I noticed some build up in the throat of the top and bottom carb, and also has a low end stumble when I tried to throttle hard from an idle. So I removed, soaked, adjusted the floats because the were slightly out, then reasembled, and changed plugs. Motor starts right up, but idle seems a little rough. Compresson on each cylinder is from top to bottom, 120psi, 120psi, 118psi. Ive confirmed all three cylinders are firing. What I did discover that when I pulled the plug to do the compression check, the top plug looked as I had just pulled it out of the box and put it in. I was concerend that maybe the plug itself was bad so I connected it to the plug wire, grounded it out and bumped the motor and it is in fact firing. So I moved the plug down to the middle cylinder and ran the motor for a minuite, pulled the plug and you could tell it had been combusting. I cleaned the plug and put back in the top cylinder and ran the motor again and it looked brand new when I pulled it. Looks as if there is no combustion taking place in the top cylinder. So I pulled the drain plug on the carb and the bowl had fuel in it. Does this mean some sort of intake issue, stuck reed or something?
https://www.youtube.com/watch?v=d650IbGa-D0
Here is a video that shows the buildup in the carb throats and the motor running.
https://www.youtube.com/watch?v=d650IbGa-D0
Here is a video that shows the buildup in the carb throats and the motor running.
