BenutzerhandbuchInhaltsverzeichnisChapter 1: Introduction7Professional Service Manual Intent7Safety7Fasteners9Assembly instructions9Model and serial number10Maintenance11Air filter (summer engines)12Oil type and capacity13Changing the oil14Fuel15Fuel filters15Valve lash17Cleaning the engine19General torque specifications20Maintenance Chart20Frequently used specifications21Chapter 2: Basic Troubleshooting23Definitions23Introduction23Steps to troubleshooting23Define the problem23Identify factors that could cause the problem24Repairing the problem29Prime test30Leak-down test30Compression test32PCV testing33Chapter 3: Air Intake systems35Heat box (snow engines)35Air filter (summer engines)36Air filter base and control panel (summer engines)38Carburetor and Insulator40Chapter 4: The Fuel System and Governor43Inspecting the fuel43Test fuel for alcohol44Fuel tank vent45The fuel filter46Inspect the fuel lines46The fuel tank47Evaporative (EVAP) emissions system48Troubleshooting the EVAP System50Charcoal canister52Roll over valve53Choke54Primers (snow engines)56Carburetors57Inspecting the carburetor57Disassembly and rebuilding of the carburetor58Fuel shut-off valve62Governor64Governor arm64Governor shaft65Governor cup and the governor gear66Governor adjustment67Chapter 5: Lubrication69Oil type and quantity69Oil dip stick70Dip stick tube removal71Lubrication system72Positive crankcase ventilation valve73Chapter 6: Starter and Charging Systems75Recoil Starter Removal75Starter Cup76Starter Rope77Starter pulley and recoil spring79Electric starter81Charging system83Charging system testing84Stator85Rotor85Chapter 7: Ignition System87Troubleshooting the ignition system87Stop switch88Remote (ignition) stop switch (snow engines)89Test for ignition that won’t turn off90The module91Module removal92Installing the module and setting the air gap93Flywheel94About the spark plug95Cleaning the spark plug95Inspection of the spark plug95Spark plug removal95Chapter 8: Exhaust97Summer engines97Spark arrestor (if equipped)97Muffler removal/replacement98Muffler removal/replacement (snow engines)100Chapter 9: Cylinder Head103Cylinder head removal103Cylinder head installation106Valves107Chapter 10: Crankshaft, piston and Connecting Rod111Crankshaft inspection114Piston Inspection115Connecting rod inspection117Cylinder inspection117Balance Shaft (483 & 490)118Reassembly119Engine specifications chart121Engine torque values chart125Chapter 11: Failure Analysis127Abrasive Ingestion127Insufficient lubrication130Engine Overspeed131Overheated132Mechanical Breakage/ Wear133Detonation/preignition133Größe: 5,23 MBSeiten: 136Language: EnglishHandbuch öffnen
