Re: Shifter Bike Freewheel Skipping?
If it turns out not to be the rear wheel freewheel, check the engine sprocket.
The nut may have come loose letting the sprocket slip on the shaft. Of course if this is the case, you would need a new woodruff key too as that would have to shear to allow this.
Yes, a slightly loose sprocket can slip a little randomly and not free spin. It all depends on how loose/ tight the assembly is.
Edit: The small pinion gear as well as the clutch can also have these issues where they attach to their respective shafts.
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