I’m using my R80 project bike a lot now but have a strange issue.once the bike is warm, when I shut off the throttle the bike revs to around 2500rpm, if it’s in gear and I let out the clutch it’ll drop down to 900rpm tickover. It will also start building up revs on its own without touching the throttle. I’ve checked the carbs and pipework for leaks with carb cleaner , made no difference. I’ve given the advance and retard mechanism in the bean can a clean, but now I’ve run out of ideas.
Any thoughts?
Any thoughts?