Tach Problem?

G3Boats

Cadet
Joined
Apr 21, 2007
Messages
14
Lately, the tach on my Yammie 60 is going nuts sometimes. It will race to the max, go down, go up, then settle on the rpm and not every time I go out. Can this thing be lubed, or is it an electronic sending unit?
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,851
it receives an electrical signal from the lighting coil.
might try running the setting switches back and forth a few times to wipe the connections inside to get better connections
 

G3Boats

Cadet
Joined
Apr 21, 2007
Messages
14
Pardon my ignorance, but are they under the dash on the back of the tach, or on the engine? Thanks for your help.
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,851
on the tach
and check grounds along with all wires for bad connections
 
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