By your post i see...........79 has mag wheels and the 80 has spoke wheels..........If the 80 Has the spoke wheels then they both would look the same side by side.
Getting the vin no's is important for the 79 and 80's due to a lot of changes from 79 to 80........and the production date crosses over from one year to the next. A 10/79 would be an 80 and a 6/79 would be a 79, 10/78 would be a 79.......
Usual rule of thumb is Aug is the start of the year production run to July the next........There is a caution however as sometimes the model run has been known to run over by a month or 2. Then the vin no is used for the true model of the bike........
Add to the confusion 79 had 3 models, (79F, 79SF, 79SII), and 80 had 2, 80SG, 80G SII), and the 80G SII model' looked exactly like the 79SII with the change in the ignition and carbs being the main differences
Confused........
Getting the vin no's is important for the 79 and 80's due to a lot of changes from 79 to 80........and the production date crosses over from one year to the next. A 10/79 would be an 80 and a 6/79 would be a 79, 10/78 would be a 79.......
Usual rule of thumb is Aug is the start of the year production run to July the next........There is a caution however as sometimes the model run has been known to run over by a month or 2. Then the vin no is used for the true model of the bike........
Add to the confusion 79 had 3 models, (79F, 79SF, 79SII), and 80 had 2, 80SG, 80G SII), and the 80G SII model' looked exactly like the 79SII with the change in the ignition and carbs being the main differences
Confused........