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rx4ur7 · 01-01-2010, 07:27 PM

Bouncing of tach usually indicates igniter or wiring issue. Check igniter, coil, coil wire, wiring to coil and igniter. Check all grounds. Last would be to check tach unit, they do go bad but usually will not effect running.

01-01-2010, 07:27 PM	#8
rx4ur7 Rotary since 1972 Join Date: Nov 2008 Location: Tucson Posts: 231 Rep Power: 17	Bouncing of tach usually indicates igniter or wiring issue. Check igniter, coil, coil wire, wiring to coil and igniter. Check all grounds. Last would be to check tach unit, they do go bad but usually will not effect running.