Kawasaki GPz305 Belt Drive

File:Kawasaki-GPZ-305 1.jpeg
Kawasaki GPz305 Belt Drive
Manufacturer	Kawasaki
Production	1983 -
Engine	Four stroke Parallel twin SOHC
Compression ratio	9.7:1
Top Speed	101 mph
Ignition	Magneto CDI
Transmission	6 Speed
Suspension	Front: Telescopic forks Rear: Swing arm
Brakes	Front: 2x disc Rear: Drum
Front Tire	90/90-18
Rear Tire	110/80-18
Wheelbase	1355 mm / 53.3 in
Seat Height	784 mm / 30.8 in
Weight	147 kg / 324 lbs (dry), 160.6 kg / 354 lbs (wet)
Recommended Oil	K-tech 10W-40
Fuel Capacity	16.5 Liters / 4.3 US gal
Manuals	Service Manual

It could reach a top speed of 101 mph.

Engine

The engine was a cooled Four stroke Parallel twin SOHC. The engine featured a 9.7:1 compression ratio.

Drive

Power was moderated via the Wet clutch.

Chassis

It came with a 90/90-18 front tire and a 110/80-18 rear tire. Stopping was achieved via 2x disc in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Swing arm. The GPz305 Belt Drive was fitted with a 16.5 Liters / 4.3 US gal fuel tank. The bike weighed just 147 kg / 324 lbs. The wheelbase was 1355 mm / 53.3 in long.

Photos

Kawasaki GPz305 Belt Drive

Overview

Kawasaki GPz 305

The Kawasaki Gpz305 was a 306 cc (18.7 cu in) twin cylinder air-cooled SOHC four-stroke motorcycle, produced in 1983 and 1994.  The model evolved from the earlier ER250 model and used an overbored 61 mm × 52.4 mm (2.40 in × 2.06 in) version of the 249 cc engine first produced in 1979. Kawasaki gave this model the "Gpz" nomenclature to add to its expanding air-cooled sports bike range, and was marketed as a sports machine. It originally had chain final drive but in 1983 it had a new Kevlar belt final drive first seen on Kawasaki's American styled cruisers.

It was available with a 250 cc engine as the Kawasaki Scorpion, but came in a different color scheme.

In Cycle World's "Ten Best Bikes of 1983", the Gpz305 won best "Under 460 cc Street" motorcycle, because it was the "best of the lightweight roadsters", combining small bike advantages of low weight and low cost with the fun of a sport bike.[3] In their review, Cycle World praised the bike's quick handling in comparison with heavier, more powerful motorcycles, saying that the while 1,100 and 750 cc (67 and 46 cu in) displacement bikes have a much greater engine power advantage, they typically have 60 in (1,500 mm) wheelbases, giving the 55.2 in (1,400 mm) wheelbase Gpz305 an advantage in the ease that it leans into a turn.[1] They also said that while large engines have the advantage of having a wide power band and do not need frequent shifting during casual riding, the Gpz305's lack of power below 7,000 rpm forces the rider to shift frequently to get the most out of the bike, making it more fun to ride. The review said the Gpz305's air-fuel ratio was excessively lean in order to meet EPA emissions requirements, which meant the bike took 10 mi (16 km) of riding to warm up enough to run smoothly without using the choke, and that the bike benefited greatly from re-jetting the carburetor, without losing fuel economy in the process. Source Wikapidia

Make Model	Kawasaki GPZ 305
Year	1983 -
Engine Type	Four stroke Parallel twin SOHC
Displacement	306 cc / 18.7 cu-in
Bore X Stroke	61.0 x 52.4 mm
Cooling System
Compression	9.7:1
Lubrication	Forced feed lubrication
Induction	2x 32mm Keihin CVi carburetors
Ignition	Magneto CDI
Starting	Electric
Max Power	19.9 kW / 26.6 hp @ 10000 rpm
Max Torque	25.5 Nm / 18.8 lb·ft @ 8500 rpm
Clutch	Wet clutch
Transmission	6 Speed
Final Drive	Belt
Front Suspension	Telescopic forks
Rear Suspension	Swing arm
Front Brakes	2x disc
Rear Brakes	Drum
Front Tire	90/90-18
Rear Tire	110/80-18
Rake	26,5°
Trail	95 mm / 3.7 in
Wheelbase	1355 mm / 53.3 in
Seat Height	784 mm / 30.8 in
Dry Weight	147 kg / 324 lbs
Wet Weight	160.6 kg / 354 lbs
Fuel Capacity	16.5 Liters / 4.3 US gal
Consumption Average	65 mp/g
Standing ¼ Mile	14.7 sec / 86 mph
Top Speed	101 mph