I’m at my wits end.
I bought the motor at auction. It looked almost brand new.
I took the carb off and cleaned it. (The rebuild kit is $40 and only gives you a new float and float needle valve.) Found debris in the bowl so I installed an in-line fuel filter. Got fresh non-E gas.
Starts and idles. The transition between idle and part throttle is not smooth. In gear it runs a short while and then stalls as if it is running out of gas. (I am careful to turn on the fuel petcock and open up the vent.)
Took the carb off again and was careful to make sure the pilot jet and its passage was clean because I read somewhere that the pilot circuit is key for up to 25 percent load and is a common problem for engines that start and then die after a bit.
Maybe it started and idled a bit better but it behaved the same when I put it in gear and tried to go somewhere. It dies. I need to let it rest a bit. I restart. Try to go. It dies. And the cycle repeats.
I noticed that the carb has no mixture screw and my lake is at 2600 feet so I decided to buy a new carb that has a mixture screw. It's $70 which doesn’t seem too bad. I installed the new carb. The fuel mixture screw came 2-turns out and I left it there. When installed the mixture screw faces inward.
Same problem. Starts and idles well but will not run under load for more than a minute or so. I need to wait a minute or so before restarting.
While it was idling I felt around the thermostat housing and it heated up and I think I felt the pee go from cold to warm.
What should be my next steps? Thank you for any suggestions.
I bought the motor at auction. It looked almost brand new.
I took the carb off and cleaned it. (The rebuild kit is $40 and only gives you a new float and float needle valve.) Found debris in the bowl so I installed an in-line fuel filter. Got fresh non-E gas.
Starts and idles. The transition between idle and part throttle is not smooth. In gear it runs a short while and then stalls as if it is running out of gas. (I am careful to turn on the fuel petcock and open up the vent.)
Took the carb off again and was careful to make sure the pilot jet and its passage was clean because I read somewhere that the pilot circuit is key for up to 25 percent load and is a common problem for engines that start and then die after a bit.
Maybe it started and idled a bit better but it behaved the same when I put it in gear and tried to go somewhere. It dies. I need to let it rest a bit. I restart. Try to go. It dies. And the cycle repeats.
I noticed that the carb has no mixture screw and my lake is at 2600 feet so I decided to buy a new carb that has a mixture screw. It's $70 which doesn’t seem too bad. I installed the new carb. The fuel mixture screw came 2-turns out and I left it there. When installed the mixture screw faces inward.
Same problem. Starts and idles well but will not run under load for more than a minute or so. I need to wait a minute or so before restarting.
While it was idling I felt around the thermostat housing and it heated up and I think I felt the pee go from cold to warm.
What should be my next steps? Thank you for any suggestions.