20112 - Instructions

Disconnected spark plug wire laid lawn mower in side removed blade bolt took off old blade put new blade on tightened it reconnected spark plug wire

All the gaskets needed to be replaced on the Briggs 6.75 flathead I was rebuilding. I ported and polished the ports and shaved the eyebrow between the valves and the piston. The gasket set was a perfect fit. It is a monster now. It doesn't sound like a lawnmower engine anymore

The hub that the mower blade mounts to was brokenPut the new Harbonne played and played securing flange bolted it up

I pryed the apart the torsion spring lever from the handle with a large screw driver. It wasn't easy putting it back, but it worked

Tip mower onto side, raising side to be repaired. Empty gas tank if possible or use rags to prevent gasoline drips onto clean surfaces.

Remove wheel using a 1/2" socket.
Remove wheel height assembly with 1/2" socket and open end wrench to hold nut below the deck.
Position new spring arm over the slot on wheel height ... Read more assembly plate. Check opposite side to verify correct orientation if needed.
Remove plastic cover from old lever using a small flat blade screwdriver. Slip onto new lever.
Replace wheel height assembly.
Replace wheel.

I took off the old blade adapter and put the new one on. It literally requires removing one bolt. Unfortunately, once I started and ran my mower for a few minutes it blew up and left a charred patch of lawn. The underside of the mower is mangled metal and unusable now. The repair, though, was super easy!