Service manual

4-24
E
FUEL
FUEL INJECTION SYSTEM
Throttle position sensor output
voltage:
Pink (P) – Black/Orange (B/O)
0.8
±
0.1 V
NOTE:
• To decrease the output voltage, turn the
throttle position sensor clockwise.
• Slightly tighten the throttle position screw.
p. Start the engine and let it run at trolling
speed for 20 minutes.
NOTE:
• Warm the engine up in the water.
• While checking the engine temperature
with the Yamaha Diagnostic System,
warm the engine up until the engine tem-
perature is 50 °C (122 °F).
q. Adjust the throttle stop screw
2
until
trolling speed is within specification.
Trolling speed:
Season Temperature
Specified
engine speed
Summer
30 °C (86 °F)
or more
1,650 r/min
Winter
10 °C (50 °F)
or less
1,720 r/min
Spring/
Fall
20 °C (68 °F) 1,680 r/min
r. Adjust each cylinder to the cylinder dif-
ferences shown in the table using syn-
chronizing screws
3
–
5
and using
cylinder #2 as the standard.
0 5 10 15 20 25 30 35 40 45 50
1,740
1,720
1,700
1,680
1,660
1,640
1,620
1,600
˚
C
r/min