Tachometer not working or hanging at 4-5k RPM
#1
Junior Member
Thread Starter
Tachometer not working or hanging at 4-5k RPM
The tachometer on my 1983 GS does not work from start up, and takes a long extended period of driving to actually turn on. Even when it does, the tachometer will not go above 4.5k RPM, even though I can hear and feel the engine revving beyond that. I disconnected the cables from the coils and reconnected them, and that made the tachometer turn on before doing an extended drive, but it still had the issue of the tachometer not going above 4500 RPM. Does anybody have an idea of what this issue could be?
Last edited by richlgilbert; 11-23-17 at 06:14 PM. Reason: clarification
The following users liked this post:
richlgilbert (12-15-17)
#5
84SE-EGI helpy-helperton
It's the grease. Now that it's getting cold out, the grease gets thick and cause the needle to stick or be sluggish. I have thie slow start issue and it's only about 50F out. Mechanical, not electrical.
The following users liked this post:
richlgilbert (12-15-17)
#7
84SE-EGI helpy-helperton
If you run the heater inside, it will melt the grease sufficiently to let the tach operate correctly. Run heater on Bilevel setting so you get some leg heat which will rise against the firewall and behind the dashboard instruments.
Trending Topics
#8
Damn, it did start!
Is the tach re-greaseable? If so, what to use to ensure cold weather performance?
#9
Always Wanting to Learn
iTrader: (49)
Best of luck with the tach! Could always try pulling it apart over winter and seeing if you can get something in there to lubricate the mechanism up.
I also have a spare gauge cluster that I'll be selling if you wanted to tinker with it.