Suzuki DF 50 Service Manual

18 DF40QH / DF50QH
B
G
W
Gr
Br
O
O
Ignition switch
from ECM
B
G
W
Gr
Br
Gr
O
O
Gr
Gr
Ignition switch
from ECM
ENGINE CONTROL SYSTEM
The engine control systems such as ignition and fuel injec-
tion are basically the same as DF40/50T model specification
except for the following:
Caution / Diagnostic System
Caution and Diagnostic system operator alert signals are audio
only on QH models. Alerts will be signaled by a sound se-
quence from the caution buzzer contained in the tiller handle.
When any caution system is activated, the diagnostic code
buzzer sound sequence for that caution will be the same as
that of a T- specification model.
Refer to the illustration for the QH model buzzer sound se-
quence (ON/OFF pattern) of caution and diagnostic signals.
NOTE:
The buzzer cancellation feature found on T-specification Mod-
els is not available on QH models. Due to this features re-
moval, the ignition switch and the function of the orange lead
extending from ECM to the ignition switch is different between
T and QH specifications.
QH models
T models
Buzzer ON/OFF pattern
A. Caution signal
ON
OFF
1.5 sec.
7 sec.
B. Diagnostic signals
ON
OFF
0.2 sec. 3 sec. 0.2 sec. 5 sec.
1.3 sec.
[EX] : Code 2–3
• When engine is at stop and Ign. Key is turned ON
• During engine operation
ON
OFF
0.2 sec.
4.8 sec.
1.5 sec.
7 sec.
1.3 sec.
4.8 sec.
0.2 sec.

Suzuki DF 50 Specifications

General

Engine Type	4-Stroke
Cylinders	3
Displacement	941 cc
Starting System	Electric
Steering	Remote
Engine Type Detail	DOHC 12-Valve
Maximum Output	50 HP
Ignition System	Digital CDI
Alternator	12V 19A
Gear Ratio	2.27:1
Exhaust	Through Prop Hub Exhaust
Trim Method	Power Trim and Tilt
Max Power	50 HP
Alternator Output	12V 19A
Fuel Delivery System	Sequential Multi Point Electronic Fuel Injection
Full Throttle Operating Range	5, 300 - 6, 300 rpm
Engine Oil Capacity	2.7 L
Full Throttle RPM Range	5300 - 6300 RPM
Oil Capacity	2.7 L
Bore x Stroke	72.5 x 76.0 mm (2.85 x 2.99 in.)