Maruyama MCV51 - Technical Specifications; MCV51 Chainsaw Performance Data; Component Identification; Chainsaw Parts Diagram

9
2
24 25
16
17
18 19
3
4
1
6
7
15
5
8
9
111213
20212223
1014
Technical data
Stroke volume cu. in (cm
3
) 3.1 (50.0)
Bore inch (mm) 1.77 (45)
Stroke inch (mm) 1.24 (31.44)
Max. power at speed hp / rpm 2.8 / 10,000
Max. torque at speed Nm / rpm 3.1 / 7,000
Max. engine speed with bar and chain rpm 13,800
Idling speed rpm 2,500
Coupling speed rpm 3,900
Sound Pressure Level at the operator‘s ear
at full load according to ANSI B 175.1 db(A) 103.9
Sound Pressure Level at the bystander‘s position
(50 ft/15 m distance) according to ANSI B 175.1 db(A) 76.2
Carburetor Type ZAMA
Ignition system Type electronic ignition system
Spark plug Type NGK BPMR 7A
or spark plug Type BOSCH WSR-6F
Electrode gap inch (mm) .020 (0.5)
Fuel consumption at max. load per ISO 7293 kg/h 1.3
Specicconsumptionatmax.loadperISO7293 g/kWh  450
Fueltankcapacity oz  15.9
Chainoiltankcapacity oz  9.1
Mixture ratio (fuel/two-stroke oil)
- when using MARUYAMA High Performance oil 50:1
- when using other synthetic oils 50:1 (oil quality must be JASO FD or ISO-L-EGD)
Chain brake engages manually or in case of kickback
Sprocket pitch inch .325 or 3/8
Number of teeth Z 7
Chain type see the Extract from the spare-parts list
Pitch / gauge inch .325 / 0.050 or 3/8 / 0.050
Guide bar, length of a cut inch 16 / 18 / 20
Guide-bar type see the Extract from the spare-parts list
Weight
(fuel tank empty, without chain, guide bar and accessories) lbs/kg 11.2 / 5.1
1)
Figures derived in equal part from idling, full-load and top-speed.
2)
Figures derived in equal part from full-load and top-speed.
3)
Uncertainty (K=).
MCV51
Denomination of components
1 Handle
2 Cover
3 Cover clasp
4 Tubular handle
5 Hand guard
(release for chain brake)
6 Mufer
7 Spike bar
8 Chain tensioning screw
9 Retaining nuts
10 Chain catch
11 Sprocket guard
12 Adjusting screw for oil pump (bottom side)
13 Adjusting screws for carburetor
14 Switch for grip heating (only on “H” model saws)
15 Identicationplate
16 Starter grip
17 Combination switch (Choke / Start / Stop)
18 Throttle lever
19 Safety locking button
20 Rear hand guard
21 Fuel tank cap
22 Fan housing with starting assembly
23 Oil tank cap
24 Guide bar
25 Chain (Blade)
Identicationplate(15)
Indicate when ordering spare parts
Serial number
Year of
manufacture