Page 3 - CONTENTS; Section
CONTENTS Section Title Page 1. SPECIFICATIONS ...................................................................................................... 1 2. PERFORMANCE ...................................................................................................... 2 3. FEATURES ....................
Page 4 - Model
- 1 - 1. SPECIFICATIONS ＊ Specifications are subject to change without notice. Model EX13D EX17D EX21D EX27D Type Air-Cooled, 4-Cycle, Slant Single-Cylinder, Horizontal P.T.O. Shaft, OHC Gasoline Engine Bore & Stroke mm(in.) 58 x 48 (2.28 x 1.89) 67 x 48 (2.64 x 1.89) 67 x 60 (2.64 x 2.36) 75 x ...
Page 5 - moving parts are properly broken in.; -2 CONTINUOUS RATED OUTPUT; the view point of engin’s life and fuel consumption.
- 2 - 2. PERFORMANCE 2-1 MAXIMUM OUTPUT The Maximum output is the output of an engine with its throttle valve fully opened and considering that all the moving parts are properly broken in. A new engine may not produce full maximum output while its moving parts are still not broken-in. NOTE : Power c...
Page 6 - kW; REVOLUTION; MAXIMUM TORQUE; ORQ; MAXIMUM HORSEPOWER; OUTPUT; -4 PERFORMANCE CURVES
- 3 - 2000 2400 2800 3200 3600 4000 0 0 0.5 1.0 1.0 1.5 2.0 2.0 2.5 3.0 3.0 3.5 4.0 7.0 8.0 9.0 4.0 5.0 kW [HP] r.p.m. REVOLUTION MAXIMUM TORQUE T ORQ UE MAXIMUM HORSEPOWER OUTPUT CONTINUOUSRATED HP RECOMMENDEDHORSEPOWERRANGE 0.7 0.8 0.9 2-4 PERFORMANCE CURVES EX13D
Page 10 - II
- 7 - 3. FEATURES 3-1 EXTREMELY SILENT - SOFT TONE QUALITY EX engines are 2dBA quieter and softer in tone than other engines in the same class. This quiet and soft tone is achieved by: - A reduction in mechanical noise realized by employing sophisticated OHC system. - Employment of an optimized capa...
Page 11 - GENERAL DESCRIPTION OF ENGINE COMPONENTS
- 8 - 4-1 CYLINDER AND CRANKCASE The cylinder and crankcase are aluminum die-casting as a single piece. A special cast iron cylinder liner is molded into the aluminum die-casting. The crankcase has a mounting surface on the output shaft side to which the main bearing cover is attached. The cylinder ...
Page 12 - -7 VALVE ARRANGEMENT
- 9 - 4-5 PISTON RINGS The piston rings are made of special cast iron. The profile of the top ring is a barrel face or tapered face, andthat of the second ring is a tapered face. There are 2 types of oil ring depending on the engine specification.As those are interchangeable, the cutter ring with co...
Page 13 - -13 IGNITION SYSTEM; LUBRICATION SYSTEM; GOVERNOR GEAR; OIL SPLASHER; FLYWHEEL; TIMING CHAIN
- 10 - 4-13 IGNITION SYSTEM The ignition system is a transistor controlled magneto system with the ignition timing set at 23 degrees (EX13/ 17/21)[27 degrees (EX27)] before the top dead center. The magneto consists of a flywheel and ignition coil. The flywheel (which also works as a fan) is directly...
Page 14 - -17 DECOMPRESSION SYSTEM; STD Type
- 11 - 4-14 CARBURETOR T h e e n g i n e i s e q u i p p e d w i t h a h o r i zo n t a l d ra f t carburetor. The carburetor setting is calibrated after careful testing for optimum all-round performance (including star ting, acceleration, fuel consumption, output power characteristics). Special att...
Page 16 - Cross sectional view – along the shaft
- 13 - Fig. 4-17 FUEL TANK OIL GAUGE OIL DRAIN PLUG TIMING CHAIN FILLER PLUG PISTON PIN PISTON RING CONNECTING ROD STARTINGMOTOR(OPTION) MAGNETICSWITCH MUFFLER PISTON CHAIN GUIDE GOVERNOR LEVER MUFFLER COVER GOVERNORGEAR FUEL STRAINER TENSIONER OIL SENSOR (OPTION) CRANKSHAFT CRANKCASE ROCKER ARM INT...
Page 17 - DISASSEMBLY AND REASSEMBLY; -1 PREPARATIONS AND PRECAUTIONS; Tool name; Commercially available product; Flywheel puller; FLYWHEEL PULLER
- 14 - Fig. 5-1 5. DISASSEMBLY AND REASSEMBLY 5-1 PREPARATIONS AND PRECAUTIONS (1) When disassembling the engine, memorize the location of each part so that you can reassemble the engine correctly. If necessary, attach identification tags with the required assembly information to the parts. (2) Stor...
Page 18 - Drain the engine oill; OIL GAUGE; -3 DISASSEMBLY PROCEDURE
- 15 - Step Parts to remove Remarks and procedures Fasteners 1 Drain the engine oill (1) Remove a drain plug (M14×12mm) located on both sides of the case.Take care not to lose the gaskets. (2) To discharge oil quickly, remove the oil guage. 14 mm spanner Fig. 5-2 OIL GAUGE GASKET GASKET DRAIN PLUG S...
Page 19 - Air cleaner cover; DUAL ELEMENT TYPE; URETHAN FOAM
- 16 - Fig. 5-3 Step Parts to remove Remarks and procedures Fasteners 2 Air cleaner cover Remove the air cleaner cover. 3 Air cleaner Remove the element, and remove the air cleaner while pulling the breather pipe awayfrom the rocker cover. 10 mm box spanner M6 nut: 2 pcs.M6 × 20 : 1 pc. M6 x 20FLANG...
Page 20 - Step
- 17 - Fig. 5-4 STEP 4 STEP 5 STEP 6 STEP 6 M6 x 8 BOLT : 4 pcs. M6 x 12 BOLT : 4 pcs. STOP SWITCH BAFFLE 2 (HEAD) BAFFLE 3 (EX21 ONLY) M4 TAPPING SCREW : 2 pcs. RECOIL STARTER BLOWER HOUSING M6 x 12 BOLT : 1 pc. M5 TAPPING BOLT : 2 pcs. Step Parts to remove Remarks and procedures Fasteners 4 Stop s...
Page 21 - FUEL PIPE
- 18 - A A STEP 7 STEP 8 FUEL TANK M6 x 25 BOLT : 1 pc.(EX13, 17, 21)M8 x 25 BOLT : 2 pcs.(EX27) M6 NUT : 2 pcs.(EX13,17,21)M8 NUT : 2 pcs.(EX27) M8 NUT : 2 pcs. GASKET (It has two faces) M6 x 10TAPPING BOLT : 2 pcs. M6 x 8FLANGE BOLT : 1 pc. M8 x 12 BOLT : 1 pc. MUFFLER Seal the exhaust port with a...
Page 25 - Spark plug
- 22 - Fig.5-12 Step Parts to remove Remarks and procedures Fasteners 16 Baffle 1 (case) Remove the baffle 1 (case) M6 × 12mm : 1 pc.(Models EX13, 17 and 21)M8 × 12mm : 1 pc.(Model EX27) 17 Charge coil (option) Remove the charge coil.(For EX27, remove the wire clamp together) box spannerM6 × 20mm : ...
Page 26 - Rocker cover
- 23 - Fig. 5-14a Step Parts to remove Remarks and procedures Fasteners 19 Rocker cover (1) Remove the rocker cover from the cylinder head. (2) Remove the gasket (rocker cover). 10 mm box spanner M6 × 12mm : 4 pcs. 20 Rocker arm Remove the pin (rocker arm) and the rocker arm from the cylinder head a...
Page 27 - Main bearing cover; MAIN BEARING COVER
- 24 - Fig. 5-16 Step Parts to remove Remarks and procedures Fasteners 21 Main bearing cover (1) Remove the flange bolts of main bearing cover from the crankcase.Remove the main bearing cover whiletapping gently around the cover usinga plastic hammer or similar tool.(See Fig. 5-16)Be careful not to ...
Page 29 - PIPE KNOCK; Push
- 26 - Fig.5-20 Fig.5-21 Step Parts to remove Remarks and procedures Fasteners 23 Cylinder head,Chain guide (1) Remove the cylinder head from the crankcase. (2) Remove the cylinder head gasket from the cylinder head. Take care not to lose thepipe knocks. (3) Remove the chain guide from the top side ...
Page 30 - (1) Scrape off any carbon from the cylinder
- 27 - Step Parts to remove Remarks and procedures Fasteners 25 Connecting rod andpiston (1) Scrape off any carbon from the cylinder and the piston head, then remove theconnecting rod bolt. (2) Remove the connecting rod cap.(3) Rotate the crankshaft until the piston comes to its top position. Push t...
Page 31 - Crankshaft
- 28 - Step Parts to remove Remarks and procedures Fasteners 27 Crankshaft (1) Remove the woodruff key (for the flywheel magneto). (2) Remove the crankshaft from the crankcase by tapping its magneto side end with a plastichammer, taking care not to damage the oilseal. (See Fig. 5-24) Plastic hammer ...
Page 32 - -4 REASSEMBLY PROCEDURE; CRANKSHAFT; Tightening torque
- 29 - OIL SENSOR SHIELD PLATE(OS) M6 x 12 BOLT : 1pc. M6 x 16BOLT : 2pcs. CLAMP (1) OIL SENSOR (a) Mount the oil sensor and fix the wire with the clamp. (b) Mount the shield plate only for charge coil type. (c) Mount the control unit. Fix the ear th wire of the control unit at the same time. (See F...
Page 33 - OPEN ENDS OF PISTON RING
- 30 - (3) PISTON AND PISTON RINGS Install each piston ring in the correct groove of the piston by widening it enough to slide it over the piston. NOTE: Be careful not to twist the rings too much, as they may be damaged. Install the oil ring first, followed by the second ring and then the top ring. ...
Page 36 - Mount the chain guide to the crankcase.; Tighten the cylinder head bolts in diagonal order.; Cylinder head bolts; step; When replace to new cylinder
- 33 - (7) CHAIN GUIDE Mount the chain guide to the crankcase. Fig. 5-39b Model EX21mounting position Models EX13, 17 and 27 mounting positions CHAIN GUIDE Fig. 5-39a (8) CYLINDER HEAD Inspect and repair any scratches on mounting surface and replace head gasket to new one before installing. Tighten ...
Page 37 - Number of oval steel link
- 34 - TIMING MARK The position of top dead center MARK PLATE MARK PLATE MARK PLATE MARK PLATE MARK PLATE MARK PLATE TIMING MARK ROLL PIN ROLL PIN ROLL PIN TIMING MARK TIMING MARK TIMING MARK TIMING MARK CHAIN GUIDE FITTING POSITION CHAIN GUIDE FITTING POSITION CHAIN GUIDE FITTING POSITION The mark ...
Page 38 - (10) MOUNTING THE CAMSHAFT ON THE CYLINDER HEAD; CAMSHAFT
- 35 - TENSIONER SPRING(TENSIONER) CHAIN PIN(TENSIONER) PIN(CAMSHAFT) CAMSHAFT CHAIN M6 x 12 BOLT : 1 pc.Bolt used to prevent the pin (camshaft) from coming out Fig. 5-42b (10) MOUNTING THE CAMSHAFT ON THE CYLINDER HEAD Mount the camshaft on the cylinder head by inserting the pin (camshaft) through ...
Page 40 - Valve clearance (when the engine is cold); Punch
- 37 - (15) VALVE CLEARANCE ADJUSTMENT Temporarily fit the flywheel. Rotate the crankshaft up to the compression top dead center and inser t the thickness gauge between the valve and the adjusting screw of rocker arm to measure the clearance. [Adjustment method] Loosen the nut on the adjustment scre...
Page 41 - SPARK PLUG; or CHAMPION RL86C
- 38 - (16) ROCKER COVER Replace the gasket with a new one, and mountthe rocker cover. M6 ✕ 12mm flange bolt : 4 pcs. SPARK PLUG ROCKER COVER M6 x 12 BOLT : 4 pcs. GASKET(ROCKER COVER) (18) BAFFLE 1 (CASE) Align the top and bottom of the baffle 1 (case)with the crankcase and mount it with the bolts....
Page 42 - Air gap
- 39 - Fig. 5-51 Air gap Fig. 5-52 Fig. 5-53 FLYWHEEL STARTING PULLEY IGNITION COIL THICKNESSGAUGE To STOP SWITCH (19) FLYWHEEL AND STARTING PULLEY NOTE: When mounting the flywheel, be sure to wipe off any oil on the tapered portion of the crankshaft and flywheel. Mount the flywheel on the crankshaf...
Page 43 - Detail; GASKET; NOTE : The baffle 3 is used for Model EX21 only.
- 40 - Fig. 5-54 M6 x 12 BOLT : 2 pcs. M6 x 12 BOLT : 1 pce. SPEED CONTROL LEVERand BRACKET CARBURATOR BAFFLE 2 (HEAD) BAFFLE 3(EX21 ONLY) M5 TAPPING BOLT : 2 pcs. INSULATOR A Detail A GASKET GASKET (21) SPEED CONTROL LEVER, BRACKET AND BAFFLE Mount the speed control lever and bracket, baffle 2 (hea...
Page 44 - shaft. Do not adjust the bolt on the governor lever yet.; Discrimination according to the dimensions:; GOVERNOR SPRING
- 41 - (23) GOVERNOR LEVER (a) Pass the governor rod through the rod spring, then connect to the throttle lever of the carburetor. (b) Attach the governor rod and rod spring to the governor lever, then mount the governor lever on the governor shaft. Do not adjust the bolt on the governor lever yet. ...
Page 45 - AIR CLEANER BASE
- 42 - ■ Governor system adjustment method The governor unit is a centrifugal flyweight type and is installed on the governor gear. Since it automatically adjusts the throttle valve of the carburetor by means of a link mechanism, it is possible to maintain a constant engine speed, even with load var...
Page 46 - Tightening torque for fuel strainer; NOTE : Make sure the fuel pipe is located on the boss,; MUFFLER
- 43 - (25) MUFFLER (1) Mount the muffler and the gasket on the cylinder head. (2) Mount the muffler cover on the muffler. M6 ✕ 8 mm flange bolt : 1 pc. M6 ✕ 10 mm tapping bolt : 2 pcs. NOTE : Be sure to remove any tape or cloth used to cover the exhaust port when the enginewas disassembled. M8 ✕ 12...
Page 48 - Type; Mount the air cleaner element and cleaner cover.; STOP SWITCH
- 45 - Dual element STD Type Fig. 5-62 (29) AIR CLEANER Mount the air cleaner element and cleaner cover. (28) STOP SWITCH (1) Mount the stop switch on the blower housing. (2) Refer to the wiring diagram (See page 51 and 52) for wiring details. Fig. 5-61 STOP SWITCH
Page 49 - No Load; other faults visible on the outside of the engine.; Engine oil volume
- 46 - (32) BREAK-IN OPERATION A new engine or an engine that has been completely overhauled by being fitted with a new piston, rings, valves and connecting rod should be thoroughly RUN-IN before being put back into service. Good bearing surfaces and running clearances between the various parts can ...
Page 50 - Single grade
- 47 - 6. ENGINE OIL Using engine oil of the correct grade and viscosity greatly lengthens engine life and improves performance. Too much or too little oil can also result in serious problems, including engine seizure. 6-1 CLASSIFICATION BY OIL GRADE API (American Petroleum Institute) 6-2 CLASSIFICA...
Page 51 - specification. A charge coil system is available as an option.; -2 INSPECTING THE MAGNETO; according to the following procedure:
- 48 - 7. MAGNETO 7-1 MAGNETO The Robin Engine uses a T.I.C. type breakerless magneto ignition system. (1) T.I.C. (TRANSISTOR IGNITER CIRCUIT) has the ignition coil outside the flywheel, which is the standard specification. A charge coil system is available as an option. (The flywheel is a specializ...
Page 52 - BASIC THEORY
- 49 - 7-3 IGNITION SYSTEM (EX13 ,17, 21) 7-3-1 TYPE OF IGNITION SYSTEM EX13, 17 and EX21 have the T.I.C. (Transister, Igniter, Circuit) pointless ignition system.As optional parts, these ignition system may be implemented with lamp coil, charge coil and excitor coil. LowSpeed Ignition Timing Contro...
Page 53 - LINEAR ADVANCING
- 50 - 7-4-3 BASIC THEORY (a) Revolution of the flywheel generates electricity on the primary side of the ignition coil ( ① ), and the base current I 1 flows to the power transistor ( ② ). Current I 1 turns the power transistor “ON” and the electric current I 2 flows. This is the same situation when...
Page 54 - Flywheel
- 51 - Stop swit ch Flywheel Ignition coil (with built-in transistor) Black Spark plug 8. WIRING DIAGRAM 8-1 MODEL WITHOUT ELECTRIC STARTER (Models EX13, 17, 21 and 27) 8-2 MODEL WITH ELECTRIC STARTER (Models EX17 and 21) Fig. 8-1 Fig. 8-2 +M -M ST B LA106 LA406 LA306 Black Red Charge coil Diode rec...
Page 55 - -4 MODEL WITH OIL SENSOR; Oil sensor as option; Blue
- 52 - 8-3 MODEL WITH ELECTRIC STARTER (Model EX27) Fig. 8-3 +M -M ST B LA108 LA408 Black Red Charge coil Diode rectifier Ignition coil Spark plug Key switch Battery (12V24AH) Electric starter Magneto Key switch 066-00003-30 -M +M B S OFFONSTART 8-4 MODEL WITH OIL SENSOR To LED Lamp Yellow Yellow / ...
Page 56 - -2 OPERATING PRINCIPLES; The figure below shows the state when the starter is ON.
- 53 - 9. ELECTRIC STARTER 9-1 SPECIFICATIONS Models EX17, 21 Model EX27 Voltage (V) 12 Power (kW) 0.6 0.6 Weight (kg) 1.6 3.4 9-2 OPERATING PRINCIPLES The battery is connected to the 6 or 8 mm diameter terminal of the magnetic switch. The figure below shows the state when the starter is ON. There a...
Page 58 - 0-2 CONSTRUCTION AND OPERATION; OIL SENSOR; FLOAT; MAGNETIC FORCE
- 55 - 10. OIL SENSOR 10-1 SPECIFICATIONS 10-2 CONSTRUCTION AND OPERATION The oil sensor is composed of the float, permanent magnet incorporated into the float and the oil sensor. In accordance with the oil level, the float moves up and down. When the oil level is upper level, the float moves up. Fi...
Page 59 - AUTOMATIC DECOMPRESSION SYSTEM; 1-1 FUNCTIONS AND CONSTRUCTION
- 56 - A A ROCKER ARM (EXHAUST) ROCKER ARM (EXHAUST) ROCKER ARM (INTAKE) CAM CRESCENT CAM RELEASE LEVER RELEASE LEVER ROCKER ARM (EXHAUST) ROCKER ARM (INTAKE) CAM CRESCENT CAM CAMSHAFT ROCKER ARM (EXHAUST) CAMSHAFT RELEASE LEVER RELEASE LEVER DETAIL A DETAIL A Fig. 11-2 11. AUTOMATIC DECOMPRESSION S...
Page 60 - 2-2 FUNCTIONS AND CONSTRUCTION; combustion chamber of the engine.; Main Jet
- 57 - 12. CARBURETOR 12-1 SPECIFICATIONS 12-2 FUNCTIONS AND CONSTRUCTION 12-2-1 FLOAT SYSTEM The float chamber is located below the carburetor body. Through the operation of the float and the needle valve, the float chamber maintains a constant fuel level while the engine is working. The fuel flows...
Page 61 - FUEL SYSTEM OUTLINE
- 58 - PILOT OUTLET BYPASS PILOT AIR JET CHOKE VALVE AIR INTAKE PORT MAIN AIR JET MAIN NOZZLE FLOAT CHAMBER PILOT JET FLOAT MAIN JET FUEL NEEDLE VALVE FLOAT Fig. 12-2 Fig. 12-1 FUEL SYSTEM OUTLINE
Page 62 - 2-3 DISASSEMBLY AND REASSEMBLY; air and fuel can flow freely through them.
- 59 - Fig. 12-3 MODEL EX13, 17, 21 MODEL EX27 1 22 23 3 5 11 9 8 4 10 12 13 2 14 24 28 18 16 17 25 26 21 6 7 19 20 27 13 14 21 18 20 25 26 3 5 9 8 4 22 23 1 11 12 24 10 6 7 12-3 DISASSEMBLY AND REASSEMBLY Mechanical failures aside, most carburetor malfunctions occur when the fuel/air ratio of the m...
Page 65 - Put on the protective glasses prior to start reassembly.; SET SCREW
- 62 - GREASE SHAFT HOOK Position where the inner end of the spring touches to the rib of the bearing. 13-1-2 REASSEMBLY PROCEDURE (1) Put the reel back into the case -1 Apply grease to the surface of the case. (Fig.13-3) -2 Adjust the position of the inner end of the spring in the reel. (Fig. 13-4)...
Page 66 - it or release your grip on it suddenly.; Ratchet guide sub-assembly; -1 G r i p t h e c a s e a n d t u r n t h e r e e l 6 t i m e s
- 63 - (2) Mount the components -1 Mount the ratchet into the reel. (Fig. 13-5) -2 Mount the ratchet guide assembly, taking care not to move the ratchet. (Fig.13-6) (3) Tighten the set screw -1 Hold the ratchet guide gently by your hand to prevent it from rotating, then tighten the set screw. Fig. 1...
Page 68 - 3-1-3 CHECKING THE RECOIL STARTER AFTER REASSEMBLY; SPRING
- 65 - 13-1-3 CHECKING THE RECOIL STARTER AFTER REASSEMBLY (1) Pull the starter knob about 2-3 times. (a) If the starter knob is too heavy to pull, check that each parts have been assembled as specified. (b) If the ratchet does not work, check for missing parts such as the friction spring. (2) Pull ...
Page 69 - 4-3 EXHAUST EQUIPMENT
- 66 - 14. INSTALLATION Installation has a decisive influence on engine life, ease of maintenance and inspection, frequency of inspection and repair, running costs and other related aspects. Before installing the engine, be sure to plan the installation with care, taking the points below into accoun...
Page 70 - 4-5 POWER TRANSMISSION TO DRIVE MACHINES; • Install the engine pulley as close to the engine as possible.
- 67 - 14-5 POWER TRANSMISSION TO DRIVE MACHINES 14-5-1 BELT DRIVE Note the following: • Use a V-belt rather than a flat belt. • The drive shaft of the engine must be parallel to the drive shaft of the driven machine. • The drive pulley of the engine must be in line with the driven pulley of the mac...
Page 71 - Star
- 68 - Problem and possible cause Remedy 1. Ignition system problems 1) Spark plug ・ Improper spark plug gap ・ Insulation defect ・ Carbon deposits Adjust the gap Replace Clean 2) Ignition coil ・ Insulation defect or discontinuity ・ Poor contact or broken wire ReplaceRepair or replace 3) Imprope...
Page 73 - Excessive engine oil consumption
- 70 - Problem and possible cause Remedy 1. Oil leakage 1) Loose oil drain plug Tighten 2) Faulty oil drain gasket Replace 3) Loose main bearing cover bolts Tighten 4) Faulty main bearing cover gasket Replace 5) Crankshaft oil seal (front, rear) defect Replace 2. Oil up 1) Faulty piston oil ring Rep...
Page 77 - STANDARD REPAIR TABLES; 6-1 STANDARD DIMENSIONS AND LIMITS OF USE; ITEM
- 74 - 16. STANDARD REPAIR TABLES “STD” in the following table is the parts dimension from the brand new engine or the spare parts. Whereas, “Limit” shows the maximum allowance for the parts to be used on the engine. If the measurement exceeds beyond the “Limit”, the part needs to be replaced and/or...
Page 82 - VALVE SPRING FREE LENGTH; Oil consumption has been measured under-following condition :
- 79 - ITEM STD Limit VALVE SPRING FREE LENGTH EX13EX17EX21EX27 27.4 (1.0787) VALVE SEAT ANGLE(INTAKE AND EXHAUST)* Valve cutter angle (a)* Valve contact width (b) IntakeExhaust EX13EX17EX21EX27 a: 90 ° b: 0.7 - 1.0 (0.0276 - 0.0394) 2.0 (0.0787) CHAIN LENGTH EX13 263.1 (10.3583) 266.0 (10.4726) EX1...
Page 83 - 6-2 TIGHTENING TORQUE
- 80 - 16-2 TIGHTENING TORQUE ITEM Tightening Torque N ・ m kgf ・ cm ft ・ lb. Cylinder head bolts M8 × 68 flange bolt Re-use 25.0 - 27.0 250 -270 18.1 - 19.5 When replace to newcylinder head andflange bolts 28.0 - 30.0 280 - 300 20.3 - 21.7 M8 × 35 flange bolt 17.0 -19.0 170 - 190 12.3 - 13.7 Connect...
Page 84 - MAINTENANCE AND STORAGE; 7-2 INSPECTION AND MAINTENANCE AFTER THE FIRST 20 HOURS; 7-4 INSPECTION AND MAINTENANCE EVERY 100 TO 200 HOURS (EVERY MONTH); MAINTENACE ITEMS; Governor linkage is especially sensitive to dust.; MAINTENACE ITEMS
- 81 - 17. MAINTENANCE AND STORAGE The maintenance jobs described below apply to correct use of the engine under normal conditions. The maintenance intervals mentioned in this section are not a guarantee that no maintenance is required during those intervals. For example, when the engine is used in ...
Page 85 - 7-5 INSPECTION AND MAINTENANCE EVERY 300 HOURS; (2) Drain fuel from the fuel tank and carburetor float chamber.; power output and engine malfunction.; (1) Incorrect clearance can cause low power output
- 82 - 17-5 INSPECTION AND MAINTENANCE EVERY 300 HOURS 17-6 INSPECTION AND MAINTENANCE EVERY 500 TO 600 HOURS (EVERY 6 MONTHS) 17-7 MAINTENANCE EVERY 1,000 HOURS (ANNUAL MAINTENANCE) 17-8 ENGINE STORAGE (1) Carry out the maintenance jobs described in step 16-1 above. (2) Drain fuel from the fuel tan...
