Joe-from-MO
Member
I wasn't getting anymore hits on my last post so i thought id try a new one. My ih 674 (gas engine) loses power under load. I dis-assembled the carb and cleaned it very meticulously, replaced seals and re-installed. No change. I tried pulling the choke out a little when it was acting up but this only made it worse. I cleaned out all the fuel line, all the fuel screens, and even pulled the ports off the bottom side of the fuel tank and cleaned anything out that may have been inside of the tank. Still no change. The tractor idles pretty good and starts up easily. I've noticed a little more black smoke coming out the exhaust than normal and the plugs were all black and sooty. I replaced the plugs but this didn't help. Any more ideas would be greatly appreciated. Thanks all.