Spent $300 and no fix! c115 Powertrim

LA3

Cadet
Joined
May 22, 2004
Messages
18
OK guys! Who can help me.
1991 Yamaha C115.
New trim switch in handle, down relay, and starter relay.
Now the up does not work.
Started with both up and down clicking.
No motor movement. But, I could cross over relays with
screwdriver and make engine move.
So, now where do I look.

Nothing is working. Just a click on the starter realy when
I push the down button.

Where else can I look?????
Please help
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Spent $300 and no fix! c115 Powertrim

you can start by looking in the service manual. why would you replace a starter solinoid because the trim does not work ?
does your trim motor use three wires or two?
 

LA3

Cadet
Joined
May 22, 2004
Messages
18
Re: Spent $300 and no fix! c115 Powertrim

well local guy said "since" the starter relay is clicking then it is not passing the current along".
So, I did. I don't have service manual. And not mechanic.
It has 3 wires. Blue, Green, Tan'ish...


rodbolt said:
you can start by looking in the service manual. why would you replace a starter solinoid because the trim does not work ?
does your trim motor use three wires or two?
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Spent $300 and no fix! c115 Powertrim

from the trim motor, if you have 2 wires, the system works by the relays selecting wich wire is grounded and which has 12V+. when the small blue wire for up at the solinoid has 12V applied the relay contact closes and applys 12+ to the blue 10Ga motor wire. at rest the solinoids default to ground so the green wire solinoid is the trim motor current path to ground. when the small green wire for the down solinoid is triggered with 12+ it causes the down solinoid contacts to close applying 12V+ to the green wire. as the up solinoid is now at rest the current path to ground is through the blue wire up solinoid and the trim motor runs the opposite direction and the system goes down. the power tap comes from the battery terminal side of the starter solinoid because its handy.
other than that the start solinoid is totaly seperate from the trim solinoids.
do you have a multimeter ?
 

LA3

Cadet
Joined
May 22, 2004
Messages
18
Re: Spent $300 and no fix! c115 Powertrim

Yes have mutlimeter.

rodbolt said:
from the trim motor, if you have 2 wires, the system works by the relays selecting wich wire is grounded and which has 12V+. when the small blue wire for up at the solinoid has 12V applied the relay contact closes and applys 12+ to the blue 10Ga motor wire. at rest the solinoids default to ground so the green wire solinoid is the trim motor current path to ground. when the small green wire for the down solinoid is triggered with 12+ it causes the down solinoid contacts to close applying 12V+ to the green wire. as the up solinoid is now at rest the current path to ground is through the blue wire up solinoid and the trim motor runs the opposite direction and the system goes down. the power tap comes from the battery terminal side of the starter solinoid because its handy.
other than that the start solinoid is totaly seperate from the trim solinoids.
do you have a multimeter ?
 
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