KX250 2T cylinder glazed, hone or scotch brite?

Usually just spray with WD40 or soapy water then wipe it down in a cross hatch pattern with a scotch brite (green).

Good vid from Jeff Slavens, thanks.

Sounds like it is time to measure the cylinder before you go any further.

Paw Paw

queen of spodes wrote:

Good vid from Jeff Slavens, thanks.

Thats a good video. Thanks!

Paw Paw 271 wrote:

Sounds like it is time to measure the cylinder before you go any further.

Paw Paw

Don't even need to put calipers on it. There is light chipping below the exhaust port and two tiny divits on another the other side of the cylinder.

Hate mailing parts off but it's either that or drop $600 for a new cylinder (and keep this one as a spare)

You may call millennium technologies, I think they have an exchange program where they send your a new reconditioned cylinder and you send them your shot one as a core.

Hi. I see that you have already decided to send it off for a replate. From your written description, I would say that is a good idea. I have a new in the OEM box 2005 KX250 engine. The cylinder walls have strong cross-hatching on them, as seen in the picture below.

This cylinder sounds worn down, but normally, I would try a pair of nitrile gloves, some green Scotch Brite and some light, clear oil. Follow that up with some warm, soapy water and an old toothbrush. Keep hitting it with the often mentioned white rag cleanliness test. After that, hit it with the hair dryer and a light coat of oil.