| Component | Specification |
|---|---|
| Production Years | 2007–2009 (ZGT40A) |
| Engine Oil | SAE 10W-40 (4.0 L) |
| Front Tire | 120/70 ZR 17 |
| Rear Tire | 190/50 ZR 17 |
| Tire Pressure (F/R) | 2.9 bar / 2.9 bar (42 psi) |
| Battery Type | YTX14-BS |
| Spark Plug | NGK CR9EIA-9 |
The Kawasaki GTR 1400, known in North America as the Concours 14, represents a landmark in sport-touring history. Engineering Highlight: The ZGT40A was the first mass-production motorcycle to utilize Variable Valve Timing (VVT). By hydraulically advancing or retarding the intake camshaft timing, Kawasaki engineers successfully bridged the gap between the raw, high-RPM power of the Ninja ZX-14 and the smooth, low-end torque required for heavy-duty touring.
Technical Architecture
At the heart of the ZGT40A is a 1,352cc inline-four engine housed within a unique aluminum monocoque frame. This design uses the engine as a stressed member, significantly increasing torsional rigidity while keeping the bike’s profile slim. Power is delivered to the rear wheel via the Tetra-Lever shaft drive system, which minimizes the ‘shaft-jacking’ effect common in traditional shaft-driven motorcycles.
Maintenance Guidelines for the ZGT40A
For the professional technician or the dedicated owner, maintaining the GTR 1400 requires precision. The high-performance nature of the engine necessitates strict adherence to fluid specifications.
- Lubrication: Use a high-quality synthetic or semi-synthetic SAE 10W-40 oil. The system requires 4.0 liters for a full change with filter.
- Ignition: The ZGT40A utilizes Iridium NGK CR9EIA-9 plugs. These are critical for maintaining the efficiency of the VVT system and ensuring clean combustion across the powerband.
- Electrical: The KIPASS (Kawasaki’s Intelligent Proximity Activation Start System) places a constant minor draw on the YTX14-BS battery. If the bike is stored for more than two weeks, a smart tender is highly recommended.
Chassis and Handling
Despite its wet weight exceeding 300kg, the ZGT40A maintains surprising agility. This is largely due to the 43mm inverted forks and the 190/50 ZR 17 rear tire. To ensure stability at high speeds, Kawasaki mandates a high tire pressure of 2.9 bar (42 psi) for both ends; running lower pressures can lead to premature cupping of the front tire and sluggish turn-in.
Editor’s Verdict
The Kawasaki GTR 1400 ZGT40A is a masterclass in ‘over-engineering.’ While the complexity of the VVT and the monocoque frame requires more diligent maintenance than a standard UJM (Universal Japanese Motorcycle), the payoff is a machine that offers supersport performance with transcontinental comfort. It remains a benchmark for the sport-touring category.
Frequently Asked Questions
Q: How often should the valves be checked?
A: Kawasaki recommends a valve clearance inspection every 42,000 km (26,000 miles). Due to the VVT system, this should be performed by a technician familiar with the ZGT platform.
Q: Is the KIPASS system reliable?
A: Generally, yes. However, ensure the key fob battery is replaced annually to prevent communication errors between the fob and the ECU.