Aftermarket guage: erratic tach - Wrist Twisters
 
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post #1 of 2 Old 01-15-2018, 03:57 PM Thread Starter
Cornicen
 
Join Date: Nov 2009
Location: Manila, Philippines
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Aftermarket guage: erratic tach

Ive decided to refresh the look of my niner with an aftermarket GPS Speedo/tach. Speedo is working but tach is erratic. Not really a bouncing needle, its not tracking the revs accurately, slow in reacting to revs and reacting randomly to the throttle.
Tried wrapping the new tach wiring to hi tension from coils, no joy. Tried tapping new tach to stock tach wiring, same problem. Anyone else experience this? Would one of those tach filters help? Ive slso heard of splicing in a resistor. Any suggestions?

honda ng gingsa is offline  
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post #2 of 2 Old 01-16-2018, 08:04 PM
Pilus Posterior
 
Join Date: Mar 2013
Location: Sacramento
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I'm wondering if this is a MSD (Multi-Spark) issue. Is there any switches, hidden dip switches, jumper settings, etc...?

Do you have a brand name?

KarlJay is offline  
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