Ignition System Inspection Adhere to the following warnings when performing any tests or adjustments while the engine is running. Work carefully around an engine that is running. Engine parts that are hot, or parts that are moving, can cause personal injury. Inspection of Distributor Rotor Exhaust fumes contain carbon monoxide (CO) which can cause personal injury or death. Start and operate the engine in a well ventilated area only. In an enclosed area, vent the exhaust to the outside. (2) Distributor rotor. NOTE: Current models do not have a resistor in the rotor and do not need to be checked for resistance. 2. Inspect the rotor (2) for breaks and cracks.
Check the rotor blade and the spring for tension. Check the rotor for fit on the distributor shaft. Replace the rotor if the spring tensionor its fit on the distributor is not correct For the correct resistance value of rotor, see Distributer in Specifications. If the engine will not start, do the steps for ignition Component Checks. Check the starting and the fuel systems for correct operation. If these systems are correct, use the procedures given in ignition System Test to check the ignition system. Ignition Component Checks Distributor Cap Inspection Spark Plug Wires Inspection 3. Inspect the spark plug wires and the ignition coil wire for wear, burnt and high voltage leaks.
Check the resistance of the spark plug wires, with a Digital Multimeter. For the correct resistance value, see Spark Plug And Spark Plug Wires in Specifications. NOTE: The Electrical System Analyzer can be used on the ohmmeter scale for the spark plug resistance test. (1) Distributor cap. The procedures that follow are given as a guide. Use these procedures to find possible solutions for ignition problems. 1. Inspect distributor cap (1). Look for breaks, cracks or dirt inside and on the outside. Clean the distributor cap inside and out. G643(E) Service Manual Chapter 4. Engine Electrical System 115 WARNING WARNING Tools Needed Digital Mutimeter or Equivalent 1