Honda VFR 800 F (EURO 4) – RC93A Specs: Oil Capacity & Tire Pressure

The Honda VFR 800 F RC93A represents the absolute zenith of the legendary V4 Interceptor lineage. While many enthusiasts point to the RC30 as the racing peak, the RC93A is the engineering highlight of refined usability; it was the first VFR to successfully balance the stringent Euro 4 emissions standards while retaining the iconic gear-driven-cam-inspired howl and the sophisticated Hyper VTEC engagement system.

Quick Specs & Maintenance Data
Production Years2017 – 2020
Engine Type782cc V4, 16V, Liquid-cooled
Engine OilSAE 10W-30 (API SG+, JASO MA)
Oil Capacity3.1 L (Filter Change) / 3.8 L (Dry)
Spark PlugsNGK IMR9E-9HES (Laser Iridium)
Tire Size (F/R)120/70 ZR 17 / 180/55 ZR 17
Tire PressureF: 2.5 bar (36 psi) / R: 2.9 bar (42 psi)
Battery TypeYTZ12S

Technical Analysis: The Euro 4 Refinement

The RC93A iteration brought critical updates to the VFR platform, most notably a revised exhaust system to meet Euro 4 compliance and the inclusion of traction control (HSTC) as standard. The 782cc 90-degree V4 engine remains the heart of the machine, utilizing Honda’s Hyper VTEC system. This system operates on two valves per cylinder at low RPMs for torque and fuel efficiency, then engages all four valves per cylinder at approximately 6,500 RPM, providing the signature ‘VTEC kick’ and a surge in top-end power.

Handling and Chassis

The RC93A features the iconic Pro-Arm single-sided swingarm, which is not only an aesthetic triumph but also provides exceptional rigidity. The 43mm Honda Multi-Action System (HMAS) telescopic forks and the Pro-Link rear shock offer a balanced ride that leans toward ‘Sport’ in the Sport-Touring spectrum. With a wet weight of approximately 242kg, the VFR rewards smooth inputs and provides rock-solid stability at high speeds.

Maintenance Guide for Owners

1. Oil Service

To maintain the longevity of the VTEC actuators, high-quality synthetic oil is mandatory. The RC93A requires SAE 10W-30 meeting JASO MA standards. A standard oil and filter change requires 3.1 liters. Always check the level via the sight glass with the bike on its center stand.

2. Ignition System

The RC93A utilizes NGK IMR9E-9HES Laser Iridium plugs. These are high-performance components designed for the high-heat environment of the rear cylinder bank. Given the complexity of accessing the rear plugs, ensure they are torqued correctly to prevent future leaks.

3. Tires and Pressures

For optimal handling and to prevent ‘cupping’ of the front tire—a common issue on heavier sport-tourers—maintain a strict 2.5 bar (36 psi) in the front and 2.9 bar (42 psi) in the rear. The 180/55 ZR 17 rear fitment allows for a wide range of modern sport-touring rubber like the Michelin Road series or Pirelli Angel GT.

Verdict

The Honda VFR 800 F (RC93A) is a connoisseur’s motorcycle. It lacks the raw horsepower of modern liter-bikes but offers a mechanical soul and build quality that few contemporary machines can match. It remains the definitive choice for the rider who values engineering heritage and the unique character of a V4 engine.

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