Yamaha Diversion
Encyclopedia
Yamaha Diversion motorcycle
s are a series of all-round touring motorcycles descended from Yamaha
's earlier XJ series
. Early Diversion models were fitted with a four-stroke air-cooled
8-valve inline-four
engine. In 2009 the marque was retained for a new range with 16-valve liquid-cooled engines.
n and Australian markets. The bike has a small top fairing
although a lower fairing is available as an accessory. The XJ600S is a descendant of the Yamaha XJ600
models manufactured between 1984 and 1991. It is fitted with a 598cc, air-cooled 8-valve inline-four engine giving 61 hp
(45kW
) / 55 Nm
output. The engine from the original XJ600 model was tuned towards improved low- and midrange power, sacrificing some peak power.
600cc Diversion models were manufactured from 1992 to 2003. US Seca IIs were manufactured from 1992 to 1998. As the Diversion/Seca II design is based on an earlier, well-matured model, changes made to the bike during these years were rather subtle, mostly concerning improvements in fairing: a second front-brake disc and small oil cooler appeared on the 1998 model along with improvements to the carburettors.
The Diversion features a more standard riding position than most 600cc sport bikes, making it usable for commuting
. It remained in production for quite a long time, perhaps due to its all-round affordability including low price, modest fuel consumption, longevity and reliability.
is different from the XJ600S, as it turns with the handlebars
. This model was not sold in North America.
model. The XJ900S and the XJ900GT are both the same basic motorcycle except the GT
,typically for touring motorcycles, has a large fairing
and two Krauser K2 pannier
s while the XJ900S has a small top fairing like the XJ600S. On the dashboard
(wider than that of the 600cc models) there are some extra gauges such as a fuel gauge
. It is a sports/touring machine fitted with a 892cc, air-cooled
8-valve inline-four engine giving 89 hp
/ 85 Nm
output. The XJ900S/GT has a driveshaft
while the 600cc models are chain drive
n. The poor front suspension springs can be replaced with progressive ones.
The XJ900S/GT is known as Diversion 900 on the European market. In the United States the bike appeared as the 1983 Seca XJ900RK.
all over the world. Such models are built by Yamaha
to the specifications of individual police departments. Generally the XJ900S is chosen for police use but the XJ600S has also been used. Police spec. Diversions are commonly referred to as XJ900P (P for Police) although Yamaha
refers to them by their usual model designation (XJ900S or XJ600S) as they do not constitute a separate model.
Motorcycle
A motorcycle is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most...
s are a series of all-round touring motorcycles descended from Yamaha
Yamaha Motor Company
, is a Japanese motorized vehicle-producing company. Yamaha Motor is part of Yamaha Corporation and its headquarter is located in Iwata, Shizuoka. Along with expanding Yamaha Corporation into the world's biggest piano maker, then Yamaha CEO Genichi Kawakami took Yamaha into the field of motorized...
's earlier XJ series
Yamaha XJ600
The Yamaha XJ600 is a motorcycle manufactured by Yamaha. It is a relatively light motorcycle with top half fairing and around . The XJ600 was built from 1984 until 1991, when it was replaced with the Yamaha Diversion/Seca II. In North America, the bike was sold as the FJ600. The 1984 Yamaha...
. Early Diversion models were fitted with a four-stroke air-cooled
Engine cooling
Internal combustion engine cooling refers to the cooling of an internal combustion engine, typically using either air or a liquid.- Overview :...
8-valve inline-four
Straight-4
The inline-four engine or straight-four engine is an internal combustion engine with all four cylinders mounted in a straight line, or plane along the crankcase. The single bank of cylinders may be oriented in either a vertical or an inclined plane with all the pistons driving a common crankshaft....
engine. In 2009 the marque was retained for a new range with 16-valve liquid-cooled engines.
Diversion models
Before the introduction of the 2009 models the series consisted of four main models; the XJ600S, XJ600N, XJ900S and XJ900GT.The XJ600S Diversion/Seca II
The XJ600S is known as the Diversion in most parts of the world but as the Seca II in the North AmericaNorth America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...
n and Australian markets. The bike has a small top fairing
Motorcycle fairing
A motorcycle fairing is a shell placed over the frame of some motorcycles, especially racing motorcycles and sport bikes, with the primary purpose to reduce air drag. The secondary functions are the protection of the rider from airborne hazards and wind-induced hypothermia and of the engine...
although a lower fairing is available as an accessory. The XJ600S is a descendant of the Yamaha XJ600
Yamaha XJ600
The Yamaha XJ600 is a motorcycle manufactured by Yamaha. It is a relatively light motorcycle with top half fairing and around . The XJ600 was built from 1984 until 1991, when it was replaced with the Yamaha Diversion/Seca II. In North America, the bike was sold as the FJ600. The 1984 Yamaha...
models manufactured between 1984 and 1991. It is fitted with a 598cc, air-cooled 8-valve inline-four engine giving 61 hp
Horsepower
Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...
(45kW
Watt
The watt is a derived unit of power in the International System of Units , named after the Scottish engineer James Watt . The unit, defined as one joule per second, measures the rate of energy conversion.-Definition:...
) / 55 Nm
Torque
Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....
output. The engine from the original XJ600 model was tuned towards improved low- and midrange power, sacrificing some peak power.
600cc Diversion models were manufactured from 1992 to 2003. US Seca IIs were manufactured from 1992 to 1998. As the Diversion/Seca II design is based on an earlier, well-matured model, changes made to the bike during these years were rather subtle, mostly concerning improvements in fairing: a second front-brake disc and small oil cooler appeared on the 1998 model along with improvements to the carburettors.
The Diversion features a more standard riding position than most 600cc sport bikes, making it usable for commuting
Commuting
Commuting is regular travel between one's place of residence and place of work or full time study. It sometimes refers to any regular or often repeated traveling between locations when not work related.- History :...
. It remained in production for quite a long time, perhaps due to its all-round affordability including low price, modest fuel consumption, longevity and reliability.
The XJ600N
The XJ600N is almost identical to the XJ600S except that it is a naked bike: the dashboardDashboard
A dashboard is a control panel placed in front of the driver of an automobile, housing instrumentation and controls for operation of the vehicle....
is different from the XJ600S, as it turns with the handlebars
Motorcycle handlebar
Motorcycle handlebar refers to the steering mechanism for motorcycles. Handlebars often support part of the rider's weight, and provide a mounting place for controls such as brake, throttle, clutch, horn, light switch, and rear view mirrors....
. This model was not sold in North America.
The XJ900S/XJ900GT
The XJ900 is a descendant of the earlier Yamaha XJ900Yamaha XJ900
The Yamaha XJ900 was born out of the original Yamaha XJ model motorcycle, the XJ 650, which was the foundation for the whole XJ series.In its original incarnation launched in 1983, the XJ900 had an air-cooled, double overhead camshaft, 853 cc 4-stroke, 4-cylinder, 8-valve engine.Originally fitted...
model. The XJ900S and the XJ900GT are both the same basic motorcycle except the GT
Grand tourer
A grand tourer is a high-performance luxury automobile designed for long-distance driving. The most common format is a two-door coupé with either a two-seat or a 2+2 arrangement....
,typically for touring motorcycles, has a large fairing
Motorcycle fairing
A motorcycle fairing is a shell placed over the frame of some motorcycles, especially racing motorcycles and sport bikes, with the primary purpose to reduce air drag. The secondary functions are the protection of the rider from airborne hazards and wind-induced hypothermia and of the engine...
and two Krauser K2 pannier
Pannier
A pannier is a basket, bag, box, or similar container, carried in pairs either slung over the back of a beast of burden, or attached to the sides of a bicycle or motorcycle. The term derives from the Old French, from Classical Latin, word for bread basket....
s while the XJ900S has a small top fairing like the XJ600S. On the dashboard
Dashboard
A dashboard is a control panel placed in front of the driver of an automobile, housing instrumentation and controls for operation of the vehicle....
(wider than that of the 600cc models) there are some extra gauges such as a fuel gauge
Fuel gauge
A fuel gauge is an instrument used to indicate the level of fuel contained in a tank. Commonly used in cars, these may also be used for any tank including underground storage tanks.As used in cars, the gauge consists of two parts:...
. It is a sports/touring machine fitted with a 892cc, air-cooled
Air-cooled engine
Air-cooled engines rely on the circulation of air directly over hot parts of the engine to cool them.-Introduction:Most modern internal combustion engines are cooled by a closed circuit carrying liquid coolant through channels in the engine block and cylinder head, where the coolant absorbs heat,...
8-valve inline-four engine giving 89 hp
Horsepower
Horsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...
/ 85 Nm
Torque
Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....
output. The XJ900S/GT has a driveshaft
Driveshaft
A drive shaft, driveshaft, driving shaft, propeller shaft, or Cardan shaft is a mechanical component for transmitting torque and rotation, usually used to connect other components of a drive train that cannot be connected directly because of distance or the need to allow for relative movement...
while the 600cc models are chain drive
Chain drive
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle, particularly bicycles and motorcycles...
n. The poor front suspension springs can be replaced with progressive ones.
The XJ900S/GT is known as Diversion 900 on the European market. In the United States the bike appeared as the 1983 Seca XJ900RK.
Police versions
The Yamaha Diversion has been used as a police motorcyclePolice motorcycle
A police motorcycle is a motorcycle used by various police forces and departments. They may be custom designed to meet the requirements unique of a particular use. A police motorcycle is often called a "motor" by police officers in the United States...
all over the world. Such models are built by Yamaha
Yamaha Motor Company
, is a Japanese motorized vehicle-producing company. Yamaha Motor is part of Yamaha Corporation and its headquarter is located in Iwata, Shizuoka. Along with expanding Yamaha Corporation into the world's biggest piano maker, then Yamaha CEO Genichi Kawakami took Yamaha into the field of motorized...
to the specifications of individual police departments. Generally the XJ900S is chosen for police use but the XJ600S has also been used. Police spec. Diversions are commonly referred to as XJ900P (P for Police) although Yamaha
Yamaha Motor Company
, is a Japanese motorized vehicle-producing company. Yamaha Motor is part of Yamaha Corporation and its headquarter is located in Iwata, Shizuoka. Along with expanding Yamaha Corporation into the world's biggest piano maker, then Yamaha CEO Genichi Kawakami took Yamaha into the field of motorized...
refers to them by their usual model designation (XJ900S or XJ600S) as they do not constitute a separate model.
XJ6 Diversion / XJ6 N / XJ6 Diversion F
In 2009 Yamaha re-launched the Diversion line in the form of the XJ6 Diversion and XJ6 N. The former has a half-fairing while the N version is a naked motorcycle. The engine is a detuned Fazer engine and both versions are offered with optional ABS braking. The new line has upgraded to a liquid-cooled 16 valve 4-stroke forward-inclined parallel 4-cylinder engine developing 78 horsepower (57kW) / 59.7 Nm. Yamaha has kept the engine displacement at 600cc for the new Diversion line.External links
- Yamaha XJ series UK official site
- Yamaha XJ at the Open Directory ProjectOpen Directory ProjectThe Open Directory Project , also known as Dmoz , is a multilingual open content directory of World Wide Web links. It is owned by Netscape but it is constructed and maintained by a community of volunteer editors.ODP uses a hierarchical ontology scheme for organizing site listings...