hi all.

[TPR]

the rev counter doesn't work on my '79. I don't know if it ever has as even though it came with the bike it wasn't on it when I got it.
The new cable spins from the engine and I used a electric drill from the engine end but the rev counter doesn't work.

I take it this is the right type for my bike?

Before I take it apart, any pointers as to what to look for?

thanks

 

[Its been a long time]

Look into where the square end of the drive cable fits into the rev counter drive. It should be visibly square to suit the cable end. It might be worn such that the square cable can't drive it.

I assume you did have the drill rotating in the correct direction when you tried driving the rev counter with it?

 

[gggGary]

Yeah the drill needs to be run in reverse. Sure the cable is going far enough in to the tach to engage the square hole?

 

[650Skull]

+1 on the direction of the drill, reverse.

 

[gggGary]

With it on the bike leave a hair dryer pointed at the back for a good 15 minutes or so. See if that "cures it"
The bell has blob of grease that can settle in the wrong spot if the tacho is stored "upside down"