"Clams Canino" wrote in message news:WTmYb.204648$U%5.1126945@attbi_s03...
: Or, you could run a new wire, bypassing the throttle, straight to tach.
: You really need the manual with wiring diagram to sort it out the right way.
:
:
That's what I'd do...
You already isolated the problem to the wiring - so the next step would be
to inspect the loom and see if there's an abrasion problem and how many
other wires will be affected sooner or later - then go enjoy the water.

Dave