Ok heres what I did took out gas tank cleaned the inside with small peebles attached gas tank to a small rotating cement mixer.brite metel inside now , going to seal it with POR 15 gas tank sealent , The next thing I did was took the rad and moved it closer to the fan, took off the fan extrension of the generator so I do this. Put the old pully back on. Neext put an inline filter in Gas tank then on Gas line, next thisgs to do is a new diapram, Pump rod is OK. I put an NOS helmet style coil in took out old coil and replaced the condenser, all wirs are OK, cleaned plugs set new timing everything is Top dead center, After that I'll blow out the carb and start her up with fresh High Grad gas with a little MMO in it. This is FUN stuff. Cheers BIG MIKE