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Old 08-29-2013, 01:41 AM   #13
Studly Adventurer
Katoom72's Avatar
Joined: Jun 2012
Location: Belgium
Oddometer: 915
Originally Posted by gefr View Post
In case this is the culprit though, the new seals will rapidly disintegrate within a month or so, operating in the damaged cylinder surface. These cylinders are colored with a hard paint. When this gets damaged, the seal gets eaten and leaks. The cylinder then needs replacement. I had good luck resleeving this with stainless steel sleeve and going down in diameter. I used lighter KTM bikes' clutch piston. The effect is holding nicely till now.
If the surface is damaged then it's a good idea to resleeve or replace the master. Thank you for correcting that.
'03 KTM 250sx -- '05 KTM Adventure 950
'00 KTM 250sx -- '03 KTM 450sx -- '03 Yamaha R6 -- '08 KTM SuperDuke R --- '13 KTM 690 enduro R
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