m610
Member
- Joined
- Mar 31, 2020
- Threads
- 5
- Messages
- 38
Hi. I just inherited a Snapper Zero-turn mower (model 7800795) that has a 21 hp Briggs and Stratten motor (model 33M777-2117). It ran great for the previous owner until he did a little work on it, got disgusted, and bought a new electric motor to replace it.
"My New Snapper" has a new battery and starter and cranks, but gets stuck. By stuck I mean the engine turns for a bit then it stops. I know the started has power because the battery cable starts to smoke. My guess is the valve adjustment is out of whack. If I remove the spark plug the engine cranks just fine.
How is the valve adjustment done? (I can't find a service manual online.) I'm sure there are timing marks on the engine but I have no idea where they are, and since the motor is on the mower, I probably won't have access to them anyway.
I'm tempted to try to set the valves by slowly turning the engine by hand and adjusting the valves so they never have more than 0.04 mm lash, or whatever the value is supposed to be.
Suggestions?
Thanks in advance.
Mike
"My New Snapper" has a new battery and starter and cranks, but gets stuck. By stuck I mean the engine turns for a bit then it stops. I know the started has power because the battery cable starts to smoke. My guess is the valve adjustment is out of whack. If I remove the spark plug the engine cranks just fine.
How is the valve adjustment done? (I can't find a service manual online.) I'm sure there are timing marks on the engine but I have no idea where they are, and since the motor is on the mower, I probably won't have access to them anyway.
I'm tempted to try to set the valves by slowly turning the engine by hand and adjusting the valves so they never have more than 0.04 mm lash, or whatever the value is supposed to be.
Suggestions?
Thanks in advance.
Mike