Re: rough running at high engine speeds

Posted by prentice672 On 2017/10/24 11:21:58

It happens whether you're in motion or not. On the road it occurs in second gear (not yet in overdrive) at about 35 mph. In third gear (out of OD) around 50 or so. It really sounds like it occurs at about the same engine speed each time. When I rev it in neutral in the garage and look down the carb the main nozzles seem to be spraying fuel ok. When I look way down the throat I can see the throttle valves and they don't seem to open up completely until the last couple of inches of pedal motion, and that's when the engine starts to lose power and run rough.