Subaru Robin Power Products EY20V, EY15V manual SPEC1FICATIONS, Model

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1.SPEC1FICATIONS

Model

Type

I Bore x Stroke (in)

I Piston Displacement (cu. in) I Compression Ratio

Continuous Rated Output (HP/rpm)

Max. Output (HPIrpm)

Max. Torque (kg-m/rpm)

t

Rotation

Cooling System

Fubrication

I Lubricant

I Carburetor

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Fuel

Fuel Consumption Ratio (gr/Hp-h) fuel Feed

I Reduction

Speed Governor

Ignition System

Spark Plug

Starting System

Dry weight (Ibs.)

Length (in)

Dimensions Width (in)

I	Height (in)

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EY15V			EYPOV
Air-Cooled, 4-Cycle, Verticle Shaft, Single Cylinder Gasoline Engine
63mm x 46 mm (2.48" x 1.81")	I	67 mm x 52 mm (2.64" x 2.05")
	1	~	~~~	_____	~~
143 cc (8.73 cu. in)	1		.183cc(11.17cu.in)
	6.3
2.213,OOO			313,000
2.7/3,600			3.513.600
			~~	~~	~
3.5/3,600			4.613.600
0.712,800	I		0.9512.800
	I
Counter-clockwisefacing to P.T.O. shaft
Forced Air Cooling
Splashing Type
Automobile Oil Class SC
Horizontal Draft, Flat Type
Automobile Gasoline
280 a t continuous rated output operation
Gravity Type
Approx. 1.5 liter (0.4 U.S. gal.)
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Centrifugal Flyweight Type
Flywheel Magneto Type			Flywheel Magneto Type
(Solid State Ignition is avilable as option.) (Solid			State lgntion is standard.)
NGK BM4A
Recoil Starter (Rope Type is available, if required.)
12.7 kg (28 Ibs.)			14.5 kg (31.9 Ibs.)
371 mm (14.6")			383 mm ( 15.08")
305 mm ( 12.0")			31 1 mm (12.24")
344 mm (13.5")			356 mm (14.02")

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Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASE6VALVEARRANGEMENT Connecting ROD and PistonCamshaft Lubrication CylinderheadCooling 112CARBURETOR 111IGNITIONModel EY15V Sectional View of EngineAir Cleaner Muffler Cover Model EY20V Model EY20V Special Tools Preparations and SuggestionsApplicalbeShape Model Order 3HOW to DisassembleTool Order Exhaust valve Main bearing cover Procedures Remarks OrderProcedures ~Sequesnceand precautionsin reassembling Precaution in reassemblingMOW to Reassemble CrankshaftEY15V Eyzov Dimensions of Crankshaft PinPeriphery.I Y20 5 Mainbearing Cover Valve and Valve Guide Clearance 6INTAKE and Exhaust Valves7TAPPET Adjustment Kg-cm ’ 5-4-8CYLINDER HeadIntake Manifold 1FUEL Tank Bracket1 7 Recoil Starter 14AIRCLEANERTo 6-3TIMING Adjustment BreakerpointadjustmentMagneto MagnetoTiming Adjustment See Figs ,43 Spark Testing MagnetotroubleshootingSolidstate Ignition C. TransistorignitioncircuitDiscrimination accordingto the dimensions GovernoradjustmentPoint where the governorspring is to be hooked Page 1 Float System Carburetor1 Throttle System Disassembly and Reassembly2 Pilotsystem Float System BREAK-IN Operation of Reassembledengine Basic Theory of T.I.C. See Fig FeaturesIO. Robin Solid State Ignition Engine 11- 1-2 Compression System 11- 1 Starting Difficulties11-2ENGINGEMIFIRES 11- 1-3ELECTRICAL System11-3ENGINE Stops 11- 4 Engine OverheatsEnginebackfires through Carburetor EngineknocksPower Transmission to Drivenmachines InstallationVENT1LATION Exhaust GasdischargeSolid State Ignition Type WiringBreaker Point Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 Every 20 Hours Checks and Maintenance Daily Checks and Maintenance15-3EVERY 50 Hours IO Dayschecks and Maintenance Every 100 200 Hours Monthly Checks and MaintenancePREPARATiON for Longabeyance Every 500 600 Hours Semiannual Checks and MaintenanceEvery 1000 Hours Yearly Checks and Maintenance Page Page Page Page Industrial Engines