lumpyhesitant performance
Posted: 25 May 2008, 22:43
Hi All, my '85 DG petrol w/cooled is giving me a slight headache and I can't find anything on the wiki for it and the forum is yielding precious little.
Had some lumpy /jerky running recently so changed the rotor arm & cap which has improved things greatly BUT...........when I start her up the auto choke engages and proceeds to do its thing, however half way thru as the revs pickup instead of the usual buildup the revs drop off and the the engines feels/sounds like it's being starved as the engine gets lumpy.Also when I set off the first 10-20mm on the throttle is fine then the hesitancy starts. As the throttle goes down further the engine picks up and sets off at a good rate.
any ideas where I need to be looking?, fuel pump?, carb?, recently changed all fuel lines , had a service etc.cheers.
Had some lumpy /jerky running recently so changed the rotor arm & cap which has improved things greatly BUT...........when I start her up the auto choke engages and proceeds to do its thing, however half way thru as the revs pickup instead of the usual buildup the revs drop off and the the engines feels/sounds like it's being starved as the engine gets lumpy.Also when I set off the first 10-20mm on the throttle is fine then the hesitancy starts. As the throttle goes down further the engine picks up and sets off at a good rate.
any ideas where I need to be looking?, fuel pump?, carb?, recently changed all fuel lines , had a service etc.cheers.