LawnBoy4502
Member
- Joined
- May 6, 2019
- Threads
- 1
- Messages
- 10
Guys, I have a Lawn Boy 4502 with the F300 series engine, and a white plastic carburetor.
The engine will start usually within one or two pulls after priming (3 or 4 pushes on the primer bulb). Then I can cut the grass for about five or six minutes and then the engine begins to act as if it is running out of fuel - rpms rise and fall and then the mower will cut off.
I can prime it and sometimes it will restart, other times it will not. The float was replaced a while back, along with the float needle and valve. Also the fuel line was replaced and since the shut-off valve on the tank has a broken handle, I installed a HAK cut off valve.
I seem to remember it having this problem years ago, before I replaced the float, needle, and valve. I set the float level per the factory setting in the on-line manual: https://lookup3.toro.com/ttcGateway/...als/lball.html
I am using a 32:1 fuel mix and the engine doesn't seem to be running hot as sometimes after I get it to restart it will run for 30 or 45 minutes so I can finish the yard.
I have also replaced the coil (today) and are still having the same exact problem.
Thoughts?
The engine will start usually within one or two pulls after priming (3 or 4 pushes on the primer bulb). Then I can cut the grass for about five or six minutes and then the engine begins to act as if it is running out of fuel - rpms rise and fall and then the mower will cut off.
I can prime it and sometimes it will restart, other times it will not. The float was replaced a while back, along with the float needle and valve. Also the fuel line was replaced and since the shut-off valve on the tank has a broken handle, I installed a HAK cut off valve.
I seem to remember it having this problem years ago, before I replaced the float, needle, and valve. I set the float level per the factory setting in the on-line manual: https://lookup3.toro.com/ttcGateway/...als/lball.html
I am using a 32:1 fuel mix and the engine doesn't seem to be running hot as sometimes after I get it to restart it will run for 30 or 45 minutes so I can finish the yard.
I have also replaced the coil (today) and are still having the same exact problem.
Thoughts?