Flaky Tach

Wolflakeskier

Recruit
Joined
Sep 9, 2015
Messages
1
1991 Johnson 150GT
1991 OMC tach
Power Pack and stator replaced in 2010; <30 hours on it.
No starting/running problems.

Wire continuity from engine to tach checks OK.

1) Tach is intermittent at low speeds. Usually doesn't start working until engine has been started/stopped several times within our outing
2) When it is working, drops to zero as soon as it reaches +/-2700 rpm

Thank you in advance!
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
51,362
welcome aboard

you have a loose connection somewhere
 
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