How do you test a tilt trim motor?

Touch the other end to the blue wire on the motor. As soon as you touch the battery cable to the blue wire, the motor should start to spin clockwise. If the motor fails to spin, then it is defective and needs to be replaced.

How do you jump a trim solenoid?

Use a short piece of wire as a jumper and jump it across the small red and small blue wires on the UP solenoid. MOTOR SHOULD RUN but may just click. IF IT JUST CLICKS then jump across the large red and large blue wires.

Why won’t my boat motor trim up?

If the motor operates, then the problem is a lack of power to the motor (faulty solenoid or relay, bad connections, etc.). Failed solenoids, relays and corrosion (at connections, relay sockets, quick-disconnect plugs, etc.) are some of the most common problems associated with tilt and trim system failure.

Can you bypass a trim relay?

You can also pull out a relay (one at a time) and place a temporary wire jumper inside the relay socket across terminal 87 (the +12DC input voltage source) and terminal 30 (the outgoing wire to the trim/tilt pump motor) to make the motor run.

How do you manually tilt an inboard motor?

Reach to the back of the engine housing to the back transom — the very back edge of the boat. Look for two metal pins connecting the shaft to the trim-motor. Use an adjustable wrench to unscrew the pins from the trim motor, preparing the shaft-propeller to be raised manually. Leave the cowling open.

What are your tilt and trim troubleshooting tips?

Tilt and Trim troubles? Here are some top tips for tilt and trim troubleshooting. The time you most appreciate your motor’s tilt and trim feature is when it fails. At that point, all phases of boat operation have degraded. You can’t trim your motor for better fuel economy or raise it to avoid damage when trailering.

What kind of motor does a tilt/trim system use?

All tilt/trim systems use a 12-volt DC reversing-type motor that has one green wire and one blue power wire. If you’re dealing with an older system, the motor may also have a third, black wire, which is used to provide ground to motors that don’t receive it through their casing.

How do I fix the trim/tilt problem on the limit switch?

Change the solenoid. For the trim/tilt problem you are experiencing, if the wires from the limit switch (port side) and trim position sender (starboard side) are in good condition, they (Switch or sender) can be disassembled to clean out the old hardened grease. SCRIBE the sides of each one and the OD for a reference mark before removal.

How does a tilt and trim unit work?

The electric motor operates the hydraulic pump which forces the fluid to the cylinders or rams that move the motor up or down to trim during operation and for trailering. If your tilt and trim unit fails to operate, the following steps should help you identify the problem or at least point you in the right direction.