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Comparing the technical specifications of Kawasaki Vulcan VN900 Classic and Yamaha Fazer FZ-1 is a proper way to figure out which one of these motorcycles matches better your individual preferences and expectations. The decision on your next motorcycle purchase should be all based on your personal preferences for speed, handling and comfort. The long personal list of favourite motorcycle models can be narrowed to just a few ones after comparing their pictures and technical specifications. Then the most appropriate judgement can be made when each of them is taken for a real ride.

Kawasaki-Vulcan VN900 Classic   vs   Yamaha-Fazer FZ-1
Picture of Kawasaki - Vulcan VN900 ClassicPicture of Kawasaki - Vulcan VN900 Classic
Kawasaki manufacturer Yamaha
Vulcan VN900 Classic bike name Fazer FZ-1
Custom bike mootorcycle type Sport touring
2006-2007 year since 2006
246 / 100 / 106 cm overall size L/W/H(cm)206 / 65.5 / 112.5 cm
903 cc engine displacement (cc)998 cc
Fuel injection with two Keihin throttle bodies 34mm diameter fuel supply method Fuel Injection
9.5:1 compression ratio 11.5:1
88x74.2 mm bore and stroke 77x53.6 mm
135mm (5.3 inches) ground clearance 135mm (5.3 inches)
3.9litres (4.1 quarts) engine oil capacity3.7litres (3.9 quarts)
18.0 litres (4.8 gallons) fuel tank capacity 20.0 litres (5.3 gallons)
166 km/h (103 mph) top speed246 km/h (153 mph)
50 hppeak horsepower 150 hp
78 nm (57.5 ft lbs)max torque 106 nm (78.2 ft lbs)
263 kg (580 lbs) dry weight204 kg (450 lbs)
281 kg (619 lbs) curb weight (wet weight) 220 kg (485 lbs)
41mm telescopic fork with 7-position preload and 150mm wheel travel front suspension telescopic forks with 130mm travel
Uni-trak single shock with 100mm wheel travel rear suspension link type swingarm with 130mm travel
130/90-16 front tyre size 120/70-ZR17
180/70-15 rear tyre size 190/50-ZR17
5-speed transmission type 6-speed
digital ignition and electric starting system ignition / starting Electric
single 300mm disc with double piston caliper front brakes Two discs x 320mm
one disc with 270mm diameter and 2-piston caliperrear brakes One disc x 245mm
Belt drivefinal drive typeChain drive
Liquid coolingcooling typeLiquid cooling
5.90 l/100km (39.9 mpg)fuel economy (consumption)6.25 l/100km (37.6 mpg)
technical specifications of Kawasaki Vulcan VN900 Classicsee data separatelytechnical specifications of Yamaha Fazer FZ-1

The bigger engine size of Yamaha Fazer FZ-1 in comparison to Kawasaki Vulcan VN900 Classic doesn't mean that it is more powerful or better performing bike. The second bike has the advantage of greater compression ratio of 11.5:1 than the other one. This ratio is the relation of the volume in the cylinder when the piston is at the bottom of the stroke to the volume in the cylinder when the gas is compressed and the piston is at the top of the stroke. When the mixture of air and fuel in the combustion chamber has bigger pressure (higher compression ratio) when it is ignited then it burns more effectively and therefore these bikes tend to have better fuel economy (comparing engines with equal displacement).
The bike with a better fuel economy is the Kawasaki Vulcan VN900 Classic which can travel 39.9 miles with one gallon of fuel. Yamaha Fazer FZ-1 on the contrary can travel 37.6 miles with a gallon. Measuring the fuel economy in mpg shows how many miles of ride are covered by a gallon of fuel and measuring in l/100km shows the average fuel consumption in litters for every 100 kilometers riding.
front and rear tires Motorcycle tyres come in variety of sizes and these sizes are strongly specified for each model. The right choice also depends on your style of riding, whether you are speeding and riding agressively. You need to know what the code designators printed on the tire mean in order to be able to find the proper size for your bike. Firstly the code shows the width of the tire measured in millimeters. The profile of the tire is revealed by the second number. How many inches is the diameter of the rim - that is what the tird number reveals. Buying motorcycle tires online can save you precious time and cash.
The ride height of 135mm (ground clearance) is equal for both motorcycles. The ride height is the other name of the parameter ground clearance which refers to the measure from the tyre base to the underside of the cassis of a motorcycle. That, in other words, is the smallest distance between any mechanical body part of the motorcycle and the surface of the road.
The top speed of 246km/h makes Yamaha Fazer FZ-1 the faster of the two motorcycles. The other one (Kawasaki Vulcan VN900 Classic) can achieve a maximum speed of 166km/h according to its technical specifications. However sources may vary as to whether these top speed parameters are precise or only approximate.Liquid cooled motorcycle engine
Kawasaki Vulcan VN900 Classic is liquid cooled and so is the Yamaha Fazer FZ-1. Compared to the air cooled motorcycles the liquid cooled ones have a very narrow range of working temperatures. Keeping the operating temperature at a very narrow range allows many engine components to be optimised for these temperatures. The liquid (coolant) is forced by the water pump to circulate from the radiator to the engine and back. A thermostat turns on an electric fan to draw more air over the radiator in case the motorcycle slows down and the air flowing through the radiator is not enough to cool the liquid inside it to the desired level. However the water pump, the thermostat, the radiator and all the linking gear makes it a bit more complex.
As per their technical specifications both motorcycles have different types of final drive implementation.
chain final drive Chain final drive is used with the Yamaha Fazer FZ-1. One of the most economical way to drive horsepower from the engine to the rear wheel of the motorcycle is achieved with the chain drive and therefore it is still the most used among the three options by bike manufacturers. Many bikers may complain of the need of constant care though. Since the chain is exposed to dust, sun and rain it needs to be periodically cleaned and properly lubricated.The Kawasaki Vulcan VN900 Classic is driven by a belt.
Compression ratio - this parameter refers to how the cylinder's space changes from when the piston is down at its lowest point to when the piston is up at its highest point in the stroke. The compressio ratio of Yamaha Fazer FZ-1 is 11.5:1 and it is 9.5:1 for Kawasaki Vulcan VN900 Classic according to the motorcycles technical data above. Premium fuel might be recommended for some motorcycles with high levels of compression ration in order to avoid engine knocking. If you got a motorcycle with a greater compression ratio for its specific engine it is getting better fuel economy than it would if it had a lesser compression ratio.
Motorcycle oil is one of the most important components that keeps the engine running smoothly. Synthetic engine oils are considered the most technically advanced one and are more expensive than the mineral oils which come at lower price. The engine oil is to be changed on every 3700 miles (or 6000 kilometers) as a general rule. More kilometers between two oil changes is accepted when synthetic oil is used. Depending on the oil filter it needs to be replaced on each or every two oil changes. Both motorcycles have different oil capacity according to the technical specs - 3.9 litres for Kawasaki Vulcan VN900 Classic and 3.7 litres for Yamaha Fazer FZ-1. The oil capacity here is just to give you a rough idea of how much oil you need on an oil change. The exact amount of oil you pour in is to be judged by the current level shown on the oil level sight window or dipstick.

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