Tachometer replacement "76 135

fullcontactdw

Recruit
Joined
Dec 5, 2010
Messages
3
Can I use an automotive tachometer on a 1976 johnson 135? the manual says not to use a tachometer that isnt designed for the motor. Its a sunpro tach.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: Tachometer replacement "76 135

Sorry, you can't do that. You must use a tachometer that is designed to operate off of the engine's charging system, one that can be set to function on six (6) pulses.
 

SparkieBoat

Captain
Joined
Aug 17, 2009
Messages
3,643
Re: Tachometer replacement "76 135

are your sure your tach is bad...could be your rectifier
 

fullcontactdw

Recruit
Joined
Dec 5, 2010
Messages
3
Re: Tachometer replacement "76 135

Well The boat sat in the sun for alot of its life so i was replacing all of the dash components but i guess ill buy a marine tach.
 

SparkieBoat

Captain
Joined
Aug 17, 2009
Messages
3,643
Re: Tachometer replacement "76 135

check on e-bay sometimes find a whole set of used gauges cheap..if you are trying to save $$..but used stuff is always a gamble
 
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