While you wait for answers, we may have found some information which could help you.
Click here for Yard Mower Mowing
rebuilding a lawnmower engine?
How do I tighten the drive cable on a yard machine snow blower?
Can't get front pulley off yard machine rider?
Engine runs wide open unless brake pedal is pulled completely back. Why?
loose belt?
What size engine is the Classic 35 100cc or 145cc?