Right, you clever people - fix this one! New to biking so go easy on the technical jargon please! When I start my bike from cold, the choke makes little difference, and I still need a slight twist of throttle to keep it going. Also, and much more annoying, it seems to hold revs when the throttle is released - about 2000rpm - as though the cables are sticking on the throttle - checked these and they're as free as a bird. If I select a gear and slip he clutch slightly until it starts to get the gear, the revs will settle back to normal - it's especially annoying going down hills as it tends to push you down without real good slow speed control!! Tried taking the carb off (FCR; 'middle' jet - 165, 'others' 45 and 65) and cleaning the jets - seemed to make no difference. The screw beside the jets which sticks through the base of the carb had worked all the way loose - had heard that this should be set 2 1/2 turns back from fully closed - though not even sure what it's for? HELP I'm stuck!!