Re: Amp rating for tilt switch
if you want to use relays on your 3w motor then just pull the ground wire off post #87a. Post 87a should just be left as an open circuit. Do not disconnect ground from the engine block. You have to disconnect at the relay terminal 87a. The relay will not operate without ground on post #86.
After making this modification anf Mercury, Mariner, or Force 2w relay wiring harness will support 3w motors using the $3 Bosch style relay. Try to get relays that are glued together rather than snapped. The glued ones are waterproof and won't accidentally pull apart. Yopur modified relay harness work with 2w motors until you reconnect post 87a.