Bypassing the key switch on a Yamaha Raptor is not advisable and can compromise the security of your vehicle. Instead, if you're experiencing issues with the key switch, it's best to address the root cause by either replacing the ignition cylinder, key, or any malfunctioning components.
If you're dealing with a lost key, you can obtain a replacement from an authorized Yamaha dealer or a professional locksmith. Alternatively, you can also have a new ignition cylinder installed by a qualified mechanic.