Yamaha F150 Service Manual download pdf (Page 247)

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Checking the tilt cylinder and trim

cylinder

1. Disassemble the tilt piston assembly.

2. Check the tilt piston and free piston for

scratches. Replace if necessary.

3. Blow the tilt piston absorber valve with

compressed air to remove any foreign

material. Check the valve for wear and

the spring for deterioration. Replace if

necessary.

4. Check the tilt ram for bends or excessive

corrosion. Polish with 400- to 600-grit

sandpaper if there is light rust or replace

if necessary.

5. Check the trim pistons for scratches.

Replace if necessary.

6. Check the trim rams for bends or exces-

sive corrosion. Polish with 400- to 600-

grit sandpaper if there is light rust or

replace if necessary.

7. Check the inner walls of the trim and tilt

cylinders for scratches. Replace if neces-

sary.

S60X7570

Power trim and tilt unit

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