[Spridgets] Intermittant tach issues

[ryan.kubanoff at comcast.net]

Due to the unusual amount of rain here in Pennsylrania this fall I have been
fighting with some intermittant electical problems due to my midget being
outside 24/7B  and the rust and corrosion that comes along with it.



Most recently this has developed in the form of a fluttering tach displayB 
While driving at highway speeds I noticed my take would bounce from 4200 down
to 3500 and back with no coresponding effects to the driveability so its not a
physical engine issue i think.B  But I did notice I could initiate the bounce
by using my turn signals.B  This implies an electrical issue ( I know ED DUH!)
but where do i start?B  where does the electrical connection from the tach
connect with the turn signals? I see no drop electrically from the lights,
radio, engine performance, other gauges.B  so I am guessing its some loose
bullet connection but where?



I am open to suggestions but not critique of me not knowing how electricity
works or how to read a wiring diagram.B  I am aware of those and can do all
that but I am looking for a "hey ryan try this first" type of response.

Thanks in advance

Ryan