Started it up this afternoon when leaving work, Tach bounced around like it normally does at idle (100-200 rpm) which I always attributed to warming period for the engine. Than it just quit no bounce no nothing.
I'm pretty sure that this will be self revealing once I look at the cable but has anyone had a sudden Tach failure, that is a failure without any warning? I've had failures of the speedo drive but that at least gave me some warning by bouncing around more and more erratically until failure.
Bike is a 74 Mk II never had the cable off or greased, of course, why would I want to do that. Looks like their are only three likely possibilities, cable, driven gear or Tach. Wondering if this drive is just like the speedo and can I pull the cable and drive it CCW to check the Tach? How would I determine if the driven gear needs to be replaced or just the cable if the Tach works fine? Obviously, if cable broke that will be a real tip-off.
Driven gear is pretty expensive so would much rather have it be the cable.
I'm pretty sure that this will be self revealing once I look at the cable but has anyone had a sudden Tach failure, that is a failure without any warning? I've had failures of the speedo drive but that at least gave me some warning by bouncing around more and more erratically until failure.
Bike is a 74 Mk II never had the cable off or greased, of course, why would I want to do that. Looks like their are only three likely possibilities, cable, driven gear or Tach. Wondering if this drive is just like the speedo and can I pull the cable and drive it CCW to check the Tach? How would I determine if the driven gear needs to be replaced or just the cable if the Tach works fine? Obviously, if cable broke that will be a real tip-off.
Driven gear is pretty expensive so would much rather have it be the cable.