Hello fosdyke, thankyou for your reply, i have had a 98% improvment by tackeling the pilot jets, they were all gummed up i shyed away from them until i could locate a suitable manual, i have done this before without a manual and lived to regret it. However i think the remaining problem is now down to adjustments. It starts on choke and runs with full throttle movement, it runs off choke also with throttle but wont idle for long before revs start to drop off. Still it is a massive improvement, iam very encouraged by this. Thanks again for your input and to all those who took the trouble to reply to my calls for help, cheers tooty