Rx7 FD help
#2
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I know that the Sec gen RPM Gauge runs off Trailing..if the Fd Runs the same,then I would check the Plug wires and the Plugs themselves..fouled trailing plugs will alter the Tach...then again I have been wrong before!
#5
Rotary Freak
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Search the term "Tach" & "bouncing" in the 3rd gen section and you'll get alot of informative threads. Read them all and you'll see that there are grounding issues and points that often need to be re-soldering on the cluster. If you still don't have an answer post a more specific question based on what you learned by reading in the 3rd gen section and I am sure you'll get some help.
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#8
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My tach would stick at about 2,500 rpm, then break free at about 6 then shoot out. I got a cluster off ebay, swapped the tach, and no problems since. Easy as pie.