Difference between revisions of "Honda VFR800"

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The sixth generation (RC46) began in 2002 and featured dual underseat exhausts and available ABS (antilock brakes) in addition to the DCBS. It was the first generation of VFR to feature chain-driven rather than gear-driven cams plus VTEC valve actuation technology. In contrast to the automotive version of VTEC, where the cam timing is changed to suit the engine RPM providing a broad spread of power, the simplified motorcycle version employs only 2 of the 4 valves per cylinder when operating at lower engine speeds. All 4 valves per cylinder are utilised above 7000 rpm. These changes were a bid by Honda to meet tightening noise and emissions standards in their home market and abroad. In 2006, Honda has lowered the VTEC activation threshold as the power delivery of the 2002-2005 VTEC models tended to dip slightly before the transition point. In the 2006 edition the VTEC engages at 6400 rpm and stops working when the rpm is back to 6100.
The sixth generation (RC46) began in 2002 and featured dual underseat exhausts and available ABS (antilock brakes) in addition to the DCBS. It was the first generation of VFR to feature chain-driven rather than gear-driven cams plus VTEC valve actuation technology. In contrast to the automotive version of VTEC, where the cam timing is changed to suit the engine RPM providing a broad spread of power, the simplified motorcycle version employs only 2 of the 4 valves per cylinder when operating at lower engine speeds. All 4 valves per cylinder are utilised above 7000 rpm. These changes were a bid by Honda to meet tightening noise and emissions standards in their home market and abroad. In 2006, Honda has lowered the VTEC activation threshold as the power delivery of the 2002-2005 VTEC models tended to dip slightly before the transition point. In the 2006 edition the VTEC engages at 6400 rpm and stops working when the rpm is back to 6100.


The sixth generation has some weaknesses too:  The rectifier unit in early models was problematic and some electrical wiring was not thick enough to handle the currents of the headlight units. Also the starter-valves need to be synchronised to achieve better engine stability.{{citeneeded}}
The sixth generation has some weaknesses too:  The rectifier unit in early models was problematic and some electrical wiring was not thick enough to handle the currents of the headlight units. Also the starter-valves need to be synchronised to achieve better engine stability.





Revision as of 13:07, 7 August 2006

The Honda VFR800 Interceptor is a motorcycle introduced by Honda Motor Company in 1998.

Before the introduction of the VFR800, the VFR in 750cc form had been considered by some to be the best all-round motorcycle money could buy. The original VFR750 was produced to follow the VF750, a machine with camshafts prone to failure. Accordingly, the VFR750 motor was engineered to be more durable.

From its first sales in 1986, the VFR750 scored highly on many tests and became the benchmark for machines in the sports-touring category. By 1997, however, some saw the bike as a bit staid. Both Triumph and Ducati had presented Honda with significant sports-touring competition, so Honda responded with the VFR800 in 1998.

1998 Honda VFR800 (5th generation).

Physical characteristics

It had a new, detuned and longer-stroke RC45 power plant rather than a development of the original VFR family line. Power and torque figures were up on the old model but the torque was the real improvement. From 6000rpm the rider is propelled on a steady wave right up to the 11750rpm red line.

The new bodywork covered a frame derived from the VTR1000 Firestorm. This incorporates the VFR trademark of a single-sided swing-arm pivoted in the rear of the crankcase, thereby using the engine as a stressed member of the frame. Handling is described by some as impeccably neutral.Template:Citeneeded

The braking system departed from the normal front and rear independent arrangement and Honda fitted their DCBS linked braking system. In this system, squeezing the front brake lever applies pressure to 5 of the 6 front pistons. The rotational movement of the left caliper when engaged actuates a secondary master cylinder applies pressure to one of the rear pistons. The rear brake pedal is directly attached to the remaining two rear pistons and one front pistons. This arrangement irritated some but was praised—in some circles at least—for removing fork dive under heavy braking.

Unlike its VFR predecessors, all VFR800 models use fuel injection instead of carburetors for fuel-air mixing. In 2000, Honda updated the fifth generation VFR with a catalytic converter, oxygen sensors and an EFI system that would enter closed-loop mode under highway (cruising) operation.

2006 Honda VFR800 (6th generation).

The sixth generation (RC46) began in 2002 and featured dual underseat exhausts and available ABS (antilock brakes) in addition to the DCBS. It was the first generation of VFR to feature chain-driven rather than gear-driven cams plus VTEC valve actuation technology. In contrast to the automotive version of VTEC, where the cam timing is changed to suit the engine RPM providing a broad spread of power, the simplified motorcycle version employs only 2 of the 4 valves per cylinder when operating at lower engine speeds. All 4 valves per cylinder are utilised above 7000 rpm. These changes were a bid by Honda to meet tightening noise and emissions standards in their home market and abroad. In 2006, Honda has lowered the VTEC activation threshold as the power delivery of the 2002-2005 VTEC models tended to dip slightly before the transition point. In the 2006 edition the VTEC engages at 6400 rpm and stops working when the rpm is back to 6100.

The sixth generation has some weaknesses too: The rectifier unit in early models was problematic and some electrical wiring was not thick enough to handle the currents of the headlight units. Also the starter-valves need to be synchronised to achieve better engine stability.



1998

1998 Honda VRF800FI



The VFR800FI'98 Interceptor was sold in 1998 in only one color: Italian Red. It had a pivotless frame and linked braking system. It also had an electronic fuel injection. The serial number began JH2RC460*WM000001.



2003

2003 Honda VRF800FI



2003 Interceptor (VFR800)

   * Available colors: Red or Metallic Silver
   * Engine: 781cc DOHC liquid-cooled 90° V-4 with VTEC
   * Bore and stroke: 72.0 x 48.0 mm
   * Compression ratio: 11.6:1
   * Transmission: Close-ratio six-speed
   * Final drive: O-ring chain
   * Front suspension: 43mm HMAS™ cartridge fork with spring-preload adjustability
   * Rear suspension: Pro-Link HMAS™ single-shock with spring-preload, compression- and rebound-damping adjustability
   * Front brake: Linked Braking System; dual full-floating discs with three-piston calipers
   * Rear brake: Linked Braking System; single-disc with three-piston caliper
   * Front tire 120/70ZR-17 radial
   * Rear tire: 180/55ZR-17 radial
   * Wheelbase: 1458mm (57.4 in.)
   * Seat height: 805mm (31.7 in.)
   * Dry weight: 214 kg (472 lb)
   * Fuel capacity: 22 liters


2004

2004 Honda VRF800FI
2004 Honda VRF800FI
2004 Honda VRF800FI
2004 Honda VRF800FI



2004 Interceptor 800

   * Engine Type: 781cc liquid-cooled 90-degree V-4
   * Bore and Stroke: 72.0mm x 48.0mm
   * Compression Ratio: 11.6:1
   * Valve Train: VTEC DOHC; four valves per cylinder
   * Carburetion: Programmed Fuel Injection (PGM-FI) with automatic enricher circuit
   * Ignition: Computer-controlled digital with three-dimensional mapping and electronic advance
   * Transmission: Close-ratio six-speed
   * Final Drive: #530 O-ring-sealed chain
   * Front Suspension: 43.0mm HMAS cartridge fork with spring-preload adjustability; 4.3-inch travel
   * Rear Suspension: Pro Arm single-side swingarm with Pro-Link single HMAS gas-charged shock with seven-position spring-preload and rebound-damping adjustability; 4.7-inch travel
   * Front Brakes: Dual full-floating 296.0mm discs with LBS three-piston calipers
   * Rear Brake: Single 256.0mm disc with LBS three-piston caliper
   * Front Tire: 120/70ZR-17 radial
   * Rear Tire: 180/55ZR-17 radial
   * Rake: 25.5 degrees
   * Trail: 95.0mm (3.74 inches)
   * Wheelbase: 57.4 inches
   * Seat Height: 31.7 inches
   * Dry Weight: 472.0 pounds
   * Fuel Capacity: 5.8 gallons, including 0.8-gallon reserve
   * Emissions: This model meets CARB 2008 emissions standards.
   * Available Colors: Asphalt, Red
   * Model ID: VFR800FI
   * Warranty: 1 year

2005

2005 Honda VRF800FI



2005 Interceptor 800

   * Engine Type: 781cc liquid-cooled 90-degree V-4
   * Bore and Stroke: 72.0mm x 48.0mm
   * Compression Ratio: 11.6:1
   * Valve Train: VTEC DOHC; four valves per cylinder
   * Carburetion: Programmed Fuel Injection (PGM-FI) with automatic enricher circuit
   * Ignition: Computer-controlled digital with three-dimensional mapping and electronic advance
   * Transmission: Close-ratio six-speed
   * Final Drive: #530 O-ring-sealed chain
   * Front Suspension: 43.0mm HMAS cartridge fork with spring-preload adjustability; 4.3-inch travel
   * Rear Suspension: Pro Arm single-side swingarm with Pro-Link single HMAS gas-charged shock with seven-position spring-preload and rebound-damping adjustability; 4.7-inch travel
   * Front Brakes: Dual full-floating 296.0mm discs with LBS three-piston calipers
   * Rear Brake: Single 256.0mm disc with LBS three-piston caliper
   * Front Tire: 120/70ZR-17 radial
   * Rear Tire: 180/55ZR-17 radial
   * Rake: 25.5 degrees
   * Trail: 95.0mm (3.74 inches)
   * Wheelbase: 57.4 inches
   * Seat Height: 31.7 inches
   * Dry Weight: 472 pounds
   * Fuel Capacity: 5.8 gallons, including 0.8-gallon reserve
   * Emissions: This model meets CARB 2008 emissions standards.
   * Available Colors: Light Silver Metallic, Red
   * Model ID: VFR800FI
   * Warranty: 1 year

See also

External links