Honda VFR 750 F
The Honda VFR 750 F is a sport tourer of the Japanese motorcycle manufacturer Honda. The vehicle from 1985 to 1997 offered in several models has ³ a V engine with four cylinders and a displacement of 750 cm. In 1998 it was replaced by the Honda VFR 800 FI.
The VFR 750 F reaches into all model series exceptionally high performance, significantly more than 100,000 kilometers is the rule rather than the exception. Also why and because of the striking sound processing are the VFR models searched on the second hand vehicles.
1985-1987: RC 24
In the late summer of 1985, Honda unveiled the VFR 750 F is a completely newly developed model. Also the engine was redesigned. The bike had a windschlüpfige full fairing and a light-alloy bridge frame. It was the successor to the VF 750 F and is intended as a competitor to Suzuki GSX -R 750.
Unlike the predecessor of the V4 engine of the VF 750 F had a crank pin offset of 180 degrees instead of zero degrees. The crankshaft was able to save 400 grams. The cylinder heads were redesigned. The Keihin carburetors were placed in a flow- favorable position. We used single finger lever for the valve train. The camshafts are driven via gears. Overall, the engine was about 1.2 kg lighter than the previous model. In order to improve the oil circuit ever used an oil pump before and after the oil cooler. Thus, the oil temperature was reduced by approximately 20 % and a foaming can be avoided. As exhaust system was a 4 -into-2 system. Compared to the predecessor model, the firing order was changed.
Building on the experience of racing machine RVF 750, an aluminum bridge structure made of extruded profiles was used as a framework. Also, the control head and the engine mountings were made of light metal. The rear frame consisted of tubular steel.
Through the three-spoke cast wheels, the weight could be compared to the previous reduced by 2.6 kilograms. The brake system was improved and made easier. The floating calipers of disc brakes with dual-piston brake system took on a new shape and were recalculated. The brake discs were screwed directly onto the cast wheels and cross-drilled for weight savings and better " wet braking performance ."
The seating position was sporting relaxed. So the bike was both suitable for longer trips, as well as for journeys on winding country roads. Compared with other motorcycles, the 750cc class, the VFR 750 F had a good and safe handling of bends. Even at high speeds on good roads less nervousness of the chassis or handlebars commuting were not observed.
The bike was offered in 1986 in Germany for 12,243 DM and 12,750 DM 1987. In the magazine motorcycle VFR 750 F reached regularly test wins, not because it was the fastest, but because the overall package convinced.
1988-1989: RC 24
1988 were made by Honda as part of facelift measures, further improvements to the motorcycle. So the standpipe of the front fork was increased to 41 mm. When anti-dive system TRAC was removed the setting option. To improve the brakes set to a larger brake discs on the front wheel. When the wheels are moved from 16/18-Rädern to 17 inches at the front and rear. To improve the wind protection and a higher adjustable windscreen was mounted.
Also, the engine has had a few modifications. Thus, the intake valves were changed and enlarged the air passage of the carburetor. In contrast to the previous models with V4 engine, the models reached easily mileage of 70,000 km and more.
The machine was sold in 1988 a list price of 13,550 DM and 1989 DM 14,770 in the period between 1986 and 1989 were in Germany 4458 VFR 750 F.
1990-1993: RC 36 / I
The successor of the RC 24 was introduced in autumn 1989 on the race track in Misano. Stylistically, the new model to the VFR 750 R (RC 30) was ajar.
The engine had the same stroke - bore ratio as the previous model. Through narrow cylinder heads and an enlarged to 52 degree angle carburetor inlet channels were steeper and straighter. This one leaned constructively to the motor of the RC 30. So this engine had bucket tappets actuated valves.
A larger airbox to improve the passage of the machine. In addition, the maximum power was now min-1 reached at 10,000. This vote was better suited for road use.
The 40 mm smaller cylinder heads made it possible that the engine continues to place front and deeper. This allowed the focus to be set lower. Better handling properties were reached together with the shorter wheelbase. The approximately 14 kilograms compared with the RC24 heavier bike rolled on a much wider rear tires. Thus, the Geradauslaufeigenschaften were maintained despite the improved handling. The bridge frame consisted of five square extrusions and was also on the design principle of the RC30 -oriented. The rear wheel was in a cast swingarm. The wheel itself was held by four screws.
The rear brake caliper was mounted on the swingarm. Furthermore, we sat one of the already proven double -piston floating caliper brakes. The brake discs were rigidly fixed. On an anti -dive system on the front fork has been omitted. Through improved lever deflection, the increased suspension travel at the rear wheel to 130 mm.
Further changes to the model concerned individual details. The seating position was designed more comfortable and the fold-away with a ball joint exhaust facilitated the removal and installation of the rear wheel.
In Year VFR 750F approximately 15,570 DM cost Even when model RC 36 / I had provided good care, a service life of about 100,000 kilometers not uncommon.
In 1994, a major revision of the VFR 750 F. When the trim and the shape of the headlights is oriented to the oval piston engine Honda NR 750 The most important result of the changes was the weight reduction of 10 kilograms. The cockpit now had a circuit board, which made a cabling of the individual instruments unnecessary.
The carburetors were flat slide and the exhaust system was abandoned to a collector. For the silencer was performed voluminous.
Weight reduction also took place in the alloy wheels, also the rear wheel rim was designed as a half inch narrower. The brake discs on the front wheel were mounted floating.
1998 VFR 750 F was replaced by the equipped with a new engine VFR 800 FI.