In most cases the cylinder on a 4 stroke as new as yours will not need a cylinder replacement. With that said you will have to measure it after tear down to know for sure. DO NOT HONE THE CYLINDER if you still see the cross hatch in the cylinder walls, as there is no need. You will need to measure the ring end gap before assemble.

Paw Paw
The bike is running fine right now, the only thing is there is a little pinging noise, but i think i need to go up to 100 octane.

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