Re: 40hp Big Twin Lacks power

[frankr]

Personally, In my opinion, since it is much easier to remove the carburetor with the electric starter out of the way, and it is easier to remove the electric starter with the flywheel out of the way, I would do both at the same time—ignition and carburetor. Besides, the problem is more likely to be ignition than carburetor anyway. Likely is running on one cylinder.

So, the easy routine is:
Check compression first to make sure you have something worh messing with.
Remove recoil starter and flywheel
Remove Electric starter (and generator if it happens to have one)
Remove carburetor.

You will need a puller to get the flywheel off and a torque wrench to put it back on at 100-105 ft/lbs.