1972 Norton 750 Commando Rebuild Page 10
It took some time but I untaped my wiring harness. It had 30 years of oil and dirt in it. I zip tied it at every junction and cleaned the oil off of it. It is a lot nicer to work with after the oil was removed.
Lastly, I cleaned up the old Amal carbs. These things are some kind of primitive. The large chrome buttons sticking up on the sides allow you to flood the bowls on a cold start. They are finicky and wear out their innards easily, but I like running them cause I am kind of preverse. All thats left is to install the carbs and get the wiring back in place.
This is one of the carbs cleaned and mounted.
These are the slides and the metering needles. The slides control the air and the needle slides up and down in the fuel jet.
Here are the twin carbs assembled and connected to the throttle.
With the carbs mounted all that is left is the wiring. There are two main holes in the frame for the harness. Here I have it in the holes.
Here the wiring gets sorted out for the various circuits.
Now the long complicated part. All the wiring gets plugged into the correct points on the bike. Strangly enough the wires don't always color match so I am double checking with a wiring diagram.
I ran into some problems with the wiring. There seemed to be a short in the system even before I turned the key to the on position. Hooking up a battery would blow a 35 amp fuse. Had to break out the old multimeter and start looking.
I found a possible gremlin but it turned out to not be here.
