Checking The Ignition Timing - SELVA MARINE Wahoo 15 Service Manual

Engine idle speed: 1,050 ± 50 r/min
3. Turn the throttle stop screw 2 in direc-
tion a or b until the specified engine
idle speed is obtained.
b a
NOTE:
• To increase the engine idle speed, turn the
throttle stop screw 2 in direction a.
• To decrease the engine idle speed, turn the
throttle stop screw 2 in direction b.
4. After adjusting the engine idle speed, rev
the engine a few times and let it idle to
check the stability of the engine.

Checking the ignition timing

1. Start the engine and warm it up for 10
minutes.
NOTE:
Because the Prime Start operates when the
engine is started, the engine idle speed will
be above specification. Therefore, check and
adjust the engine idle speed after the engine
has been warmed up.
2. Attach the special service tool to spark
plug wire #1.
6AG3J11
2
3. Check that the pointer a is aligned with
the "T" mark on the flywheel magnet as
shown.
S6AG3160
3
Control system
Timing light: 90890-03141
5
T
a
Ignition timing at 1,050 r/min:
TDC ± 1.5°
1
2
S6AG3180
3
4
5
S6AG3190
6
7
8
9
3-12