Starter button "Sticking" on M900 1998...can I use WD40?

[118811]

Had to get towed today........
I noticed that my starter button is sticking....was  stuck when I GOT TO BIKE, when it wouldn't start.

My question is...can I use WD40 as a lubricant for the switch?

Thanks

[sofadriver]

I've done this in the past;
Disconnect your battery
Squirt a little WD40 on the switches (may as well do them all)
Repeatedly actuate the switch
Suck any gunk and excess WD40 out with your wet&dry vacuum
Repeat until you figure it's clean

[118811]

Thanks!!!

[He Man]

Just take it out and sand it smooth and give it a nice wax buff.

[brad black]

if the two switch block screws are overly tight that can make the button stick.  generally done if the locating knob has been broken off.

[118811]

Charged battery & cleaned switch......now all I get is single "click"
when I hit starter button.

Is the most likely starter relay?

[motoxmann]

what is clicking? the relay, or the button itsself?

you'll need to check the following (make sure it's in neutral the entire time):

put volt-meter on the trigger wire to the starter relay with ignition on. push the starter button and see if voltage appears. if yes, button is good. if no, button is bad. if yes, continue to:

put volt meter on power wire between battery and starter relay. it should have battery voltage. if it doesn't a wire or connector between the relay and battery is bad.

put volt meter on power wire between relay and starter. it should have zero volts. push the starter button, you should now see voltage. if there is power, the relay is good. if there is no change at all, and it still stays at 0 volts, the relay is bad. if it gets voltage (anything over 10), but the starter still doesn't do anything, then the starter motor is probably cooked.