What kind of valve gear does a Honda VFR800 use?
The VFR800 was the first non-JDM motorcycle to use VTEC valve-gear. Honda used VTEC to meet tightening noise and emissions standards and to increase the peak engine horsepower. Based on the VTEC-E system, the simplified motorcycle version of VTEC employs only two of the four valves per cylinder when operating at lower engine speeds.
When did Honda change the VTEC on the VFR800?
After much criticism of the abruptness of power transition, Honda lowered the VTEC activation rpm threshold to 6,400 rpm in 2006. The VTEC disengages two cylinder valves when the engine speed drops again below 6,100 rpm. A facelifted VFR800 debuted at the 2013 EICMA show in Milan, Italy.
When did the Honda VFR braking system come out?
Honda first introduced this braking system on the 1992 Honda CBR1000F. It was based on the Unified Braking System that was introduced on the 1983 GL1100 . The sixth generation VFR was introduced in 2002. It featured dual underseat exhausts, optional ABS, DCBS linked brakes, and optional hard luggage.
When did the Honda VFR800 VTEC model come out?
Late in 2001 the VFR800 VTEC replaced it. It received a mixed reception. Owners loved the Fi model but the VTEC came with a version of variable valve timing which although simpler than the system used in cars is comparatively complex for a motorbike.
What should I do about my VFR800 VTEC valve adjustment?
The ’85 VF1000F I picked up over the winter is still waiting for a tank liner, fuel system flush, clutch slave rebuild, and general fluid / filter change. I’d rather be riding as well. Trying to save my projects for the winter – if I lived in FL, I’d be riding year round and would have the exact same problem as you.
How much does a Honda VFR800 Minter cost?
Many shops and owners don’t realise they’re significantly improved over the earlier VTECs and you should be able to get one for £4500 – £5000 for a low mile minter. A perfect one to two year old bike will be about £5500 – £6000 private sale or £6000-£7500 from a dealer. Two years ago list price for a new VFR800 was £8599.
How does a Honda VFR800 Interceptor engine work?
It uses just two of the four valves in each cylinder at low rpm. This speed up the gas flow which increases torque. At about 7,000rpm a servo opens an oilway, and the pressure pushes a pin into the gap between the valve stem and the tappet on the two unused valves.