Key/Ignition not working sometimes

Hey so once and a while I go to start quad and no go. cycle key off/lights/on back forth and itthe it starts up. good for a week or more, sometimes same day. even happens with both keys i have. Its frustrating when im out on a ride go to start it and nothing. Its like the chip key is broken. Is there a way to clean inside the key hole? i dont think its the key itself because its happening to my grey key which i rarely use.
Suggestions how to clean before i buy new switch?

Thanks