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Only fires on 2 out of 4 spark plugs - Honda Motorcycles

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  • jeff ray Jan 14, 2013

    i can swap ic boxes and the 2 that dnt fire will fire and or just unplug one box and leave one pluged and it will fire on the 2 that waznt so everything is workin just not together . when i turn the kill switch on handle bar from run to stop the 2 thats not fireing will fire

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  • 248 Answers

Sounds like ignition coil / lead issue. I don't know the specifics of your bike but I am guessing by the fault that there is an ignition coil pack on top of each spark plug. Try swapping the coils from the working ones to the non-firing ones and see if the problem is consistent. Otherwise you are probably looking at wiring issues.

Posted on Jan 12, 2013

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1 Answer

What is the Wire Order with distributor?


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1 Answer

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Firing Order diagram for 2006 Ford Explorer


Hope this helps. The ignition coil:
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  • fires 2 spark plugs simultaneously.
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69efa96.jpg

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1999-04 4.0L Engine Firing order: 1-5-3-6-2-4 Distributorless ignition system

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4.7L Engine Firing order: 1-8-4-3-6-5-7-2 Distributorless ignition

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Change spark plugs on 2007 Toyota Camry


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1 Answer

I need the diagram to put the spark plug cables


2003 Chevrolet Malibu 3.1L SFI OHV 6cyl
Spark Plug Wires - Removal & Installation

3.5L Engine
  1. Before servicing the vehicle, refer to the Precautions Section.
    NOTE Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.
  2. Remove the intake manifold cover, if required.
  3. Disconnect the left side spark plug wires from the spark plugs.
  4. Disconnect the left side spark plug wires from the ignition coil.
  5. Remove the spark plug wire clips from the Manifold Absolute Pressure (MAP) sensor bracket and the heater inlet and outlet pipe tab.
  6. Remove the spark plug wire assembly.
  7. If replacing only one plug wire, open the retaining clips and remove the appropriate spark plug wire.
  8. Disconnect the right side spark plug wires from the spark plugs.
  9. Disconnect the right side spark plugs from the ignition coils.
  10. Remove the spark plug wire assembly.
  11. If replacing only one plug wire, open the retaining clip and remove the appropriate spark plug wire.
To install:
  1. Install the spark plug wire assembly.
  2. Connect the right side spark plugs to the ignition coils.
  3. Connect the right side spark plug wires to the spark plugs.
  4. If replacing only one plug wire, open the retaining clip and install the appropriate spark plug wire.
  5. Install the spark plug wire assembly.
  6. Connect the left side spark plug wires to the spark plugs.
  7. Connect the left side spark plug wires to the ignition coil.
  8. Install the spark plug wire clips to the MAP sensor bracket and the heater inlet and outlet pipe tab.
  9. If replacing only one plug wire, open the retaining clips and install the appropriate spark plug wire.
  10. Install the intake manifold cover, if required.

Fig. 2.2L Engine Firing Order: 1-3-4-2 Distributorless ignition system
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Fig. 3.1L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
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Fig. 3.5L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
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Fig. 2.4L Engine Firing order: 1-3-4-2 Distributorless ignition system
2c9af72.jpg


Fig. 3.1L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system
d929c16.jpg


Fig. 2.2L Engine Firing Order: 1-3-4-2 Distributorless ignition system
f357cd3.jpg

Fig. 3.5L & 3.9L Engines Firing order: 1-2-3-4-5-6 Distributorless ignition system
09e9db9.jpg

I really hope help you with this (remember rated this help) Good luck.

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