Predelivery Checks; Checking The Fuel System; Checking The Engine Oil Level; Checking The Gear Oil - Yamaha F15B Service Manual

Predelivery checks

To make the delivery process smooth and
efficient, the predelivery checks should be
completed as explained below.

Checking the fuel system

1. Check that the fuel hose is securely con-
nected and that the fuel tank is filled with
fuel.
cC
This is a 4-stroke engine. Never use pre-
mixed fuel.

Checking the engine oil level

1. Check the oil level.
a
b
NOTE:
9 If the engine oil is above the maximum level
mark a, drain sufficient oil until the level is
between a and b.
9 If the engine oil is below the minimum level
mark b, add sufficient oil until the level is
between a and b.
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Identification/Propeller selection/Predelivery checks

Checking the gear oil

1. Check the gear oil level.
NOTE:
The gear oil level should be at the brim of the
check hole.
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Checking the outboard motor
mounting height
1. Check that the anti-cavitation plate is
between the bottom of the boat and a
maximum of 25 mm (1 in) a below it. If
the mounting height is too high, cavitation
will occur and propulsion will be reduced.
Also, the engine speed will increase
abnormally and cause the engine to over-
heat. If the mounting height is too low,
water resistance will increase and reduce
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engine efficiency.
Recommended engine oil:
4-stroke outboard motor oil
API: SE, SF, SG, SH or SJ
SAE: 10W-30 or 10W-40
Oil quantity:
(without oil filter replacement)
1.0 L (1.06 US qt, 0.88 Imp qt)
Recommended gear oil:
Hypoid gear oil
SAE: 90
Oil quantity:
0.25 L (8.45 US oz, 8.82 Imp oz)
0—25mm
a
(0—1in.)
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