200 4v weird noise when I let the throttle off while riding

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29 Jan 2022

When slowing down (let off throttle) I hear a weird noise that seems to be getting worse, sounds like it is from the lower left side of engine......if while slowing down (letting off throttle) I hold the clutch in (clutch disengaged) the noise goes away. I checked both the sprocket and also the chain slackness, all these are fine. I am having one after another issue in my bike. The engine sometimes shuts off while in traffic and also sometimes the engine suddenly decreases the rpm (it would feel like the engine is shutting off) and shoots up immediately while deaccelerating with clutch engaged.