Suzuki C 800 INTRUDER – WVBM/05 Specs: Engine Oil, Gap & Tire PSI

Specification Data
Production Years 2005 – 2017
Engine Type 45° V-Twin, Liquid-cooled, SOHC
Engine Oil SAE 10W-40 (API SF to SL, JASO MA/MA2) – 3.0 Liters
Front Tire 130/90-16 M/C 67H
Rear Tire 170/80-15 M/C 77H
Spark Plug NGK DPR7EA-9
Battery YTX12-BS

The Suzuki C 800 Intruder, designated internally as the WVBM/05, represents a pivotal moment in cruiser engineering. While many competitors in the mid-weight class clung to traditional carburetion well into the mid-2000s, the C 800 was an early adopter of the Suzuki Dual Throttle Valve (SDTV) fuel injection system. This technology, derived from the GSX-R sportbike lineage, allowed this classic cruiser to maintain a smooth, linear power delivery while meeting increasingly stringent Euro emissions standards without sacrificing its signature 45-degree V-twin pulse.

Engineering Overview

The heart of the WVBM/05 is its 805cc liquid-cooled engine. Unlike air-cooled counterparts, the C 800 utilizes a sophisticated cooling system that allows for tighter internal tolerances and consistent performance during long-distance touring. The power is delivered to the rear wheel via a low-maintenance shaft drive, a feature highly prized by long-distance riders for its cleanliness and reliability compared to chain-driven rivals.

Maintenance & Technical Specifications

Lubrication System

For optimal engine longevity and clutch performance (as the oil lubricates both the engine and the wet clutch), MotoSpecsLab recommends a high-quality 10W-40 synthetic or semi-synthetic oil. The total capacity for an oil and filter change is 3.0 liters. Ensure the oil meets JASO MA2 standards to prevent clutch slippage.

Chassis and Tires

The C 800’s stability is largely dependent on correct tire maintenance. The factory specifies a 130/90-16 front and a wide 170/80-15 rear. Pressure management is critical for handling:

  • Front: 2.0 bar (29 psi)
  • Rear (Solo): 2.0 bar (29 psi)
  • Rear (Dual/Loaded): 2.5 bar (36 psi)

Electrical System

The ignition system relies on NGK DPR7EA-9 spark plugs, gapped to provide a consistent spark for the fuel-injected V-twin. The starting system is powered by a YTX12-BS battery. Given the parasitic draw of modern fuel injection ECUs, MotoSpecsLab recommends using a battery tender during winter storage to prevent deep discharge.

Editorial Verdict

The Suzuki C 800 Intruder (WVBM/05) remains a benchmark for reliability in the cruiser market. Its blend of traditional ‘Valusia’ styling with modern SDTV fuel injection makes it an accessible yet technically sophisticated machine. For the DIY mechanic, the C 800 is relatively straightforward, provided the shaft drive and cooling system are inspected at regular 6,000-mile intervals.

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