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Honda VFR 750F-M

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Make Model

Honda VFR 750F-M

Year

1991

Engine

Four stroke, 90°V-four cylinder, DOHC, 4 valve per cylinder

Capacity

748 cc / 45.6 cub in

Bore x Stroke 70 x 48.6 mm
Cooling System Liquid cooled
Compression Ratio 11.0:1
Lubrication Forced pressure and wet sump

Induction

4x 36 mm Keihin CV carburetors

Ignition 

Digitalized full transistor ignition

Spark Plug NGK CR8EH9 or ND U24FER9
Starting Electric

Max Power

74 kW / 102 hp  @ 9500 rpm

Max Power Rear Tyre

65.7 kW / 88.2 hp @ 9800 rpm)

Max Torque

76.5 Nm / 7.8 kgf-m / 56.4 lb-ft @ 8500 rpm
Clutch Wet, multiple discs, cable operated

Transmission 

6 Speed constant mesh

Final Drive Chain
Primary Reduction 1.939 (64/33)
Final Reduction  (sprockets)  2.6875 (43/16)
Gear Ratio 1st 2.8461 (37/13)
2nd 2.0625 (33/16)
3rd 1.6315 (31/19)
4th 1.3333 (28/21)
5th 1.1538 (30/26)
6th 1.0357 (29/28):1
Frame Twin-spar aluminum diamond

Front Suspension

41mm Showa cartridge forks, no external adjustment

Front Wheel Travel 140 mm / 5.5 in

Rear Suspension

Pro-link single sided swingarm, adjustable preload

Rear Wheel Travel 130 mm / 5.2 in
Front Brakes

2 x 296mm discs, 2 piston calipers

Rear Brakes Single 256mm disc,1 piston caliper
Front Wheel 17 x 3.5 in
Rear Wheel 17 x 3.5 in

Front Tyre

120/70 VR17

Rear Tyre

170/60 VR17
Rake 26°
Trail 100 mm / 3.9 in
Dimensions Length 2180 mm / 85.8 in
Width     700 mm / 27.6 in
Height  1185 mm / 46.7 in
Wheelbase 1470 mm / 57.9 in
Ground clearance 130 mm / 5.1 in

Dry Weight

216 kg / 476 lbs

Wet Weight 236 kg / 520 lbs

Fuel Capacity

19 Litres / 5.0 gal

Reserve 3.5 Litres / 0.92 gal

Consumption Average

6.7 L/100/km / 15.0 km/l / 35.2 mpg

Braking 60 km/h / 37 mph - 0

13.6 m / 44.6 ft

Braking 100 km/h / 62 mph - 0

36.9 m / 121 ft

Standing ¼ Mile  

11.2 sec / 193.7 km/h / 120.4 mph

Top Speed

239.4 km/h /148.8 mph

Reviews  HONDA VFR INTERCEPTOR HISTORY / VFR INFO
Road Test Motosprint 1990
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If you wanted one 1990 sportbike talented enough to act like a garage full, your choice came down to one machine: the VFR750F. It delivered V-4 thrust, sophistication and charisma in one meticulously finished, marvelously rapid red package.

Beginning with the 1983 VFR750F Interceptor, Honda's V-4 had established itself as the high-performance signature of motorcycle engineering. Compact and blessed with an amazingly broad power band, it was the most advanced engine on the street. By 1990, four gear-driven camshafts opened and closed its 16 valves precisely up to the 11,500-rpm redline. Down below, a 180-degree crankshaft helped boost high-rpm horsepower. Up around 8000 rpm, the sound was somewhere between a kinder, gentler NASCAR stocker and the Hound of the Baskervilles.

Power flowed to the pavement in a measured, marvelously accessible rush from 3500 rpm to the 9500-rpm peak, where the bike cranked out 79.2 horses on the Cycle magazine dynamometer. There may have been more powerful 750s, but none of them generated sporting thrust so effortlessly.

A new twin-spar aluminum frame and single-sided Pro-Arm swingarm laid the foundation for handling as fluid as the engine's power delivery. Positioning the engine lower and closer to the front wheel than its predecessors gave the '90 VFR neutral, predictable handling manners. A slightly shorter wheelbase helped as well. The 41mm fork and hydraulically adjustable, gas-charged shock did an admirable job of erasing imperfect pavement. Twin-piston brakes were at the top of their class in 1990, and no other 750 had better wind protection.

Factor in ergonomics that kept you comfortable through a whole day's worth of twisty roads, and you had a machine made for riders capable of appreciating its unparalleled refinement. Riders like you'd find writing for Cycle magazine, for example. "All we can tell you," Cycle's editors said in their May 1990 test, "is that the VFR-F is a polished jewel, a streetbike that addresses real street needs rather than attempting to produce towering statistics. It's a pentathlete in a world of single-event specialists, and its charm extends much further than any specifications page can ever show."

That magic combination of technology, charisma and broadband performance made the 1990 VFR — and every one since — the sportbike for all reasons.

Review

The motorcycling world was immensely impressed when Soichiro Honda introduced the CB750 in-line four in 1969, but by 1980 the copycats had relegated the concept to the initials UJM—Universal Japanese Motorcycle. However, the fertile mind of Mr. Honda had more ideas, and he felt that a V-4 would be the ideal sporting engine. Clean sheet of paper, a few million yen, total secrecy…and the project zoomed ahead.

Occasionally even a reputable company like Honda can screw up—which it did with its first high-performance V-4. The VF750F Interceptor was introduced late in 1982, the motorcycling world was again agog…but when the beast was thoroughly thrashed things went wrong with the top end, notably inadequately oiled camshafts and their bearings. Of course Honda fixed the problems, at great financial expense, as well as expense to the company’s reputation. Sales slumped.

The backroom boys at Honda got to work on redoing the Interceptor. They were going to build a V-4 that would win customer confidence back…no matter how much it cost. For 1986, the VF became the VFR, and about the only connection between the two was the bore and stroke, 70 x 46.8mm. The parts fiches were entirely different.

Most notable was the styling; whereas the VF had looked very race-tracky, the VFR appeared more street-oriented, even with the sporty full fairing. Honda had decided to set the roadsters very apart from the racers, like the factory’s RVF, as the money was in selling to the public, not the extravagantly expensive race bikes.

The roadster had some racy mods, like changing the cam drive from chain to gear—at about four times the cost. The cam chains on the VF had stretched a bit too easily, and this new gear layout involving eight gears in the middle of the engine, was advertised on the fairing. An even more basic change was with the crankshaft, using a 180-degree layout rather than the previous 360, allowing for changes in the heads that permitted larger carburetors—36mm instead of 34.

A lot of general Jenny Craig-work went on, the end result being that the VFR engine weighed about 10-percent less than the VF’s, and redline had been moved up 500 rpm from 10,500 to an astonishing 11,000. With a large increase in horsepower—22 said the press releases! Those were factory claims, taken at the crankshaft, or maybe piston dome. One magazine that tested both bikes produced a rear-wheel reading for the VF of 77 horsepower, the VFR, 82. Dynos generally do not lie.

The chassis was a sport rider’s delight. The aluminum twin-spar frame weighed just a tad over 30 pounds, and had enough flex to keep both the street rider and track-day enthusiast happy. The engineers had shaved, shaved, shaved away, right down to aluminum footpegs, and the VFR weighed in at 44 pounds less than the VF. Half an inch had been taken off the wheelbase too, now down to 58.1 inches. Speaking of wheels, the VFR retained the 16-inch front, 18-inch rear of the VF. The Showa 37mm fork was air-adjustable and had 27.5 degrees of rake, 4.3 inches of trail. The Pro-Link single shock was good, but certainly not top quality, and offered only preload adjustment. The five-gallon tank allowed 170 miles between fill-ups.

All this could be had for a rather pricey (compared to other 750s) $5,300—add another four grand if you wanted the race kit, which included very trick titanium valves. But the stocker could turn a quarter-mile in under 11 seconds.

Then the VFR750F Interceptor did not appear on showroom floors in the U.S. for the next three years due to the Harley-imposed 700cc tariff, though a 699cc version did stay on through 1987. In 1988, Europe got the track-worthy RC30, a.k.a. VFR750R, though it was not imported here until 1990.

Which also brought about the second iteration of the VFR750F—without the Interceptor name. Insurance companies were penalizing riders who had the audacity to own machines with names like Interceptor and Hurricane, so Honda merely left them off the fairing. This new VFR came with a revised chassis using a single-sided swingarm, compliments of the French company ELF (Essence & Lubrifiants de France), which specialized in new frame designs. The front fork had been enlarged to 41mm, using cartridge dampers, with a 26-degree rake, trail of 3.9 inches. And 17-inch wheels. It weighed 30 pounds more, as well. But remember, this was a roadster, not a racer.

Buyers were happy. Sales were satisfactory. But customers are always looking for something new, or new-ish. For 1994, the VFR750F got a stem-to-stern redesign, with NR750-influenced styling, less weight, more power, a larger 5.5-gallon gas tank, and new paint—all red, with black belly pan and black wheels. The colors stayed the same for the next three years. Prices were now competitive, with the VFR going for $8,200, the similar Kawasaki ZX-7 and Suzuki GSX-R750, $8,100.

If one were serious about winning on the track, an RC30 cost $15,000, twice the price of the VFR. Add another 10 grand for the very serious go-fast parts.

But enough of this 750 nonsense. The VFR was a sportsman’s motorcycle, good for the road and the occasional track day, not for racing. So why leave it at 750? For 1998, the engine was enlarged to 781cc and it was called the VFR800FI, the “I” standing for fuel injection. And the Interceptor name returned, after it had gone missing for many years.

(This Retrospective article was published in the April 2014 issue of Rider magazine.)

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