I would like to install a tach for an old 66 Mercury inline 6 model 1100, usually the gray wire in the control box is used, but the gray wire here is used to power the choke switch, where else could I attach it to?
Remove the brown wire from the 4 terminal side of the switchbox and attach it to 1 of the yellow terminals on the rectifier if your useing a alternater powered tach then just plug in the front of the control box
Remove the brown wire from the 4 terminal side of the switchbox and attach it to 1 of the yellow terminals on the rectifier if your useing a alternater powered tach then just plug in the front of the control box
Not sure what box or ING ya have, but study this diagram. Click to enlarge. Maybe this will help.
Brown wire is tach signal out of the harness, white goes to choke white (hot), black ground. This is Thunderbolt ING.
In 66 a inline 6 with conventional ign. (2 coils) there was no tach wire or extra wire included in the harness from merc as that was considered a price engine at the time. You will have to find a later control with a tach plug included or run a extra wire
In 66 a inline 6 with conventional ign. (2 coils) there was no tach wire or extra wire included in the harness from merc as that was considered a price engine at the time. You will have to find a later control with a tach plug included or run a extra wire
