How to Change Suzuki 750 GSX-R Spark Plugs

Written by chris gilliland Google
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How to Change Suzuki 750 GSX-R Spark Plugs
(Hemera Technologies/AbleStock.com/Getty Images)

As powerful and reliable as your Suzuki GSX-R 750 may be, basic maintenance is an important part of the relationship. Among the many routines required to keep your "Gixxer" running smoothly is the mundane task of replacing the quartet of spark plugs that power the bike's 750cc motor. For many riders, getting beneath a GSX-R's motorcycle's plastic bodywork may require too much of an investment of time to change the plugs themselves. So they rely, instead, on services rendered by their local dealership. However, changing the spark plugs is easier than it appears and it could save you some money.

Skill level:
Moderate

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Things you need

  • Allen socket set
  • Socket wrench
  • Screwdriver
  • Air compressor
  • Spark plug socket
  • Spark plugs
  • Shop towels

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Instructions

  1. 1

    Remove the rider's seat, using an Allen socket to unscrew the pair of bolts that secure the rear of the seat to the frame. Lift the rear of the seat upward then pull the seat toward the rear of the motorcycle to disengage it from the frame's catch tabs.

  2. 2

    Remove the pair of bolts that secure the front of the gas tank to the frame. Lift the fuel tank upward on the pivot at the base of the tank. Support the fuel tank against the frame using the tank's support rod.

  3. 3

    Remove the air box. Pull the three air hoses from the air box. Loosen the clamps on the air box's rubber boots with a screwdriver, and pull the air box out of the motorcycle.

  4. 4

    Pull the four coil packs out of the motor's cylinders. Clear any dirt and debris that has accumulated on top of the cylinders with compressed air, directing the air into the spark plug holes that the coil packs were installed in. Remove the spark plugs using a spark plug socket attached to a socket extension.

  5. 5

    Install new, properly gapped spark plugs into the motor with a spark plug socket. Tighten the socket until it is seated firmly against the motor. Reinstall the coil packs onto the spark plugs.

  6. 6

    Reinstall the air box, tightening the clamps on the rubber boots to secure the air box to the throttle bodies. Reconnect the trio of air hoses to the air box.

  7. 7

    Remove the tank support rod and lower the fuel tank onto the frame. Insert and tighten the fuel tank bolts with an Allen socket. Reinstall the seat, firmly tightening the mounting bolts with an Allen socket.

Tips and warnings

  • Do not over-tighten the spark plugs. Excessive tightening will damage the cylinder's threads.

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