Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Spark Plug: Replacement
- Remove the battery and battery carrier.
- Remove the air cleaner case.
- Detach the connector from ignition coil.
- Remove the ignition coil.
- Remove the spark plug with a spark plug socket.
- Tighten the new spark plug lightly with hand, and then secure with a spark plug socket to the specified torque.NOTE:
- Be sure to place the gasket between the cylinder head and spark plug.
- If the torque wrench is not available, tighten the spark plug until gasket contacts cylinder head; then tighten further 1/4 to 1/2 turns.
Recommended spark plug:
NGK: SILFR6C11
Tightening torque:
21 N.m (2.1 kgf-m, 15.5 ft-lb)
- Install the ignition coil.
Tightening torque: 16 N.m (1.6 kgf-m, 11.8 ft-lb)
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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