While you wait for answers, we may have found some information which could help you.
Click here for Toro 521 SnowblowerToro 20332 rear drives wheels stripping gears?
why won't my mower move or crank ?
Toro GTS model 20016 ?
how to diagnose electric start problem?
why will my toro snowblower engine only run if i keep choke fully closed?
Toro 20018 Recycler Mower from 2002 leaks gas?