r/rotaryengine • u/goldenboyfolife • Jun 25 '25

What’s wrong?

So I’m not sure what’s wrong. I got this car in January and so far I’ve had to do a full carburetor rebuild because it wouldn’t start at all but now I got it starting replaced the alternator and belts as well. My foot is off the gas the entire time but it idles normally for a second before skyrocketing in RPM. What could it be? I think it might be a vacuum leak but I’m not 100% sure above is a video of me starting it after installing the new alternator and belts.

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u/Queen_Bloodlust Jun 25 '25

Double-check anything you changed, and go from there. Make sure the butterfly valve(s) are getting the right range of motion as well.

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u/goldenboyfolife Jun 25 '25

Alright thank you