Please help smoke from crankcase tube

Why would a xr50 smoke like hell out of the crankcase tube?

Problie too much blow by past the piston. Your motor is worn out

Yup, your topend is shot, your getting ALOT of blow by from the piston, a new piston and rings will fix you right up.

just happened to a buddy, and another has been smokin for a long time.

topsshot.

thanks

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