| Component | Specification |
|---|---|
| Production Years | 2019 – 2021 |
| Engine Oil | SAE 10W-40 (JASO MA/MA2) – 3.0 Liters |
| Front Tire | 100/90-18 M/C 56H (2.0 bar / 29 psi) |
| Rear Tire | 130/80-18 M/C 66H (2.5 bar / 36 psi) |
| Spark Plugs | NGK CR8E |
| Battery | YTX12-BS |
The Kawasaki W 800 (EJ800D) represents a masterclass in modern-classic engineering. While many manufacturers utilize faux-cooling fins or hidden radiators to pass emissions, Kawasaki’s EJ800D remains one of the few modern machines to feature a bevel-gear driven camshaft. This intricate mechanical arrangement, visible via the chrome tower on the right side of the engine, is a direct engineering tribute to the 1966 W1, providing a precise valve timing mechanism that eliminates the need for a traditional timing chain and offers a distinct mechanical character unique to the W-series.
Engineering Heritage & Performance
Re-introduced in 2019 to meet stringent Euro 4 emissions standards, the EJ800D model saw significant updates over its predecessor. The 773cc vertical-twin engine utilizes a 360-degree crankshaft, providing the iconic rhythmic exhaust note associated with British twins of the golden era. Despite the classic aesthetics, the EJ800D incorporates modern fuel injection with 34mm throttle bodies and a sophisticated ECU to maintain a flat torque curve, peaking at 62.9 Nm at just 4,800 rpm.
Professional Maintenance Guide
1. Lubrication System
For the Euro 4 EJ800D, oil quality is paramount for the longevity of the bevel gear drive. MotoSpecsLab recommends a high-quality synthetic or semi-synthetic 10W-40 oil. The system capacity is 3.0 liters when replacing the filter. Ensure the oil meets JASO MA2 standards to prevent clutch slippage in the wet multi-plate system.
2. Chassis and Tires
The EJ800D utilizes a traditional double-cradle frame. To maintain the neutral handling characteristics intended by Kawasaki, tire pressures must be checked weekly. The 18-inch wheel set requires 2.0 bar (29 psi) at the front and 2.5 bar (36 psi) at the rear. Given the tube-type setup of the spoked wheels, regular inspection of spoke tension is highly recommended during tire changes.
3. Ignition and Electrical
The engine utilizes two NGK CR8E spark plugs. Due to the air-cooled nature of the engine, these plugs should be inspected for heat-related fouling every 12,000 km. The electrical system is powered by a YTX12-BS AGM battery; given the lack of a kickstarter on the EJ800D, maintaining battery health via a tender during winter storage is critical.
MotoSpecsLab Verdict
The Kawasaki W 800 EJ800D is not merely a “retro” motorcycle; it is a high-fidelity mechanical reproduction of a specific era of motorcycling, updated with the reliability of modern Japanese manufacturing. It remains a top choice for enthusiasts who value mechanical transparency and tactile feedback over raw horsepower.