Hi Ren & George,
I can help you with the information you need. George I am "Lee". My given name is "Quenton" but "Lee" is my nickname.
So here goes, lifters can be installed 2 different ways, first they can be installed from the top, but requires removing the cylinder. The second way is from the bottom, and is much easier, and is the way I always make the change. Remove the side cover [be very careful if working on the WC-1 motor, because the phillips screws are difficult to remove without damage], remove the camshaft, remove the compression cover [lifter cover], loosen the adjustment bolts & nuts. Place a rag under the lifters inside the motor to "catch" the lifters, remove the adjustment bolts & washers, allow the lifters to drop into the rag. Insert the "mushroom" lifters from the bottom, screw the adjustment bolts into the lifters, install the camshaft [one tooth advanced], install the side cover. Be sure to rotate motor to TDC before adjusting the lifters, simply rotate motor until both lifters open then close, turn motor just a little more to make sure you are closer to TDC. I adjust the liffters as follows.... .006" intake, .008" exhaust, however the factory settings are .009" if using the NE camshaft, and .012" if using the WC-1 camshaft. Install the compression cover [be sure to have a #2217 gasket before the upgrade, because it almost always tears].
Hope this information helps, If you need more just ask.
Whizzer OuterBanks LTD
A North Carolina Corporation
Quenton "Lee" Guenther
252-475-0406 cell
quincy163@yahoo.com