Where is the spark plug located on a Zongshen three-wheeled motorcycle?
2 Answers
Most spark plugs are located at the front right side of the engine, while a few may be at the front left side. Generally, you can see them by removing the cargo box under the seat or the small front panel beneath the seat. Steps for replacing the spark plug: Open the engine hood, lift the plastic cover of the engine, and remove the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage distributor wires in the firing order and secure the cover. Effects of a faulty spark plug: If the spark plug is damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, reduced power, and most notably, difficulty in ignition, affecting the normal operation of the vehicle. Severe spark plug erosion, blistering at the top, damaged or melted electrodes, and burn marks all indicate that the spark plug is damaged and should be replaced.
As an experienced mechanic, I've seen countless spark plug locations on Zongshen trike motorcycles. It's positioned at the top rear of the engine, where you'll find a metal cylinder connected to the high-voltage wire. Just follow the thick ignition coil wire and you can't miss it. There might be slight variations between models – single-cylinder engines have one, while multi-cylinder engines have one per cylinder head. When removing, first detach the high-voltage cap, then use a 16mm socket to turn counterclockwise, being careful not to let dust fall into the hole. By the way, spark plugs generally need replacement every 30,000 kilometers. If your bike lacks acceleration or fuel consumption increases, first check if the spark plug tip is carbon-fouled or if the electrode is eroded. If replacing it yourself, make sure to match the model – NGK's DR8EA is the most commonly used.
