| Specification | Detail |
|---|---|
| Model Code | BJ230AB |
| Production Years | 2024–Present |
| Engine Oil | SAE 10W-40 JASO MA2 (1.1 L) |
| Spark Plug | NGK LMAR7G |
| Battery | YTZ7S |
| Tire Dimensions | F: 90/90-18M/C 51S / R: 110/90-17M/C 60S |
| Tire Pressure | F: 2.0 bar (29 psi) / R: 2.3 bar (33 psi) |
The Kawasaki Meguro S1 ABS (BJ230AB) is not merely a modern retro motorcycle; it is a direct mechanical tribute to the 1964 Meguro 250 SG. While many manufacturers attempt to simulate heritage, the Meguro S1 carries the DNA of Japan’s oldest motorcycle brand, which was absorbed by Kawasaki in the 1960s. Engineering-wise, the BJ230AB represents a masterclass in blending air-cooled simplicity with modern Euro 5+ emissions compliance.
Engineering Overview
At the heart of the BJ230AB is a 233cc air-cooled, SOHC single-cylinder engine. This powerplant is designed for torque linearity rather than peak horsepower, providing a rhythmic pulse that mimics the original Meguro singles. The inclusion of a balance shaft ensures that while the “thumper” character remains, high-frequency vibrations are mitigated for long-distance comfort.
Maintenance Guide & Technical Specs
Lubrication System
For optimal clutch performance and engine longevity, the BJ230AB requires SAE 10W-40 JASO MA2 oil. The total capacity for a standard oil change is 1.1 Liters. Using a full-synthetic MA2 oil is recommended to prevent clutch slippage in the wet-multiplate system.
Ignition and Electrical
The engine utilizes a high-efficiency NGK LMAR7G spark plug. Given the lean-burn nature of modern air-cooled engines, maintaining the correct gap and heat range is critical to preventing pre-detonation. The electrical system is supported by a compact YTZ7S battery, which provides high cranking amps despite its small footprint.
Chassis and Contact Patch
The BJ230AB features a classic 18-inch front and 17-inch rear wire-spoke wheel configuration. To maintain the intended handling geometry and ensure the ABS sensors function within their calibrated parameters, tire pressures must be strictly maintained at 2.0 bar (29 psi) in the front and 2.3 bar (33 psi) in the rear.
Editor’s Verdict
The Kawasaki Meguro S1 ABS (BJ230AB) is a rare example of a motorcycle that prioritizes “mechanical soul” over raw data. From a technician’s perspective, its accessible layout makes it one of the most maintainable modern classics on the market. It is a definitive choice for riders who value historical pedigree and engineering transparency.