MK1962 Posted August 12, 2011 Share Posted August 12, 2011 My Kent runs rough between 2000-3000 and then runs great. I've got Petronix dizzy and a single rebuilt 40DCOE Weber. New battery, plugs and wires. Tach is rock steady until about 2000, then goes crazy until 3000rpm. Any suggestions? Link to comment Share on other sites More sharing options...
twobone Posted August 13, 2011 Share Posted August 13, 2011 sounds like an issue with the transition from the idle jet to the main jet. How to the plugs look? Too rich? Are your auxiliary venturies loose? Link to comment Share on other sites More sharing options...
The Stig Posted August 13, 2011 Share Posted August 13, 2011 If on Dellorto carbs it could also be the progression holes. Possibly blocked or if not, one may need to be. Had a similar issues solved with a dab or araldite in one of the holes. As two bone says though, just where it passes from idle to main. Cleaning everything is a good place to start. Link to comment Share on other sites More sharing options...
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