Inspection Of Idle Speed; Inspection Of Ignition Timing - TOHATSU MFS 60A Service Manual

Maintenance

2) Inspection of Idle Speed

1. Start engine and run for 5 minutes to warm up.
2. Check idle speed to use tachometer or diagnostic program.
Tachometer :
P/N. 3GF-72647-1
Idle Speed :
RPM
850-± 30 r/min

3) Inspection of Ignition Timing

Adjusting system : Automatic control, requiring no manual
adjustment.
Run engine and use timing light to check ignition timing.
9 timing marks are found on the side of flywheel (TDC0°,
ATDC5°, 10°, BTDC5°, 10°, 15°, 20°, 25°, 30°), and ignition
timing is read with mark on the center of starter case
window.
Outboard Model
MFS60A
3-4
Range of Ignition Angle
ATDC 5° - BTDC 20°
Engine Starting Idling
TDC 0° ATDC 5°±5°
Accelerating
BTDC 20°
4st 60 2019