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Maintenance
Matters
Engine Oil<br>& Lube
Lower<br>Unit
Fuel &<br>Fuel System
Power Trim<br>& Tilt
Electrical<br>System
Corrosion<br>Prevention
Extended<br>Storage
Propeller<br>Solutions
External<br>Appearance
Additional<br>Tasks

STAY AT PEAK PERFORMANCE

Power Trim and Tilt Icon The power trim and tilt (PT&T) unit changes an outboard’s thrust angle for maximum performance. When activated, the PT&T’s electric pump moves hydraulic fluid, tilting the thrust angle out or in. Because it’s inside the engine bracket, it’s in almost constant contact with water. Let’s go over the lubricants and minimal maintenance it takes to keep your PT&T functioning properly.

CHOOSE YAMALUBE®

Prevents corrosion and rust, and resists wash off, heat, pressure, and harsh conditions.

Yamalube Marine Grease
Yamalube Marine Grease
Shop Yamalube products at your nearest authorized Yamaha Marine dealer. Find your dealer.
A Yamaha Outboard with a bottle of Yamalube Performance Trim & Tilt Fluid in the foreground.

Your PT&T system is under extreme pressure that can cause molecular shear, resulting in loss of lubricity.

Never substitute oils like motor oil or power steering fluid. Yamalube Performance Power Trim & Tilt Fluid is specially formulated to tolerate water ingestion and withstand extreme pressures to maintain proper operation. It also contains special anti-foaming agents the others don’t.

Do It Yourself

Two boaters cleaning the back of the boat with a broom and water hose.
Remember to rinse. Include the PT&T unit in your post-trip flushing and wash down procedure. First, run over it gently with a sponge or soft cloth soaped up with mild detergent like Yamaclean. Then, spray the whole unit down with fresh, clean water.
A close-up of the trim rams and seals on a Yamaha Outboard power trim and tilt unit with a bottle of Yamalube Marine Grease in the foreground.
Look and listen. Periodically grease the top of the trim rams on your PT&T unit to help keep them safe from corrosion and to eliminate squeaking and popping noises. Be sure to use a high-quality marine-formula grease, like Yamalube Marine Grease.

Check the valves and seals. If you see fluid on the outside of the PT&T unit, or if your outboard won’t stay tilted up (or stay tilted out when running), the seals or internal valves might need inspection. Have the unit inspected by an authorized Yamaha Marine dealer.
Someone installing a Yamaha engine support to hold the engine in the tilt-up position.
Protect from corrosion. Keep the trim rams fully retracted when not in use to prevent corrosion build-up. Engage the tilt lock mechanism built into the outboard’s bracket, or install a Yamaha engine support to hold the engine in the tilt-up position. Then, withdraw the tilt rams into the unit by pressing the PT&T down button until they are fully retracted. This keeps all but the very tip of the ram immersed in a bath of PT&T fluid and safe from corrosion. Liberally apply Marine Grease to the ram tips to help keep them corrosion free, too. 
TIP: The built-in tilt lock mechanism is for maintaining tilt for storage or periods of non-use only, such as when mooring. Do not trailer using only this mechanism to support the tilted outboard.

Fill it up with the good stuff. If your PT&T system won’t maintain a tilt when the engine is stored or running, check the unit’s fluid level and add Yamalube Performance Power Trim & Tilt Fluid if needed.
A phone with the Siren Marine App open to maintenance information.

DOES YOUR PT&T NEED SOME TLC?

Know instantly with the Siren Connected Boat<sup>™</sup> App

A phone with the Siren Marine App open to maintenance information. When was the last time you greased your trim rams or added PT&T fluid? Stay on top of your maintenance with the Siren Connected Boat app. It tracks DIY and dealer-completed service right on your smartphone.

LEARN MORE ABOUT OUR FREE APP