Echo CS-370ES Service Manual
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Echo CS-370ES Service Manual

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Ord. No. 401-29

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Summary of Contents for Echo CS-370ES

  • Page 1 Ord. No. 401-29...
  • Page 2 INTRODUCTION This service manual contains information for service and maintenance of ECHO CHAIN SAW, model CS-370ES, CS-420ES. For systematic diagnosis, to avoid extra work, time loss and to meet Emission regulation, please refer to "Troubleshooting guide" that describes problems, testing, remedies and references.

  • Page 3: Table Of Contents

    CS-370ES TABLE OF CONTENTS CS-420ES Page Page 1 SERVICE INFORMATION ........2 5 CLUTCH SYSTEM ..........35 Specifications ..........2 Inspecting clutch parts ........35 Technical data ..........3 Replacing clutch parts ........36 Installing clutch assembly ......36 Torque limits ............ 4 Special repairing materials ......

  • Page 4: Service Information

    CS-370ES SERVICE INFORMATION CS-420ES 1 SERVICE INFORMATION 1-1 Specifications Model CS-370ES CS-420ES Dimensions Length* mm(in) 393 (15.5) Width mm(in) 245 (9.6) Height mm(in) 277 (10.9) Dry weight* kg(lb) 4.6 (10.1) 4.6 (10.1) Engine Type KIORITZ, air-cooled, two-stroke, single cylinder Rotation...

  • Page 5: Technical Data

    CS-370ES SERVICE INFORMATION CS-420ES 1-1 Specifications (continued) Cutting devices CS-420ES Guide bar Part No. 38RD58-325 43RD58-325 Called length Gauge 0.058 Saw chain Type CARLTON K2L OREGON 21BP Number of drive links Pitch 0.325 Gauge 0.058 1-2 Technical data Model CS-370ES...

  • Page 6: Torque Limits

    CS-370ES SERVICE INFORMATION CS-420ES 1-3 Torque limits Descriptions Size kgf•cm N•m in•lbf Starter Starter pawl 40 - 60 4 - 6 35 - 50 system Starter case M 5** 25 - 35 2.5 - 3.5 22 - 30 Ignition Magneto rotor (Flywheel)

  • Page 7: Service Limits

    CS-370ES SERVICE INFORMATION CS-420ES 1-5 Service Limits 5K275 5K277 5K278 5K279 5K280 5K016 5K042 5K276 5K173 5K174 5K190 5K191 Description mm (in) CS-370ES CS-420ES A Cylinder bore When plating is worn and aluminum can be seen B Piston outer diameter Min.

  • Page 8: Special Tools

    CS-370ES SERVICE INFORMATION CS-420ES 1-6 Special tools a = 3 mm a = 4 mm Part Number Description Reference 990511-30017 Tachometer PET-1000 Measuring engine speed 895612-79920 L-hex wrench (3 mm) Removing and installing hex. socket bolts (M4) 895610-79920 L-hex wrench (4 mm) Removing and installing hex.

  • Page 9: Starter System

    CS-370ES CS-420ES STARTER SYSTEM 2 STARTER SYSTEM (ES starter) (A) Starter case (B) Rewind spring (C) Rewind spring case assembly (D) Rope reel (E) Power Spring (e) Hook end of power spring (F) Pawl catcher Construction Working principle 1. Rewind spring case assembly (C) is installed 1.

  • Page 10: Disassembling Starter Assembly

    CS-370ES STARTER SYSTEM CS-420ES 2-1 Disassembling starter assembly 1. Remove four bolts securing recoil starter assembly. Remove recoil starter assembly from unit. 2. Pull out starter rope about 30 centimeters (12 in) and hold rope reel (A). Loop excess rope in rope reel notch (B) as shown.

  • Page 11: Replacing Starter Rope

    CS-370ES CS-420ES STARTER SYSTEM 2-2 Replacing starter rope 1. Pull out and untie knot (A). 2. Pull out knot (C) from rope reel (B). 3. When installing a new starter rope, singe both ends of the rope to prevent fraying.

  • Page 12: Assembling Starter

    CS-370ES STARTER SYSTEM CS-420ES 2-3 Assembling starter 1. If rewind spring (B) is unwound from rewind spring case (A), wind the spring inside case as shown. 2. Install rewind spring case assembly on starter case matching hole (C) with post (D). Hook (E) of rewind spring should contact with post of starter case.
  • Page 13 CS-370ES CS-420ES STARTER SYSTEM 2-3 Assembling starter (continued) 4. Check for proper engagement of rewind spring and rope reel by turning rope reel (F) clockwise and counterclockwise. 5. Install power spring assembling hook (G) of power spring into rope reel cutout (H).

  • Page 14: Replacing Starter Pawl

    CS-370ES STARTER SYSTEM CS-420ES 2-3 Assembling starter (continued) 7. Fasten screw (P) on starter post. 8. Pull out starter rope inside starter case. Rotate rope reel clockwise several turns with starter rope hooked at notch (Q) as shown. Hold rope reel to prevent it from rewinding and pull out starter grip to take the rope slack.
  • Page 15 CS-370ES CS-420ES STARTER SYSTEM 2-4 Replacing starter pawl (continued) 3. Install torsion spring, spacer, pawl, washer and bolt. To avoid pinching of torsion spring, install these parts without setting the hook (E) of torsion spring on starter pawl. The bolt is pre-coated with sealant on the thread.

  • Page 16: Ignition System

    CS-370ES CS-420ES IGNITION SYSTEM 3 IGNITION SYSTEM (A) Flywheel (B) Ignition coil (C) Spark plug (D) Spark plug cap coil (E) Spark plug cap (F) High tension lead (G) Primary lead (H) Ground lead (I) Spacer (J) Switch bracket (K) Throttle rod...

  • Page 17: Troubleshooting Guide

    CS-370ES CS-420ES IGNITION SYSTEM 3-1 Troubleshooting guide Start Remedy Inspect S.T. Adjust pole shoe air gaps. Pole (Inspect flywheel magnet shoe air at the same time. Go to gaps Clean / A if OK.) Spark plug Regap / S.T. Replace.

  • Page 18: Testing Spark

    CS-370ES CS-420ES IGNITION SYSTEM 3-2 Testing spark 1. Remove air cleaner cover and remove spark plug cap from spark plug. 2. Connect spark tester 990511-30023 (A) to high tension lead and connect tester lead (B) on spark plug. 3. Screw in adjuster (C) until the needle tips contact.

  • Page 19: Inspecting Ignition Switch

    CS-370ES CS-420ES IGNITION SYSTEM 3-4 Inspecting ignition switch 1. Remove cylinder cover. 2. Connect one probe of Ohm-meter or multi-meter to primary lead (A) and the other probe to cylinder fin. 3. When ignition switch is in “RUN” position, tester should indicate infinite resistance.

  • Page 20: Inspecting Ignition Coil Resistance

    CS-370ES CS-420ES IGNITION SYSTEM 3-6 Inspecting ignition coil resistance 1. Remove cylinder cover. 2. Connect one probe of Ohm-meter or multimeter (Power source DC 1.5V) to spark plug cap coil (A). 3. Connect the other probe to cylinder (B) to measure secondary coil resistance.

  • Page 21: Replacing Ignition Coil

    CS-370ES CS-420ES IGNITION SYSTEM 3-8 Replacing ignition coil 1. Disconnect spark plug cap from spark plug and remove starter assembly and cylinder cover. 2. Disconnect primary lead (A) and ground lead (B) from ignition coil. Loosen bolts (C) of ignition coil.

  • Page 22: Inspecting Flywheel And Key

    CS-370ES CS-420ES IGNITION SYSTEM 3-10 Inspecting flywheel and key 1. Inspect magnetic force of flywheel using flux meter, or bridging with a screwdriver. 2. If magnetic force is weak, replace flywheel as follows. 3. Install piston stopper 897537-30130 (A) into spark plug hole by hand, to stop crankshaft rotation.

  • Page 23: Fuel System

    CS-370ES CS-420ES FUEL SYSTEM 4 FUEL SYSTEM (A) Carburetor (B) Pulse line (C) Intake gasket (D) Intake insulator (E) Fuel inlet line (F) Purge bulb (G) Air cleaner bracket (H) Air filter (I) Carburetor elbow (J) Fuel tank vent (K) Fuel tank vent line...

  • Page 24: Inspecting Air Filter

    CS-370ES CS-420ES FUEL SYSTEM 4-1 Inspecting air filter 1. Close choke shutter. Remove cleaner lid, air cleaner bracket and air filter. DANGER Wear eye protection when working with com- pressed air. Eye damage can occur from flying particles. 2. Inspect the surface of air filter. If blocked with dirt or dust, remove the obstruction using brush.

  • Page 25: Replacing Purge Bulb

    CS-370ES CS-420ES FUEL SYSTEM 4-3 Replacing purge bulb NOTE: It is possible to replace purge bulb, without removing carburetor from the unit. 1. Remove switch bracket (A) from engine cover (Refer to “3-5 Replacing ignition switch”). 2. Remove fuel return line (B) and fuel inlet line (C) from purge bulb.

  • Page 26: Inspecting Fuel Tank And Line

    CS-370ES CS-420ES FUEL SYSTEM 4-4 Inspecting fuel tank and line 1. Clean fuel tank inside as required. 2. Remove cylinder cover, disconnect fuel line (A) from carburetor. 3. Connect pressure tester 897803-30133 (B) to fuel line. NOTE: To connect pressure tester to fuel line easily, it is recommended to use pipe joint V186-000020 (C).

  • Page 27: Inspecting And Replacing Tank Vent

    CS-370ES CS-420ES FUEL SYSTEM 4-5 Inspecting and replacing tank vent NOTE: Tank vent prevents a vacuum from forming in fuel tank when fuel in fuel tank is being consumed. When pressure in fuel tank becomes too high, tank vent releases the pressure.

  • Page 28: Replacing Fuel Line, Fuel Tank Vent Assembly And Grommet

    CS-370ES CS-420ES FUEL SYSTEM 4-6 Replacing fuel line, fuel tank vent assembly and grommet 1. Remove engine cover and engine block from rear handle (Refer to “9-2 Inspecting cushions”). 2. Inspect fuel line (A), fuel tank vent assembly (B), fuel return line (C) and fuel tank. Replace them if defective.

  • Page 29: Adjusting Carburetor

    CS-370ES CS-420ES FUEL SYSTEM 4-7 Adjusting carburetor 4-7-1 General adjusting rules A. Before starting the unit for adjustment, check the following items. 1. The correct spark plug must be clean and properly gapped. 2. The air filter element must be clean and properly installed.
  • Page 30 5. Turn L and H mixture needles clockwise until lightly seated, and then turn out both mixture needles following turns. CS-370ES: L mix. needle1 1/4, H mix. needle 2 3/8 CS-420ES: L mix. needle1 3/8, H mix. needle 2 3/4 NOTE: If needles are overtighten during seating, damage to carburetor may occur.

  • Page 31: Adjusting Carburetor

    3. Adjust L mixture needle to reach maximum engine rpm just before lean drop off. 4. Set idle engine speed to 3,800 rpm (CS-370ES, CS-420ES) by turning idle adjust screw. Engine rpm should be stable at 3,800 +/- 10 rpm after idle adjust screw adjustment.

  • Page 32: Positioning Plug Of Air Cleaner Cover

    When it is cold weather lower than 10 ºC and acceleration is poor, change place of the plug on air cleaner cover from closed position (normal) to opened position. 1. Air cleaner cover on CS-370ES and CS-420ES has plug. 2. The picture shows normal position of the plug (A).

  • Page 33: Testing Carburetor

    CS-370ES CS-420ES FUEL SYSTEM 4-9 Testing carburetor NOTE: To perform this test, fuel should be inside carburetor. If not, a little leakage may occur from dry diaphragm and/or inlet needle seat. 1. Remove cylinder cover and disconnect fuel line from carburetor. Connect pressure tester 897803- 30133 (A) to carburetor fuel inlet.

  • Page 34: Inspecting Metering Lever Height

    CS-370ES CS-420ES FUEL SYSTEM 4-11 Inspecting metering lever height 1. Remove carburetor. 2. Remove metering diaphragm cover, metering diaphragm and gasket. 3. Inspect metering lever height by Metering lever gauge 897563-19830 (A). Metering lever height: 1.65 mm (0.068 in) lower than diaphragm seat (B) 4.

  • Page 35: Replacing Welch Plug

    CS-370ES CS-420ES FUEL SYSTEM 4-13 Replacing Welch plug If engine does not run smoothly even after readjusting carburetor and inspecting carburetor parts, inspect low speed ports on carburetor as follows: 1. Remove metering lever and related parts to protect them from damage.

  • Page 36: Installing Carburetor

    CS-370ES CS-420ES FUEL SYSTEM 4-15 Installing carburetor 1. Connect pulse line (A) and fuel line (B) to fittings on carburetor. 2. Place carburetor elbow on carburetor and pass two screws through the holes (C). 3. Install carburetor and carburetor elbow (D) with three screws (E), passing fuel inlet line (F) under fuel line (B) and fuel return line (G) as shown.

  • Page 37: Clutch System

    CS-370ES CS-420ES CLUTCH SYSTEM 5 CLUTCH SYSTEM (A) Clutch assembly (B) Clutch plate (C) Clutch drum (D) Needle bearing (E) Collar (F) Worm gear (G) Circular washer (H) Clutch hub (I) Clutch shoe (J) Spring 5-1 Inspecting clutch parts 1. Remove sprocket guard (A) and cleaner lid (B).

  • Page 38: Replacing Clutch Parts

    CS-370ES CS-420ES CLUTCH SYSTEM 5-2 Replacing clutch parts 1. Install tension spring (C) to clutch shoes (B). 2. Set one arm of clutch hub (A) to one clutch shoe. 3. Install other two clutch shoes on two arms as shown.

  • Page 39: Saw Chain Lubrication System

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6 SAW CHAIN LUBRICATION SYSTEM (A) Oil outlet line (B) Auto-oiler assembly (C) Oil tank (D) Oil tank vent (E) Oil strainer (F) Grommet (G) Oil line (H) Oil cap (I) O-ling (J) Connector 6-1 Inspecting oil cap and strainer 1.

  • Page 40: Inspecting Oil Line

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6-2 Inspecting oil line 1. Remove sprocket guard. 2. Remove inner sprocket guard plate. 3. Disconnect lower oil line (A) from auto-oiler assembly and connect pressure tester 897803- 30133 (B) to oil line (A) with pipe joint V186-000020 (C).

  • Page 41: Replacing Oil Line And Grommet

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6-4 Replacing oil line and grommet 1. Remove clutch assembly referring to “5-1 Inspecting clutch parts”. 2. Remove clutch plate, clutch drum, needle bearing and washer. 3. Pull out oil strainer from oil tank (Refer to “6-1 Inspecting oil cap and strainer”) and remove oil...

  • Page 42: Disassembling Auto-Oiler Assembly

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6-5 Disassembling auto-oiler assembly 1. Remove auto-oiler assembly from the unit. 2. Tap 5-mm (M5 - Pitch 0.8mm) thread in the hole of plug (A). 3. Screw the bolt (B) of puller 897501-03938 into the hole of plug (A), and connect PTO shaft puller 897603-23030 (C) as shown.

  • Page 43: Replacing V-Ring

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6-6 Replacing V-ring 1. Inspect V-ring on plunger for hardness or damage. Replace as follows if required. 2. Secure V-ring (A) and insert thin steel wire such as paper clip through the opening as shown.

  • Page 44: Assembling Auto-Oiler Parts

    CS-370ES CS-420ES SAW CHAIN LUBRICATION SYSTEM 6-7 Assembling auto-oiler parts 1. Assemble spring (A) to plunger (B) as shown. 2. Coat plunger gear (b) and spring (A) with grease and insert into cylinder (C) of auto-oiler body. NOTE: Do not apply grease on V-ring (D) and plunger shaft end (E), because these are a part of chain oil passage.

  • Page 45: Engine

    CS-370ES CS-420ES ENGINE 7 ENGINE (A) Cylinder (Upper crankcase) (B) Crankcase (Lower crankcase) (C) Crankshaft assembly (D) Ball bearing (E) Oil seal (F) Engine cover (G) Piston ring (H) Snap ring (I) Piston (J) Piston pin (K) Needle bearing (L) Piston pin spacer...

  • Page 46: Testing Cylinder Compression

    CS-370ES CS-420ES ENGINE 7-1 Testing cylinder compression NOTE: Test cylinder compression when engine is cold. 1. Move ignition switch to STOP position. Then remove spark plug. 2. Install compression gauge 91037 (A) in spark plug hole and tighten by hand. Pull starter several times to stabilize reading on compression gauge.

  • Page 47: Inspecting Muffler And Exhaust Port

    CS-370ES CS-420ES ENGINE 7-3 Inspecting muffler and exhaust port 1. Remove cylinder cover and muffler. 2. Inspect cylinder exhaust port and clean the port using wooden or plastic stick if carbon is found. NOTE: When cleaning exhaust port, always position piston at Top Dead Center (TDC) to prevent carbon from entering cylinder.

  • Page 48: Removing Engine Block

    CS-370ES CS-420ES ENGINE 7-4 Testing crankcase and cylinder sealing (continued) 4. Remove muffler. Install pressure rubber plug 897831-16131 (C) on exhaust port, then reinstall muffler to seal port. 5. Connect pressure tester 897803-30133 (D) to pulse line using pipe joint V186-000020 (E).

  • Page 49: Inspecting Cylinder

    CS-370ES CS-420ES ENGINE 7-6 Inspecting cylinder 1. Remove muffler (A) and muffler gasket from cylinder. 2. Disconnect intake insulator (B) from intake bellows (C) and pulse line (D) taking care not to damage them. 3. Remove intake bellows (C) and pulse line (D) from cylinder.

  • Page 50: Inspecting Crankcase And Crankshaft

    CS-370ES CS-420ES ENGINE 7-8 Inspecting crankcase and crankshaft 1. Clean crankcase. Replace as a set of cylinder and crankcase if damaged. 2. Completely remove sealant residue on mating surfaces and bearing bore of crankcase using wooden or plastic scraper, or chemical gasket remover.

  • Page 51: Installing Piston And Piston Ring

    CS-370ES CS-420ES ENGINE 7-10 Installing piston and piston ring 1. Lubricate needle bearing with 2-stroke engine oil. 2. Set needle bearing and piston pin spacers (A) on small end of connecting rod (B) as shown. NOTE: Place piston pin spacers on connecting rod with dents (a) inside as shown.

  • Page 52: Installing Piston Into Cylinder

    CS-370ES CS-420ES ENGINE 7-11 Installing piston into cylinder 1. Apply 2-stroke oil on cylinder walls, oil seal grooves, piston ring, ball bearing, and both sides of con-rod. 2. Position end gap of piston ring with locating pin (A). 3. Install piston in cylinder with arrow (B) pointing to muffler side.

  • Page 53: Installing Engine Block

    CS-370ES CS-420ES ENGINE 7-12 Installing engine block 1. Assemble muffler gasket and muffler (A) to cylinder. 2. Assemble gasket (B), intake bellows (C) and pulse line (D) to cylinder. 3. Pass pulse line (D) through hole (E) of intake insulator. Install the flange (F) of intake bellows in hole (G) of intake insulator.

  • Page 54: Chain Brake System

    CS-370ES CS-420ES CHAIN BRAKE SYSTEM 8 CHAIN BRAKE SYSTEM (A) Brake lever (B) Screw (C) Collar (D) Collar (E) Bolt (F) Torsion spring (G) Brake cover (H) Brake connector (I) Spacer (J ) Roller (K) Brake band (L) Spacer (M) Compression spring...

  • Page 55: Assembling Brake Parts

    CS-370ES CS-420ES CHAIN BRAKE SYSTEM 8-2 Assembling brake parts 1. Assemble brake band (A) together with spacer (B), brake connector (C) and collar (D), placing the notch (b) of spacer as shown. Install roller (E) through brake band hole (F).

  • Page 56: Rear Handle And Control System

    CS-370ES CS-420ES REAR HANDLE AND CONTROL SYSTEM 9 REAR HANDLE AND CONTROL SYSTEM (A) Rear handle (B) Torsion spring (C) Spring pin (D) Throttle trigger (E) Throttle lockout (F) Rear handle cover (G) Throttle latch (CS-370) (H) Cushion (I) Collar...

  • Page 57: Replacing Throttle Latch

    CS-370ES CS-420ES REAR HANDLE AND CONTROL SYSTEM 9-1 Replacing throttle latch (CS-370) 1. Remove throttle latch (A) from rear handle with 13 mm wrench. WARNING Always wear eye protection when using com- pressed air for cleaning. Otherwise, eye damage can occur from flying particles 2.
  • Page 58 CS-370ES CS-420ES REAR HANDLE AND CONTROL SYSTEM 9-2 Replacing cushions (continued) 7. To remove cushion (B) and (C), push out cushion as shown. 8. Apply lithium-based grease on outer surfaces (b), then push in cushion as shown. 9. Remove cushion (D) with needlenose pliers, cutting off glued part (d) with cutter.

  • Page 59: Replacing Throttle Trigger

    CS-370ES CS-420ES REAR HANDLE AND CONTROL SYSTEM 9-2 Replacing cushions (continued) 12. Put rear handle on the unit. 13. Tighten cushion bolts. Apply approximately 0.5 g (0.001 lb) lithium-based grease (E) inside cushion. 14. Install cushion caps to cushions using needlenose pliers.
  • Page 60 CS-370ES CS-420ES REAR HANDLE AND CONTROL SYSTEM 9-3 Replacing throttle trigger (continued) 6. Install throttle trigger (A) with torsion spring (B) and insert spring pin (C) as follows. 1) Insert spring pin (C) in the hole of rear handle so the tip of spring pin does not protrude inside handle.

  • Page 61: Guide Bar Mounting System

    CS-370ES CS-420ES GUIDE BAR MOUNTING SYSTEM 10 GUIDE BAR MOUNTING SYSTEM (A) Inner sprocket guard plate (B) Outer sprocket guard plate (C) Tensioner screw (D) Chain tensioner (E) Bevel gear (F) Bevel gear (G) Collar (H) Guide bar stud...

  • Page 62: Replacing Chain Tensioner

    CS-370ES CS-420ES GUIDE BAR MOUNTING SYSTEM 10-1 Replacing chain tensioner 1. Remove sprocket guard from the unit. 2. Remove outer sprocket guard plate (A) from sprocket guard. Remove tensioner screw (B), chain tensioner (C) and bevel gears (D) (E) and collar (F).

  • Page 63: Installing Guide Bar Stud

    CS-370ES CS-420ES GUIDE BAR MOUNTING SYSTEM 10-3 Installing guide bar stud 1. Apply adhesive (Loctite #675, or equivalent) to un-threaded part (A) of new guide bar stud. 2. Install new stud to the stud-hole of oil tank using a pair of tweezers (B).

  • Page 64: Maintenance Guide

    CS-370ES MAINTENANCE GUIDE CS-420ES 11 MAINTENANCE GUIDE 11-1 Service Intervals Intervals 3 months 6 months Inspecting point Service Reference Daily 100 hours 300 hours Screws and bolts * Retighten / Replace Air filter Clean Inspect / Replace Carburetor Inspect / Repair...

  • Page 65: Troubleshooting Guide

    CS-370ES MAINTENANCE GUIDE CS-420ES 11-2 Troubleshooting Guide TROUBLE Engine does not crank. Engine does not start. Fuel leaks. Idling is not stable. Acceleration is poor. Engine stalls at high speed. Engine lacks power. Engine overheats. Engine misfires. Engine / others are extremely noisy.
  • Page 66 CS-370ES MAINTENANCE GUIDE CS-420ES 11-2 Troubleshooting Guide (continued) INSPECTING REFERENCES Inspecting first. Fuel system / Carburetor 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 Air filter Fuel cap / strainer Carburetor adjustment Fuel tank / line/ vent...

  • Page 67: Disassembly Chart

    CS-370ES MAINTENANCE GUIDE CS-420ES 11-3 Disassembly Chart Cleaner Sprocket Starter Cylinder guard assembly cover (8-1, 10-1) (2-1) Clutch Exhaust Switch Spark plug Air filter assembly blacket muffler (3-3) (4-1) (3-5) (5-1 to 5-3) (7-3) Clutch drum, Worm gear Carburetor (5-1, 5-3)

  • Page 68: Index

    INDEX CS-370ES INDEX CS-420ES Adhesive 4, 50, 56, 61 Fuel tank 21, 24 to 26, 62, 64 Pump diaphragm 31, 33, 64 Air filter 21, 22, 27, 34, 45, 46, 55, 62, Fuel tank vent 21, 24 to 27, 64...
  • Page 69 Printed in Japan 0712 TOKYO JAPAN...

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