Neatus Posted January 30, 2022 Report Share Posted January 30, 2022 Evening Ratsun! I am getting all the electrical sorted on my 73 620. After refurbishing the light switch I noticed these two connections coming off the back of the speedo...a bullet style and a spade style. I have one bullet style wire connection in the harness that isn't plugged into anything but according to my wiring diagram that wire (blue and white) goes to the clock which I don't have. Any idea what plugs into these if anything? Quote Link to comment
datzenmike Posted January 30, 2022 Report Share Posted January 30, 2022 The unused lug looks to be on the same trace as the one connected to the yellow wire and would serve no purpose. The yellow wire comes from a 'speed switch' in the speedometer. Look at your speedometer and you'll see that it only goes just below 10MPH and does not have a 0MPH. There is a switch inside. The yellow wire goes to a small amplifier box (shown) with two wires and this turns off, or resets the BCDD solenoid on the side of the carburetor.. Quote Link to comment
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.