12
Technical data
Displacement cu in (cm3) 3.9 (64) 4.5 (73)
Bore in (mm) 1.85 (47) 1.97 (50)
Stroke in (mm) 1.46 (37) 1.46 (37)
Max. power hp (kW) 4.4 (3.2) 5.6 (4.2)
Max. torque Nm 4.0 5.0
Idling speed 1/min 2,500 2,500
Clutch engagement speed 1/min 3,800 3,800
Engine speed limitation 1/min 9,350 ± 145 9,350 ± 145
Max. spindle speed 1/min 4,300 4,300
Sound pressure level at the operators ear dB (A) 97 104
Sound pressure level at the bystander’s position (50 ft) dB (A) 84 86
Vibration acceleration ah,w per EN 1454
- Tubular handle (idle/rated spindle speed) m/s2 6 / 5 7 / 6
- Rear handle (idle/rated spindle speed) m/s2 8 / 6 8 / 7
Carburetor (diaphragm carburetor) Type TILLOTSON HS-273 A
Ignition system (with speed limitation) Type electronic
Spark plug Type
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Electrode gap in (mm) .020 (0.5) .020 (0.5)
Fuel consumption at max. load per ISO 8893 kg/h 1.65 2.1
Specic consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity  oz (l) 37 (1.1) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA HP 100 high-performance oil 100:1 100:1
- when using MAKITA oil 50:1 50:1
Cutting disc for 80 m/sec. 2) in
12" / 0.8" / 0.2"
3)
14" / 0.8" / 0.2"
3)
12" / 0.8" / 0.2"
3)
14" / 0.8" / 0.2"
3)
Cutting disc for 80 m/sec. 2) 4) in
14" / 1" / 0.2"
3)
14" / 1" / 0.2"
3)
Arbor diameter in 0.8" 0.8" / 1.0" 0.8" 0.8" / 1.0"
V-belt no. 965 300 470 965 300 470
Overall weight (tanks empty, without cutting disc) lb 21.38 21.82 21.6 22.04
Displacement cu in (cm3) 4.9 (81) 4.9 (81)
Bore in (mm) 2.05 (52) 2.05 (52)
Stroke in (mm) 1.49 (38) 1.49 (38)
Max. power hp (kW) 6.2 (4.5) 6.2 (4.5)
Max. torque Nm 5.2 5.2
Idling speed 1/min 2,500 2,500
Clutch engagement speed 1/min 3,800 3,800
Engine speed limitation 1/min 9,350 ± 145 9,350 ± 145
Max. spindle speed 1/min 4,300 3,750
Sound pressure level at the operators ear dB (A) 100 100
Sound pressure level at the bystander’s position (50 ft) dB (A) 79 79
Vibration acceleration ah,w per EN 1454
- Tubular handle (idle/rated spindle speed) m/s2 5.6 / 6.3 5.6 / 6.3
- Rear handle (idle/rated spindle speed) m/s2 8.8 / 6.0 8.8 / 6.0
Carburetor (diaphragm carburetor) Type WALBRO WJ-105
Ignition system (with speed limitation) Type electronic
Spark plug Type
NGK BPMR 7A / BOSCH WSR 6F / CHAMPION RCJ 6Y
Electrode gap in (mm) .020 (0.5) .020 (0.5)
Fuel consumption at max. load per ISO 8893 kg/h 2.3 2.3
Specic consumption at max. load per ISO 8893 g/kWh 500 500
Fuel tank capacity  oz (l) 37 (1.1) 37 (1.1)
Mixture ratio (fuel/two-stroke oil)
- when using MAKITA HP 100 high-performance oil 100:1 100:1
- when using MAKITA oil 50:1 50:1
Cutting disc for 80 m/sec. 2) in
14" / 0.8" / 0.2" 3) 16" / 0.8" / 0.2" 3)
Cutting disc for 80 m/sec. 2) 4) in
14" / 1.0" / 0.2" 3) 16" / 1.0" / 0.2" 3)
Arbor diameter in 0.8" (1.0") 4) 0.8" (1.0") 4)
V-belt no. 965 300 490 965 300 480
Overall weight (tanks empty, without cutting disc) lb 22.05 23.37
2) Circumference speed at max. engine speed
3) Outside diameter / arbor hole / thickness
4) Country-specic
DPC6410 DPC6411 DPC7310 DPC7311
DPC8111 DPC8112