TCI acting up - Maybe?

[camos]

Had half a day to spare today so thought I would continue cleaning up the VR. Started up first shot with a little choke, let it warm up for 5 minutes then it just quit. Restarted OK but immediately quit again. Started again but kept a bit more throttle on and the engine kept running but would cut out/slow down then pick up again. Without stalling, sometimes the tach would go direct to zero then back up again.

 

Didn't have the tools handy or the time to start investigating but been thinking the jumping tach might be an indication there is something not right with the TCI. Could be just connections, I hope. Any suggestions as to what might be causing the problem would be greatly appreciated.

[Rocket]

Didn't have the tools handy or the time to start investigating but been thinking the jumping tach might be an indication there is something not right with the TCI. Could be just connections, I hope. Any suggestions as to what might be causing the problem would be greatly appreciated.

Also check the coil primary connections, as the tach gets its feed from #2 coil (left front).

[curtdennin]

Wow, dejavue. My 83 did exactly what you describe, about two months ago. Replaced the pickup sensors that trigger off the flywheel. Smooth running ever since. Curt

[frankd]

Rock the kill switch back and forth a couple of times. You can tell if it's the kill switch causing your problem if you turn the cruise control on and watch the "ON" light. The kill switch also controls the power to the cruise control.

 

Frank