Subaru Robin Power Products EY20V, EY15V manual Float System

Page 39

8 - 2 - 4 MAIN SYSTEM

1)Remove the bolt (20) and take out float chamber body(18).

D	Remove the main jet(2 1) from. the body( 14)
2)	Remove the main jet(2 1) from. the body( 14)
3)	Reassembly
	a) Fasten the main jet securely to the body. Otherwise, the fuel may become too rich and cause engine
	malfunction.
	b) The bolt tightening torque is 70 kg-cm.

8-2-5 FLOAT SYSTEM

1)Pull out the floatpin (1 7) and remove the float (1 6 ) and needle valve (25). If the needle valve need be re-

placed, replace it with rubber needle.

Caution: When cleaning the jets, use neither a drill nor a wire (because of possible damage of the orifice which will adversely affect fuel flow). Be sure to use compressed air to blow them clean.

2)When removing the needle valve and flots, gently tap the reverse side using the rod more slender than the float pin and remove because the float pin is calked to the carburetor body.

-35 -

Image 39

Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASEConnecting ROD and Piston Camshaft6VALVEARRANGEMENT Cylinderhead CoolingLubrication 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 IgnitionGovernoradjustment Point where the governorspring is to be hookedDiscrimination accordingto the dimensions Page 1 Float System CarburetorDisassembly and Reassembly 2 Pilotsystem1 Throttle System Float System BREAK-IN Operation of Reassembledengine Features IO. Robin Solid State Ignition EngineBasic 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 VENT1LATIONWiring Breaker Point Ignition TypeSolid 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 500 600 Hours Semiannual Checks and Maintenance Every 1000 Hours Yearly Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines