kinda old thread I found by search, my sled (79 Enticer 300, motor is 80 Enticer 340)
is using ALOT of oil; my son rides more than me, he rode it last week in the 1st snow and it started out great; but started smokihg and bogging more + more.
yesterday it smoked and bogged more than ever its bogging so bad it dont have the balls to pull itself; block the back up and rev it wide open to clear itself out, the clutch looks to be working as it should; it sounds good revved up spinning free and alot less smoke; set it off the block and it wont gain revs enough to move the sled and cough and smoke.
The smoke is blue, it's oil... I think the pump is passing wayyyy too much which is choking things out. but why all of a sudden? it did run awesome last year after I got the carb straightened out. and it has done nothing but "sit" between then and now.