Valach VM 120 B2-4T User Manual

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Valach VM 120 B2-4T Instructions
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Specications Valach VM 120 B2-4T
Design: Four-stroke at twin engine OHV, 2 valves per cylinder, petroil lubrication.
Capacity: 120ccm
Power: approx.10hp
Bore: 47mm
Stroke: 35mm
Width over valve cover: 310 mm
Length: 168mm (engine mount to front side of prop hub)
Prop screw divided circle: 34 mm
Prop screws: 6 pieces M5 Hex socket screw
Thread prop shaft: M10x1
Engine mount: with four M6 Hex socket screws.
Weight: 3800 g (including ignition and prop screws)
Idle RPM: 900 RPM
Maximum RPM: 6200RPM
Recommended RPM range: 4500 to 5000 RPM on the ground (!)
Fuel mixture: 1:30 (1:25 while breaking-in)
Gasoline: At least 95 octane, ideal BP/Aral Ultimate 102
Oil: Valvoline SynPower 2T
Breaking-in time: 3 hours, the rst 2 hours with 1:25 mixture
Needle setting:
Low speed needle (L): 1 3/4 turns factory setting for breaking-in
1 1/4 turns later with intake RAM tube (!)
High speed needle (H): 2 turns factory setting for breaking-in
1 1/2 turns later with intake RAM tube (!)
Ignition: Valach microprocessor ignition.
Voltage range: 4.8-9 Volt, ideal 7.4 V (2 Lipo cells)
Safety shut o: automaticly after 1 minute of the prop being stationary.
Spark plug: NGK CM-6
Spark plug gap: 0.4 mm
Valve gap: 0.1 mm
Maintenance intervall:
Checking the valve gap: All 4-5 hours, while breaking-in after 10, 20 and then 30 minutes.
Lubricating of rocker arm bearings and valve shafts: All 4-5 hours, while checking the
valve gap.

Valach VM 120 B2-4T Specifications

General

Brand	Valach
Model	VM 120 B2-4T
Category	Engine
Language	English