Yamaha Stern Drives 1989-1991 Service Repair Shop Manual Download

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QUICK REFERENCE DATA ENGINE OIL VISCOSITY'' Anticipated temperature range

Recommended viscosity

F (-20° C) to 32*^ F (0^ C)

SAE 10W SAE 20W or SAE 20 SAE 30 SAE 40

32° F (0° C) to 86° F (20° C) 40'* F (4^ C) to 90^ F (32^ C) and above

* Yamaha does not recommend the use of multi-grade oil In stern drive engines. However, if the recommended singie-grade oli is not avaiiabie, 20W-40 SE or SF muiti-grade oil can be used. 20W-50 SE or SF oii can be used as a last resort. If a multi-grade oi! is used, change the oil and replace the oil fiiter as soon as possibie.

APPROXIMATE ENGINE OIL CAPACITIES Engine

Capacity with filter

3,0L 4.3U5.0L/5.7L

3.8L (4 qt.) 4.7L (5 qt.)

APPROXIMATE STERN DRIVE CAPACITIES Model

Capacity

Aii modeis

1.8L(1.9qt.)*

*Use Yamaha Gear Case Lube

ENGINE COMPRESSION Model

Standard kg/cm^ (psi)

Limit kg/cm^ (psi)

3.0L 4.3L 5.0L/5.7L

9.8(140) 12.7(180) 10.5(150)

7(100) 7(100) 7(100)

SPARK PLUG SPECIFICATIONS Model

Type

Gap mm (in.)

3.0U4,3U5.7L

AC-MR43T NGK BR6FS AC-MR44T NGK BR6FS

0.09 (0.035) 0.09 (0.035) 0.09 (0.035) 0.09 (0.035)

5.0L

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