yep good news my bike was returned yesterday there was a fault with the fan so i will be trying out this weekend and hopefuly i want have any other problems..
thanks for your reply pidcocks is picking bike up monday realy good service as i was worried on taken it back my self with a 400 mile round trip ..just hope nothing else goes wrong .
just bought a new montesa 4rt 2hours into riding and the bike shuts down goes into limp mode then i noticed the fan shudderring but not kicking in any ideas on why this has happened