Yamaha F350B - Checking the Engine Idle Speed

10-13
General periodic maintenance
Checking the cooling water inlet
1. Check:
• Cooling water inlet
Clogged  Clean.
a. Remove the water inlet covers “1”, “2”, out-
let cover “3” and anode “4”.
b. Check the water inlet covers and water in-
lets.
c. Install the water inlet covers “1”, “2”, outlet
cover “3” and anode “4”, and then tighten
the water inlet cover screws “5”, water out-
let cover screw “6” and anode bolt “7” to
the specified torque.
TIP:
After installing the water inlet covers “1”, “2”
and outlet cover “3” make sure that there is no
rattling.
Checking the engine idle speed
1. Check:
• Engine idling speed
Out of specification  Perform the trouble-
shooting procedures. See “Troubleshoot-
ing procedure” (4-5).
a. Check the engine idle speed using the
YDIS. See the YDIS (latest version) in-
struction manual.
Changing the engine oil using an oil
changer
Change the engine oil after the first 20
hours of operation or 3 months, and every
100 hours or at 1-year intervals thereafter.
1. Warm up:
• Engine
a. Place the outboard motor in an upright po-
sition.
If the outboard motor is not level, the oil lev-
el indicated on the dipstick may not be cor-
rect.
b. Start the engine and warm it up for 5–10
minutes.
c. Stop the engine and leave it off for 5–10
minutes.
2. Remove:
• Top cowling
Water inlet cover screw “5”
2.0 N·m (0.20 kgf·m, 1.5 lb·ft)
Water outlet cover screw “6”
2.0 N·m (0.20 kgf·m, 1.5 lb·ft)
Anode bolt “7”
42 N·m (4.2 kgf·m, 31 lb·ft)
1
2
3
1
2
3
6
5
5
4
7
T
R
.
.
Idle speed (in neutral)
600–700 r/min