Missing at 3500 RPM and Above

[drolston]

Originally Posted by Ggmac

I had a similar problem. Turned out the fuel line was too small . Or more correctly, small and had a slight kink in the line causing a flow restriction.

I will check fuel flow at the output of the mechanical pump; both mechanical only and with electric pump through the mechanical pump. The electric pump is inside the frame rail just in front of the left rear wheel.


Now that you mention it, I am more suspicious of fuel flow. Ran fine in the Fourth of July parade; it was very slow moving and a very hot 93 degree day. Surprisingly, the engine did not over heat but it would not restart after being parked for half an hour. In spite of the electric pump I could see bubbles in the clear lines from the mechanical pump to the three deuces. No bubbles and started easily the next morning, in spite of a low battery.