Check the compression, has the engine ever been rebuilt?, 20k is a fair bit even for these road engines! Sounds like the rings are in need of renewal or even better, a full rebuild then if you use high quality parts it won't want doing for another 20k.
__________________
Jamie
1996 CR250: 2 engines both with the same 1/2 missing!
After another 125 to kill the garden!
|