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Page 34 - Index - Page 36
Six and Eight Cylinder Engines (Quick Start Models)
  • Note: These engines usually have a 35 Amp battery charging capacity. Due to the size and weight of the flywheel magnets, it is highly recommended that you check to make sure the magnets are still tight in the flywheel before you service the engine. A loose or broken magnet can be deadly to you or your pocketbook.
No fire at all
  1. Disconnect the black/yellow kill wires AT THE PACK and retest. If the engines now has fire, the kill circuit has a fault-possibly the keyswitch, harness or shift switch.
  2. Disconnect the yellow wires from the stator to the rectifier and retest. If the engine fires, replace the rectifier.
  3. Check the stator resistance. You should read approximately 1000 ohms from the brown wire to the brown/yellow wires and 100 ohms from the orange to orange/black.
  4. Check the DVA output from the stator. You should have a reading of at least 150V or more from the brown wire to the brown/yellow wire (while connected to the pack) on each bank and at least 12V or more from the orange to orange/black.
  5. Check the timer bases resistance from the white wire to the blue, green and purple wires. Reading should be approximately the same on all (Typically 1 to 2 M ohms). If the readings are off, reverse the meter leads and retest to see if the readings straighten out.
  6. Check the DVA output from the timer base. A reading of at least 0.5V or more from the white wire to the blue, green and purple wires (while connected to the pack) is needed to fire the pack.
  7. Check the cranking RPM. A cranking speed less than 250-RPM will not allow the system to fire properly.
No fire or intermittent on One Cylinder:
  1. Check the timer bases resistance from the white wire to the blue, green and purple wires. Reading should be approximately the same on all (Typically 1 to 2 M ohms). If the readings are off, reverse the meter leads and retest to see if the readings straighten out.
  2. Check the DVA output from the timer base. A reading of at least 0.5V or more from the white wire to the blue, green and purple wires (while connected to the pack) is needed to fire the pack.
  3. Check the DVA output on the orange wires from the power pack while connected to the ignition coils. You should have a reading of at least 150V or more. If the reading is low on one cylinder, disconnect the orange wire from the ignition coil for that cylinder and reconnect it to a load resistor. Retest. If the reading is now good, the ignition coil is likely bad. A continued low reading indicates a bad power pack.
No fire or Intermittent on One Bank:
  1. Check the stator resistance. You should read approximately 1000 ohms from the brown wire to the brown/yellow wires and 100 ohms from the orange to orange/black.
  2. Check the DVA output from the stator. You should have a reading of at least 150V or more from the brown wire to the brown/yellow wire (while connected to the pack) on each bank.
  3. Check the DVA output on the orange wires from the power pack while connected to the ignition coils. You should have a reading of at least 150V or more. If the reading is low on one bank, disconnect the orange wires from the ignition coil for that bank and reconnect them to a load resistor. Retest. If the reading is now good, one or both of the ignition coils are likely bad. A continued low reading indicates a bad power pack.

Engines with S.L.O.W.
Engine will not rev beyond 2500 RPM:
  1. Use a temperature probe and verify that the engine is not overheating.
  2. Disconnect the tan temperature wire from the pack and retest. If the engine now performs properly, replace the temperature switch.
  3. Make sure the tan temperature switch wire is not located next to a spark plug wire.
Page 34 - Index - Page 36