'91 yamaha 115 wiring???

mikesjohnson

Seaman Apprentice
Joined
Nov 2, 2006
Messages
44
just mounted ny 115 and i cant figure out the dang wiring. where do the power and grounds from the battery hook up? i also have a fused red wire that i cant seem to find the non fused end to. there is also three small wire comming from the t/t motor that have no connection. can someone point me to a wiring diagram for this engine? or atleast tell me what to look for.
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
Re: '91 yamaha 115 wiring???

They go to the Starter solinoid for the postive and the starter (large bolt) for ground. The other end of the fuse holder should be on the battery postive cable. What color are the three wires> May be the trim control wires and hook up color to color to wiring from relay.
 

mikesjohnson

Seaman Apprentice
Joined
Nov 2, 2006
Messages
44
Re: '91 yamaha 115 wiring???

ok. so i hooked up the ground, but when i hook up the positive (does not matter if on the t/t relays, or the starter relay) the starter motor starts to spinning up the motor. am i on the wrong side of the realy, and am i hooking up to the right relay (the bottom of the three, hooked up to the front side of the relay)? i dont have the origonal wiring for the battery leads, so am i correct if i wire a 12v supply to the fused wire from the + side battery lead? thanks for the help
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
Re: '91 yamaha 115 wiring???

Yes, you are on the wrong side of the solinoid. Will have to make a jumper to hook it up to the same side of the solinoid as the battery cable.
 
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