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Autodoc£2.55Visit shop CHAMPION Spark plug VW,AUDI,MERCEDES-BENZ OE001/T10 46229251,12121257513,12121258158 Engine spark plug,Spark plugs 12121258159,12121258973,12121265595
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The Champion N9YC spark plug is an essential component for owners of classic motorcycles seeking reliable ignition and consistent engine performance. Engineered as an original equipment equivalent, it excels at providing stable combustion across varied riding conditions. While this plug is highly durable, users should note that it is designed as a non-resistor model, which may require specific attention to interference compatibility depending on your motorcycle's electrical system.
| Model Part Number | 136.03.61 |
|---|---|
| Brand | Champion |
Yes, it is factory set to a 0.9 mm gap, though it is good practice to verify this with a feeler gauge before installation.
Yes, the Champion N9YC features an unscrewable terminal to accommodate different styles of spark plug wire connectors.
The N9YC is designed for classic engines; modern fuel-injected systems often require resistor-type plugs to prevent interference with ECU electronics.
This model features an electrode prominence of 1.5 mm to aid in efficient combustion.
No, the Champion N9YC is a non-resistor spark plug.
Replacement intervals depend on your motorcycle's manual, but generally, spark plugs should be inspected every 5,000 to 10,000 miles.
Remove the plug to inspect for carbon fouling or excessive electrode wear and verify the gap is still set to 0.9 mm.
Ensure the spark plug wire is fully seated on the terminal and check the battery voltage, as a weak spark may struggle to ignite cold fuel mixtures.
Confirm if your vehicle's service manual requires a resistor-type plug; if so, the N9YC non-resistor model may be inappropriate for your specific setup.
To ensure proper installation, always use a spark plug socket and a torque wrench to avoid over-tightening or damaging the cylinder head threads. Before installation, confirm that your motorcycle's ignition system is compatible with non-resistor plugs to avoid radio frequency interference. When performing routine maintenance, inspect the electrode for color—light tan typically indicates healthy combustion—and check the 0.9 mm gap using a feeler gauge to ensure it has not widened due to normal electrode erosion over thousands of miles.
