Recommended Oil: 3. This could cause it to tear. Add page 23 to Favourites. Decarbonize: 1 Tap on the muffler in the area shown in the illustration. Intake Valve Cold 0. Add page 24 to Favourites. Loosen the locknut CD and insert the 0.
Turn the adjuster in or out to obtain the proper Thickness Gauge resistance by pushing and pulling it. Tighten the locknut G. Adjuster Locknut: 10 Nm 1. Warm up engine for several minutes, then stop the engine. Add page 25 to Favourites. Add page 26 to Favourites. Install the Tachometer YUA. Start the engine and warm up for a few minutes. Adjust the engine speed by turning the adjust screw CD in or out.
Loosen the nut G. Tighten the nut G. Add page 27 to Favourites. Use a Wire Gauge or Feeler Gauge. Intake Valve Cold 0. Turn the crankshaft until the piston reaches top dead center T.
Loosen the locknut CD and insert the 0. Turn the adjuster in or out to obtain the proper Thickness Gauge resistance by pushing and pulling it. Tighten the locknut G. Adjuster Locknut: 10 Nm 1. Warm up engine for several minutes, then stop the engine. Install the Tachometer YUA.
Start the engine and warm up for a few minutes. Adjust the engine speed by turning the adjust screw CD in or out. Loosen the nut G. Turn the governor [email protected] counterclockwise until it stops. Turn the governor shaft counterclockwise until it stops.
Tighten the nut G. Use a Wire Gauge or Feeler Gauge. Spark Plug Gap: 0. Fuel tank 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Remarks Remove the parts in order.
Set the piston at compression top dead center before removal. Reverse the removal procedure for installation. Valve stem diameter: Standard: Intake: 5. Valve contact width: Standard: 0. Valve seat contact width: Standard: 0. Repeat above steps with fine compound and continue lapping until valve face shows a completely smooth surface uniformly. NOTE: Pour solvent into intake and exhaust ports only after completion of all valve work and assembly of head parts. Valve Spring Measurement 1.
Valve spring free length: Be sure to install rings so that manufacturer's marks faces to piston head. Be sure each piston ring end is positioned as illustration.
Follow proper tightening sequence. Cam lobe length : Standard: Camshaft diameter: Standard: Piston size P: Standard: Piston clearance: 0. Standard piston pin diameter: If control ring rails show excessive gap, replace all three rings. Piston ring end gap: 0. Piston ring side clearance Top ring: 0. Crankshaft runout limit: 0. Crankpin outside diameter: Oil clearance: 0. Clean all parts thoroughly. Install the connecting rod and cap onto crankcase.
Torque both cap bolts evenly. Piston ring compressor: VU Hook the rope into the sheave drum slot G and turn the sheave drum assembly clockwise. The spring will spread out suddenly when it is removed from the sheave drum.
Lift up the float so that the tip of the float valve lightly contacts the float arm, and measure the float height. This measurement should be made with the gasket removed.
Do not use any caustic carburetor cleaning solution. Black Br Brown G Green Gy Gray Or Orange R Red W Yellow C. R Ignition coil resistance Secondary : 5. I Replace oil level gauge. Replace flywheel. AC generation is not normal Check output voltage at AC receptacle. Faulty voltmeter or faulty load. I Check engine revolutions. Stay unchanged L I Return to normal l More than 3, rpm. Replace it.
I I Infinity or below standard. Swings In checking rectifier, connect tester lead wires to respective rectifier terminals. Rectifier must have one-way continuity. Check rotor rectifier. Reverse tester leads, there should be no continuity. Check resistance in rotor field coil. Standard value 4. I Continuity t Disconnection or short-circuit in field coil. Faulty rotor coil I No continuity For magnetizing: Start engine and let both terminals of condenser lightly contact corresponding terminals of lead wires from 12V battery.
DC generation is not normal. Faulty load. Stay unchanged I Return to normal Check engine revolutions i. AC voltage indicated on meter I I I. Standard resistance! Disconnect the main coil coupler G. Connect the pocket tester as shown.
Main coil resistance: 1. R x 1 Sub coil resistance 1. Disconnect the sub coil coupler G. Disconnect the condenser leads. Connect the pocket tester. Needle swings and returns back quickly-7 Correct. Use an Insulated screw driver. Do not touch either of the terminals and ground before the condenser is discharged. Rotor rectifier continuitys 1. Desolder the rotor rectifiers. Connect the pocket tester shown. No continuity-7Replace. No continuity-7Correct.
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