so here's how to fix that problem.
What you'll need.
Phillips/flat head screwdriver
old brush(tooth brush)
soap
grease
paper towels
the switch is held on the bike by 2 Phillips screws, remove the screws then un plug the sensor connector.
once you have the switch off, I used a flat head to pry it apart.
it should split into 2 pieces
when you take it apart, be careful not to lose this piece
take out all the little parts but don't lose them!
all dirty and sticky,
just with a tooth brush and warm water, scrub the parts as much as you think you should until they are very clean.
all clean
then re assemble all the parts, put the grease in it
don't go to crazy with the grease.
clean any extra grease off so its just on the pin and spring
then just clip the top piece back on and you're good to go!
the order of the parts is.
black pin slides into the hole on the bottom of a cover, put the big spring over the pin once its in the cover, the white piece will compress the spring a little and lock onto the black pin, then drop it into the cover, put the little spring in the white square and the copper contact point over the spring.