Troy-Bilt 220...156cc self prop.walk behind mower runs perfect.

ICMadness

ICMadness

Forum Newbie
I have a TB-220 self prop. Walk behind mower. I have had 3 years, I had to replace carb. And plug this year because it wouldn’t start but every10-20th pull and only run a second. I got a great deal $13 for the exact replacement carb. New plug, filter. Put it on and it starts first pull, runs like brand new, can be moved around no problem can be left running sitting still and will run indefinitely but as soon as it touches grass it dies and it doesn’t bog down and die it just acts like I’ve removed the spark plug wire. Please can anyone suggest a fix..
 
Does this have a throttle control on the handle, or just a constant speed. I'm thinking that when the governor opens the throttle the new carb is jetted too small and it leans out. If you have throttle control try going from low speed to high.
 
tom3 said:
Does this have a throttle control on the handle, or just a constant speed. I'm thinking that when the governor opens the throttle the new carb is jetted too small and it leans out. If you have throttle control try going from low speed to high.
Click to expand...
No throttle control by the operator at all. The new carb was exactly like the one I replaced which was the stock part. I hope it’s nothing like the jets are to small cause I wouldn’t know how to fix that.
 
You must log in or register to reply here.
Back
Top