Has anybody had an issue with heavy rains and the motor dying? Im not sure that it is the starter relay switch yet only cuz i poured 6 glasses of water on the 'area' and it kept running. At this point i am still confused. Hopefully somebody here has had the same problem and has fixed it....i ride an 06 vtx 1300R.
Several things to look for to help locate and resolve your problem.
1.) Check that your battery cables are clean, tight and secure ... use a 10mm wrench or ¼-drive ratchet and 10mm socket.
2.) Check that your gas tank vent hose is unobstructed AND has the "splitter-T" in place about mid-way down its length. This prevents water getting sucked up into the bottom end of the vent hose and cutting off the fuel flow.
3.) Check the Green and Black wires at the end of the harness connector that is plugged into your ECM. These wires have been known to break inside the insulation and can cause intermittent die-out and/or no-start problems.
4.) Finally, pull your gas tank and check the front ignition coil. I have seen where the grounding lugs get rusty and can/will cause an X to die out in the rain, or even in very heavy fog conditions.
Let us know what you find out.