cheers for reply, have checked water pump and is working fine. took bike out sunday afternoon for about an hour ran greaqt didn,t overheat at all. parked bike back in garage and left running started to overheat after about 10min could it be that with it being in the garage ther is no air flow to ...

please can someone help I've bought a crm mk2 and have used it for about 2wks I've noticed that when I leave it ticking over when stationary after about 5min the coolant starts boiling up through the rad cap. I'm not sure where to start looking .do they have a thermestat or is it the head gasket ...