kbongos
Veteran Member
So I have been learning how to clean these carbs a little more each time I tear them apart. I really appreciate the helpful info and advice all of you experienced people share. After reading a few helpful posts, I start blowing air and carb cleaner and sticking pointy wires down these orifices where the sun don't normally shine. Some people point out the Idle circuit as being a common plugged up circuit. I figured out mine is plugged up. It's down that middle tube with the black plug. It has a pressed in brass orifice about half way down, before that is a hole leading to under primary jet next to it. So I can run a wire down this idle hole and it bottoms out near base you can see(about 1 inch down). I can stuff a tight fitting tube in there beyond the hole joining it to the primary, and then apply air pressure, or shoot carb cleaner. I have tried wedging the carb cleaner tube as tight as possible and blasting. Nothing seems to work, carb cleaner just sits there, no air flow detected. The cut-away of these carbs Tom posted were helpful in trying to understand it. Very tiny passages, leading over to those 3 tiny holes in the body near engine, last little hole above the idle adjustment screw with the spring and rubber washer. I have tried blowing air or carb cleaner in this idle air adjustment hole - I try to plug the 3 tiny holes and also a hole on the inner side of the air cutoff valve assembly that it seems connected to.
I have never done the full carb clean thing in ultrasonic or hot lemon juice, pine sol, or can of carb cleaner thing. Maybe that would help. Sticking a wire down this hole it bottoms out, I am guessing it hits a right angle junction and that's normal. Any thoughts or suggestions welcome! Thanks. Karl in MN
I have never done the full carb clean thing in ultrasonic or hot lemon juice, pine sol, or can of carb cleaner thing. Maybe that would help. Sticking a wire down this hole it bottoms out, I am guessing it hits a right angle junction and that's normal. Any thoughts or suggestions welcome! Thanks. Karl in MN