Posts
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Joined
2/27/2019
Location
Broken Arrow, OK
US
king_halsey
2/27/2019 11:19am
2/27/2019 11:19am
Edited Date/Time
2/28/2019 8:20pm
Hello, I recently bought a 96 CR125. It was running but the motor locked so I rebuilt everything. The cylinder sleeve and piston showed signs of metal or dirt floating around, so I honed the cylinder, put in a new piston kit. I've cleaned everything and everything looks good. However, on the bottom of the cylinder jug, there's a chip of it missing (previous owners probably tried to redneck resleeve it) and it was crumbling a little bit. I did my best to grind it smooth, I'll probably have to do it again. I have a picture of it before I buffed it. My question is, should I just get another cylinder jug? Or can I grind it flat and be good? I understand I have to be careful that I don't touch the gasket surface or it won't seal. It has a piston sleeve so I don't think it will affect the piston..
As for the power valve I rebuilt that too, one of the sliding valve sleeves is cracked so that valve sticks, I'll need to replace that
The Shop
Paw Paw
Do not waste any money trying to get a new sleeve installed. The cylinder is trash.
It's also a bad idea to buy a bad cylinder on eBay that needs plating. Once Millenium receives a cylinder they often need to weld cracks, plating is usually 150/200. Those 1996 cylinders have been discontinued for many years. Most likely you'll have to buy a used cylinder that needs plating. Call Millenium and see if they have a cylinder for sale. Also, call LA sleeve for a cylinder. DO NOT LET LA SLEEVE TALK YOU INTO ANOTHER SLEEVED CYLINDER, THEY WILL TRY.
The CR125 hates sleeved cylinders. They seize easily if you don't run the jetting rich. I'd buy this one quick.
With the cylinder and power valves, this is a good deal.
ebay
I'll call and see if they have cylinders, I just gotta scrounge up the money to buy one. Everyone here has pretty much talked me out of cylinder sleeves so I'll get a plated one.
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