slwryde

I don't know if you ever found the problem with your snow blower. I have the same problem with mine.
No matter how I adjust it the unit will not go forward under its own power.  The problem with mine is a
worn out drive shaft spacer.  It allows the drive shaft (which has the front and rear drive hubs on it)  to move forward
and backward.  When it moves forward the friction disc does not reach it to drive the unit.  Revers works because when it
moves backwards it pushes against the rear drive disc.  The spacer is obsolete.  I just made one from plastic.
Works again!!