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PD carbs are notorious for clogging and need complete and thourough cleaning by somebody who understands them, i wont touch them at all
Quote from: Bryanj on April 01, 2024, 11:29:55 PMPD carbs are notorious for clogging and need complete and thourough cleaning by somebody who understands them, i wont touch them at allAre there later carbs available that will fit to replace the PD carbs Bryan - they must be bad for you not to touch them?
Practical advice for OP to check nothing simple is catching you out on this set.No carbs should "hang" on the throttle pull cable at closed position. This is ONLY facilitated by throttle stop screw next to cylinder #4 in providing absolute slide base position. If there's any tightness in pull cable at this position, then it needs adjustment to provide slack such that it can't interfere with complete "drop" onto that stop when you just let the twistgrip go. Make absolutely sure there's no conflict with secondary cable throughout full twistgrip movement. There's usually only adjustment on pull, with return being fixed.You can remove the return cable while you try to diagnose fault, but advise to use when ultimately riding it though.Idle mixture screws are set from a start point of 1 & 3/4 turns out from fully closed on the F carb set. Anything significant below that will likely give the symptoms described, effectively lean idle, with revs slowly drifting down and stalling. Make sure they are in the starting position if you don't know how they've been set.Worth verification of these points to see if there's anything basic running you ragged.