Re: clutch wont disengage.
A dry plug is preferred.
If it is wet then the carb still has a flooding issue... or... If the carb was flooding previously then there is a good chance that the crankcase has filled up some with fuel which must be evacuated before the engine will start. Excess fuel in the crankcase will upset the precise air/ fuel ratio that is transferred into the combustion chamber and result in a no start, wet plug and frustration when the carburetor is tuned adequately to run.
If the spark plug is dry then you most likely have a air leak somewhere in the intake. It could be the carb to manifold or the manifold to cylinder. An air leak can also exist elsewhere, but the intake system is the most common place to start looking.
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