seems i had been running with a failing plug wire for while.
idle had been around 600/700
replaced plug wire and am running strong on all 4 cylinders again.
but idle has been at 1500 and i cant seem to get it down.
the adjustment screws on the carbs are completely out. not even touching.
tried pulling the throttle closed by hand..nope
tried advancing the ignition timing..nope
tried retarding ignition..nope.
sprayed brake cleaner on all 4 parts of the throttle shaft. had slight effect
and idle speed went down just a tad. wet the throttle shafts with engine oil/30
wt..no change.
any thoughts?
Frank
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