It is on a Toro 10441 push mower. Toro used them when they bought LB. When they used them up, the 10441 got a B+S. Pretty sure the coil died or something. So a little searching got me the info that it's a late model LB 2 stroke. I always thought it was a Tecumseh..does it have any parts I can use on either an F Series or a Dura-Force ? All info welcome TIA 