Stihl BG 86 Product Instruction Manual - Page 27

Engine, Ignition System, Fuel System, Maximum air flow rate, Air velocity, Weight - blower carburetor

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Engine Maximum air flow rate Weight English Single cylinder two-stroke engine Displacement: 1.66 cu in (27.2 cc) Bore: 1.34 in (34 mm) Stroke: 1.18 in (30 mm) Idle speed: 2.500 rpm Engine power to ISO 7293: BG 56: 0.7 kW (0.9 hp) BG 66: 0.6 kW (0.8 hp) BG 86: 0.8 kW (1.1 hp) SH 56: 0.7 kW (0.9 hp) SH 86: 0.8 kW (1.1 hp) Ignition System BG 56: BG 66: BG 86: SH 56: SH 86: Blower mode, without nozzle Vacuum mode 430 cf/min (730 m3/h) - - - 430 cf/min (730 m3/h) - - - 477 cf/min (810 m3/h) - - - 430 cf/min 418 cf/min (730 m3/h) (710 m3/h) 477 cf/min 453 cf/min (810 m3/h) (770 m3/h) Air velocity Dry, blower mode BG 56: BG 56 C: BG 66: BG 86: BG 86 C: 9.0 lbs (4.1 kg) 9.3 lbs (4.2 kg) 9.7 lbs (4.4 kg) 9.7 lbs (4.4 kg) 9.9 lbs (4.5 kg) Dry, vacuum mode SH 56: 11.5 lbs (5.3 kg) SH 86: 12.2 lbs (5.7 kg) Electronic magneto ignition Spark plug (suppressed): Electrode gap: NGK CMR 6 H 0.020 in (0.5 mm) Fuel System All position diaphragm carburetor with integral fuel pump Fuel tank capacity: BG 56: 18.3 oz (0,54 L) BG 66: 18.3 oz (0,54 L) BG 86: 14.9 oz (0,44 L) SH 56: 18.3 oz (0,54 L) SH 86: 14.9 oz (0,44 L) Blower mode, at round nozzle BG 56: 143 mph (64 m/sec) BG 66: 143 mph (64 m/sec) BG 86: 154 mph (69 m/sec) SH 56: 143 mph (64 m/sec) SH 86: 154 mph (69 m/sec) Blower mode, at fan nozzle BG 86: 190 mph (85 m/sec) SH 86: 190 mph (85 m/sec) BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C 25

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BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C
English
25
Engine
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
Maximum air flow rate
Air velocity
Weight
Single cylinder two-stroke engine
Displacement:
1.66 cu in
(27.2 cc)
Bore:
1.34 in (34 mm)
Stroke:
1.18 in (30 mm)
Idle speed:
2.500 rpm
Engine power to ISO 7293:
BG 56:
0.7 kW (0.9 hp)
BG 66:
0.6 kW (0.8 hp)
BG 86:
0.8 kW (1.1 hp)
SH 56:
0.7 kW (0.9 hp)
SH 86:
0.8 kW (1.1 hp)
Spark plug
(suppressed):
NGK CMR 6 H
Electrode gap:
0.020 in
(0.5 mm)
Fuel tank capacity:
BG 56:
18.3 oz (0,54 L)
BG 66:
18.3 oz (0,54 L)
BG 86:
14.9 oz (0,44 L)
SH 56:
18.3 oz (0,54 L)
SH 86:
14.9 oz (0,44 L)
Blower mode,
without
nozzle
Vacuum mode
BG 56:
430 cf/min
(730 m
3
/h)
- - -
BG 66:
430 cf/min
(730 m
3
/h)
- - -
BG 86:
477 cf/min
(810 m
3
/h)
- - -
SH 56:
430 cf/min
(730 m
3
/h)
418 cf/min
(710 m
3
/h)
SH 86:
477 cf/min
(810 m
3
/h)
453 cf/min
(770 m
3
/h)
Blower mode, at round nozzle
BG 56:
143 mph
(64 m/sec)
BG 66:
143 mph
(64 m/sec)
BG 86:
154 mph
(69 m/sec)
SH 56:
143 mph
(64 m/sec)
SH 86:
154 mph
(69 m/sec)
Blower mode, at fan nozzle
BG 86:
190 mph
(85 m/sec)
SH 86:
190 mph
(85 m/sec)
Dry, blower mode
BG 56:
9.0 lbs (4.1 kg)
BG 56 C:
9.3 lbs (4.2 kg)
BG 66:
9.7 lbs (4.4 kg)
BG 86:
9.7 lbs (4.4 kg)
BG 86 C:
9.9 lbs (4.5 kg)
Dry, vacuum mode
SH 56:
11.5 lbs (5.3 kg)
SH 86:
12.2 lbs (5.7 kg)