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The Hero Honda CBZ is a motorcycle launched in early 1999 by Hero Honda, with an original Honda 156.8cc single-cylinder engine. The styling of the bike was a scaled version of the Honda CB series.

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Hero Honda CBZ

Manufacturer	Hero Honda
Parent company	Honda
Production	1999–2012
Successor	CBZ Extreme
Class	Commuter Sports
Engine	156.6 cc (9.56 cu in) 4-Stroke OHC Single-cylinder engine
Bore / stroke	63.5 mm × 49.5 mm (2.50 in × 1.95 in)
Compression ratio	8.5:1
Top speed	130Kmph
Power	12.8 Bhp@8000rpm
Torque	12.7 Nm@4500rpm
Ignition type	CDI Ignition System
Transmission	5 speed constant mesh, chain
Frame type	Tubular, Single Cradle Frame
Suspension	Front: telescopic fork Rear: swingarm
Brakes	Front: 240 mm disc Rear: 130 mm drum
Tires	Front : 2.75 x 18 – 42 P and Rear : 100 / 90 x 18 – 56 P
Wheelbase	1,335 mm (52.6 in)
Dimensions	L: 2,100 mm (83 in) W: 755 mm (29.7 in) H: 1,130 mm (44 in)
Seat height	805 mm (31.7 in)
Weight	138 Kg (dry)
Fuel capacity	12.5 l (2.7 imp gal; 3.3 US gal), 2.5 l (0.55 imp gal; 0.66 US gal) Reserve
Fuel consumption	50Kmpl
Turning radius	2.10 m (6 ft 11 in)

The CBZ has an over-square engine with a Keihin slide type carburetor with accelerator pump. It has a larger spring operated nozzle to provide a richer fuel air mixture into the engine for better acceleration. An air injection to new emission standards, including Euro1.

CBZ

The bike was launched as Hero Honda CBZ in India. It was Powered by an Original Honda 156.6cc.The engine was based on Honda CRF 150F and it came equipped with TPFC.[1] The term TPFC Means Transient Power Fuel Control system. This system uses a constant-choke carburetor. This Carburetor Play an Major role by increasing the speed of the without any Power lag and Vibration jerks. The throttle valve inside the Carburetor creates the vacuum which operates a diaphragm pump, Which helps to controls the air-fuel ratio inside the engine through a tapered jet. Hero Honda CBZ is first and last bike to get TPFC Technology which gives a reasonable amount of boost by sending additional fuel into the engine when the throttle is opened. The model went unchanged more or less for five years. In 2004, a new variant called CBZ* (star) was launched with revised graphics and addition of self start, but it does not inspire CBZ enthusiastic which bike due to over enthusiastic use of graphics and significantly higher price compared to its competitors. The bike was discontinued after September 2005. The CBZ was followed after a gap of two years by the CBZ-Xtreme, which shared no parts with the CBZ, and had a 149cc engine and five-speed gearbox.

Brief about TPFC Working

[1] Transient Power Fuel Control system uses its nozzle inside the Carburetor to sprays petrol inside the engine. So, when the rider opens the throttle suddenly. it will give power instantly to rev the engine without any issues, nearly equal to Fuel injection concept but it is powered mechanically, whereas Fuel injection is an electronic concept. This increases the throttle response crisps as like Fuel Injection and the engine feels lively. However, this increases the emission levels and TPFC Accidentally waste some amount of fuel, Because, the accelerator pump inject some extra amount fuel when the rider applies sudden throttle compensate for lean air-fuel mixture which it generates. Hence, TPFC was consequently discontinued. Later, the Fuel injection technology replaced the carburetor, it performs the same mechanism but drastically improves the fuel efficiency, due to correct level of air-fuel mixture performed electronically instead of old Carburetor mechanism.

References

External links

• Media related to Hero Honda CBZ at Wikimedia Commons

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