Suzuki DF 40 User Manual

DF40QH / DF50QH 5
SERVICE DATA
POWERHEAD
Recommended operating range
r/min 5200 – 5800
Idle speed
850 ± 50 (in-gear: approx.850±50)
r/min
5900 – 6500
**Cylinder compression
1300 – 1600 (13 – 16, 185 – 228)kPa (kg/cm
2
. psi)
**Cylinder compression max.
difference between any two
cylinders
100 (1.0, 14)
kPa (kg/cm
2
. psi)
**Engine oil pressure
295 – 373 (3.0 – 3.8, 42 – 54) at 4000 r/min
(at normal operating temp.)
kPa (kg/cm
2
. psi)
Engine oil
Engine oil amounts
L (US/Imp. qt)
Thermostat operating
temperature
48 – 52 (126 – 134)°C (°F)
API classification SE, SF, SG, SH, SJ
Viscosity rating SAE 10W-40
2.2 (2.3/1.9) : Oil change only
2.4 (2.5/2.1) : Oil filter change
** Figures shown are guidelines only, not absolute service limits.
Item Unit
Data
DF40QH DF50QH

Suzuki DF 40 Specifications

General

Displacement	941 cc
Starting System	Electric
No. of Cylinders	3
Steering	Remote
Gear Ratio	2.27:1
Alternator Output	12V 19A
Engine Type	4-Stroke, DOHC
Maximum Output	40 hp
Fuel System	Multi-Point Sequential Electronic Fuel Injection
Shaft Length	S: 381 mm, L: 508 mm
Oil Capacity	2.7 L