Ok guys, I am pretty sure I already know the answer, buuutttt, I want to run it past the EXPERTS!
The speedo on the 80 1) stops at 85, 2) fadded really bad and 3) the trip does not work.
I have an extra off a 79. Both Standards. Direct fit I realize, but what about speed readings? I have checked the drive on the axel, both 79 and 80 share the same part#. I know I can "read" and "messure" a few ways, (tach, ride with antoher bike, follow in a car, etc) but I was just currious if anyone has made this change and had any trouble with the correct speed readings?
As far as mileage, theres not much of a differance, I can use a drill to get the 79 speedo to the correct mileage. May take some time I realize, but hey, I have all summer.
Thanks for any insite / advise!
The speedo on the 80 1) stops at 85, 2) fadded really bad and 3) the trip does not work.
I have an extra off a 79. Both Standards. Direct fit I realize, but what about speed readings? I have checked the drive on the axel, both 79 and 80 share the same part#. I know I can "read" and "messure" a few ways, (tach, ride with antoher bike, follow in a car, etc) but I was just currious if anyone has made this change and had any trouble with the correct speed readings?
As far as mileage, theres not much of a differance, I can use a drill to get the 79 speedo to the correct mileage. May take some time I realize, but hey, I have all summer.
Thanks for any insite / advise!
These bikes are 30+ years old. I've changed the speedometer on my SG 3.......maybe 4 times.........I've gone from 46K to 13K and now 15K.
I'm pretty sure this frame is pushing 100k.


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