Subaru Robin Power Products EY20V, EY15V manual Features

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PERFORMANCE CURVE

MODEL EYZOV

1.o kg-m

0.9

5

Recommended Operating'Speed'Range-

I I I I I I I )

3000	2000		3600
	Revolution	B-	r.p.m.
	Revolution	B-

3.FEATURES

1.Compact, lightweight,durable,powerful 4-cycle air-cooled engine embodyingingenious design tech- niques and skilful workmanship.

2.Simpleconstruction,smart appearance,maximum easiness of start owing to automatic decompression device

3.For EY 15V engine Pointless Solid State igntion system is newly adopted for preventing poor igniting as option, and EY20V engine is equipped with Pointless Solid State ignition system as standard specifica- tions.

4.Reliable primemover for variety of purposeswith smooth speedcontrolby a governorunder varying load conditions.

5.Economicai because fuel consumption is very low.

6.Great versatility in installation by adopting recoil starter with eight different rope-pull directions and oil drain available at bottom and carburetorside of engine, as standaed specifications.

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Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASECamshaft Connecting ROD and Piston6VALVEARRANGEMENT Cooling CylinderheadLubrication 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 Crankshaft Precaution in reassembling~Sequesnceand precautionsin reassembling MOW to ReassembleEY15V 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 14AIRCLEANERMagneto BreakerpointadjustmentTo 6-3TIMING Adjustment MagnetoTiming Adjustment See Figs ,43 C. Transistorignitioncircuit MagnetotroubleshootingSpark Testing Solidstate IgnitionPoint where the governorspring is to be hooked GovernoradjustmentDiscrimination accordingto the dimensions Page 1 Float System Carburetor2 Pilotsystem Disassembly and Reassembly1 Throttle System Float System BREAK-IN Operation of Reassembledengine IO. Robin Solid State Ignition Engine FeaturesBasic Theory of T.I.C. See Fig 11- 1-2 Compression System 11- 1 Starting Difficulties11- 4 Engine Overheats 11- 1-3ELECTRICAL System11-2ENGINGEMIFIRES 11-3ENGINE StopsEnginebackfires through Carburetor EngineknocksExhaust Gasdischarge InstallationPower Transmission to Drivenmachines VENT1LATIONBreaker Point Ignition Type WiringSolid State Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 Every 100 200 Hours Monthly Checks and Maintenance Daily Checks and MaintenanceEvery 20 Hours Checks and Maintenance 15-3EVERY 50 Hours IO Dayschecks and MaintenanceEvery 1000 Hours Yearly Checks and Maintenance Every 500 600 Hours Semiannual Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines