Sega throttle valve

Your question is not very clear, and there is no motive?

What about the engine speed? Is it flameout or idling, or high speed?

I think there may be two situations:

1: the accelerator is dirty, which should be a common problem, as long as you run 18 thousand to wash it.

Because this problem is inevitable, so try to keep the speed high, and drive below 2000 rpm for a long time, which will form a lot of carbon deposits.

2. There may be a problem with the oil circuit, blockage or a problem with the gasoline filter. In short, check the oil circuit comprehensively. What you said is that there is no motivation and it is dangerous. If there is no power, the brakes will not work and it will be difficult to stop.

Check as soon as possible to eliminate hidden dangers.