Help,
Just got my sons ET4 125 MOT'd and on the road for his college run. After changing speedo cable I took it out for a test run. when I returned I noticed a very rattly sound.
Further investigation showed it is coming from the rear transmission area and is really noisy at tick over. It seems to fade a tad when you accelerate.
Please can anyone suggest any possible causes, I don't think it is clutch slip but I could be wrong.
I'm worried that if this gets really bad it could damage the engine.
Should I stop him from riding it until its fixed?
Thanks
mark