Hi Pitrack,
The left is a Model 5 Series 1 and looks fairly complete.
The right is Either a model 4 Auto or a Model 4 std. Colour/style discrepencies on the starter and cowl indicate a later model replacement at some stage, and it also has the incorrect air filter. The remaining appears correct for Auto and Std....My initial guess is that it appears to be an Automatic...Only serial and a few other clues will tell for sure.
Serial numbers are a must in identifying both models accuracy, then more info can be given.
