Ok so this is what I have done thus far.
Yesterday I reset the tappets with the motor idling with it at operating temperature.
Did as you guys suggested, loosened each in turn, waited for the tappet noise and then tightened so the noise went away and then one full turn from there.
Its made a very marginal difference as the slight miss is still there.
For now I'll just settle for it to be like that.
I am going to swap out the carb for a 38 weber which I just paid for. I should get it in about a week or so. Will need to probably overhaul.
Have any of you done this carb conversion before? I'm sure I will have to play around with different jet sizes. Any advise on this.
