Re: Weird Surging

Posted by Redhexagon On 2024/2/24 2:39:41

I drove it today and I think the problem is carburetion.

It only surges when the secondary butterflies are open. I can slowly roll into the throttle and it pulls smoothly until I reach the secondaries at around half throttle, then it starts surging after the secondaries open. It pulls strong with good power. I can feel the "rush" as the secondaries open...it surges while doing it.

I'll pull the carburetor apart and check it out. Maybe the secondary jets are the wrong size or something is clogged. A plugged air bleed could be all that it takes. If the fuel flow surges or the air flow surges, it will make the engine surge.