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Message: <blockquote data-quote="shovel" data-source="post: 1542158" data-attributes="member: 29855">If you can record a video of the idle that could be helpful.   Check that base idle timing is correct (with the spout connector removed) and also check that timing does not wander while slowly revving and returning to idle.   The point here is to check not only that timing is correct but also that your timing chain assembly is not worn.   The distributor is turned from the camshaft, which is turned by the crankshaft through the timing chain assembly so a sloppy chain will first show up as ignition timing that changes as engine speed increases and decreases.clutch chatter can come from a lot of causes, some more simple than others but most of them require disassembly to fix even if you diagnose them externally.    Even applying too much grease to the pilot can grease contaminate the clutch and make it chatter.   Sometimes that will go away over time, sometimes it won't.   I looked up the clutch model you have and they advertise it as a street/daily friendly clutch so it should not have excessive pedal effort,  of course any cable clutch will have slightly more effort than hydraulic.     If you plan to replace your cable and quadrant anyway I would suggest just doing that and then see where you stand.   It would not be a waste even if some other diagnosis needs to be done later.</blockquote>