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1987 VFR400RH ..... NC24
| Engine |
90¡ V4 4-stroke 16 valve DOHC (Gear Driven) |
| Bore & Stroke |
55.0mm x 42.0mm - displacement 399cm3 |
| Compression |
11.3:1 |
| Power |
60bhp @ 12,500rpm |
| Torque |
3.7kg-m @ 10,000rpm |
| Capacity |
399cc |
| Gearbox |
6-speed constant mesh |
| Dry Weight |
165kg (375lbs) |
| Fuel Tank |
18 litres |
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Carburetor
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4 x 29mm Keihin
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Chassis
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Twin spar aluminium frame
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Wheel Base
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1345 mm (53.0in.)
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Seat Height
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780 mm (30.7in.)
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Suspension
Front
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41mm Telescopic, coil spring, oil damped,
rebound damping force air adjustable (8psi - 11psi)
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Rear
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Pro-Arm Mono shock, fully adjustable
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Brakes
Front
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Twin dics (296mm), Nissin 2 pot caliper
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Rear
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Single disc (220mm), Nissin 1 pot caliper
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Tires Front
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100/90 H16
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Rear
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130/70 H18
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| Cooling |
liquid |
| Final Drive |
chain |
| Top Speed |
219 Kph or 136mph |
| 1/4 mile |
12.6 @ 175 Kph or 109mph |
| Fuel Economy |
42mpg |
| Range |
257 Klicks or 160miles |
| Front 120/60R17 32psi |
|
| Rear 150/60R17 36psi |
|
| Performance Bridgestone are the BT90 [Now replaced by
BT96] |
| All-Round Bridgestone are the BT92 dual-Compound |
| VFR400R |
| 1986: VFR400RG (NC21) |
| 1987: VFR400RH (NC24) with a single headlight and Pro-arm
rear suspension |
| 1989: VFR400RK (NC30) RC30 lookalike with new bodywork,
twin headlights, exhaust was on left side. |
| RVF400R |
| 1994: RVF replaced VFR400R with new frame, upside-down
forks, 17in rear wheel. The RVF also has smaller carbs due to the
Japanese 60hp restriction |
| Service intervals for 400cc sports bikes
come at 3000 and 6000 miles. |
| 3000 mile service includes: |
| Air filter check / replace, change oil and filter, check
/ replace spark plugs, check brake pads, chain and chassis fasteners.
|
| 6000 mile service is as 3000 mile, plus:
do a Valve check and adjustment, plus carb check and adjustment. |
| The plastic comes off really quickly |
For the seat pod:
- Remove the rear seat pad.
- Undo two allen screws where the pod meets the tank.
- Undo two allen screws hidden underneath the back of the front
seat pad (which also release the front pad).
- Disconnect the rear bulbs.
- Pull the whole lot up and backwards.
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For the fairing lowers
- undo the 3 screws on the mid panels (only the rearmost on each
side is actually a screw. The others are quick release fasteners).
- Remove the Black plastic lugs near the radiator.
- The side panels should now swing out.
- Undo the 4 allen screws holding the lower to the bike. It is
easier to get the lower off if you undo the 3 posidrive screws
that hold the plastic that funnels air to the radiator.
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In standard trim an NC was restricted to
around 111 mph or 180 klicks :-
The restriction is controlled by a sensor in the speedo, which can
be circumvented fairly easily.
- First remove the speedo assembly - two bolts, speedo cable and
the two connector blocks.
- Remove the cover from the speedo - Lots of black posidrive screws
plus the odometer knob. This is held in place by a tiny posidrive
screw in the end, which is normal ......
- Remove the speedo unit - undo 4 silver posidrive screws at the
rear of the assembly.
- You should now be able to see the sensor. It is a cam shaped
disc attached to the speedo drive, which makes contact with a
metal strip (you will see its connected to one of the two wires
that come in through the back of the speedo) at the magic 180
klick mark. All one needs to do is bend the strip out a tad so
it doesnt make contact with the disc and snap ..... the bike is
derestricted.
You will also see that the two wires entering the speedo are connected
together by a resistor. This is just to tell the bikes electrics if
the sensor has been disconnected, and if it is not in the circuit
causes the bike to misfire above 5500 rpm.
Disclaimer: This work if tried is entirely at your risk |
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