Yamaha XV 1900 Stratoliner
Yamaha XV 1900 Stratoliner
Air cooled, four stroke, 48° V-Twin cylinder,
SOHC, 4 valves per cylinder.
Bore x Stroke
100 x 118 mm
Twin-bore fuel injection
Electronic control unit (ECU) / electric
73,6 kW 100 hp @ 4.250 rpm
167,8 Nm 17,1 kg-m @ 2.500
5 Speed / belt
41mm Kayaba inverted
telescopic fork, 135mm wheel travel
Link-type, preload and
rebound adjustable single rear shock, 110mm wheel
2x 298 mm discs 4 piston calipers
Single 320 mm disc 1
Sitting atop the Star line, the new Stratoliner combines
precision, performance and craftsmanship.
Pride of ownership comes standard with every Stratoliner. Representing
the pinnacle of the Star cruisers, the Stratoliner takes V-twin performance
and character to a new level. Ready to roll with a quick detach windshield
and backrest, the amazing Stratoliner is destined to set new standards by
which all cruisers will be judged.
All new high-performance, air-cooled, long-stroke, OHV, 4 valves per
cylinder, 48°, V-twin powerplant produces massive torque and class leading
Traditional pushrod valve actuation keeps engine height down for a lower
centre of gravity and ensures more uniform heat dissipation due to absence
of a cam chain case. A lower centre of gravity helps to insure light, easy
Four-valve cylinder head provides optimal breathing efficiency for great
power delivery at all rpms. The two spark plugs per cylinder means faster,
more complete combustion for maximum power output.
New cylinder head design utilizes a pent roof combustion chamber design
and features a oil passage near the exhaust valve seat to improve cooling
and durability. The new heads also feature engine mounting points on each
side of the head for increased chassis rigidity for exceptional handling.
All new, large size valve increase engine horsepower and torque. The new
intake valves are 36mm in diameter (Warrior intakes valves = 34mm) while the
new exhaust valves are 31mm ( Warrior exhaust valves = 28mm).
Specially designed valve train includes new short design intake and
exhaust rocker arms that reduce inertia during high-rpm use.
New, high performance spec twin, crankcase-mounted, high-lift cams ensure
strong torque and class leading acceleration.
All new mechanical centrifugal decompression mechanism located in each of
the exhaust camshafts insures fast, easy starts. This new system is
contained inside the camshafts and reduces weight since no solenoid etc. is
required and complexity.
Hydraulic valve lifters driven by the twin camshafts deliver exceptional
performance and significantly reduce maintenance and tune-up requirements.
All new large-diameter pistons are both durable and lightweight. Yamaha's
exclusive "controlled forged construction" keeps the pistons light for
faster response and to accommodate higher-rpm performance with reduced
vibration and less reciprocating mass. The new pistons feature an Alumite
coating to reduce friction. The overall piston height has been reduced by
2mm compared to the Warrior.
The dry sump oil lubrication system has been optimized to ensure maximum
lubrication and cooling . Special oil nozzles direct oil at the bottom of
the pistons to cool and lubricate them.
All new "dual chamber" crankcase design. The front section is for the
crank assembly while the rear is for the transmission. Two all new, 3-rotor
high capacity oil pumps optimizes oil flow in each of the two main sections
of the engine.
New, huge 100mm bore ceramic composite-plated cylinders provide uniform
heat dissipation, reduce weight, reduce friction and increase cylinder
Cooling fin thickness and depth is optimized for maximum heat
dissipation, thereby eliminating the need for liquid cooling, while
maintaining that traditional, stylish air-cooled engine appearance.
New optimized "damper-less" crankshaft allows the rider to feel the
directness of the engine's power. For each rotation of the rear wheel, in
5th gear, the crank spins 3.14 times providing an outstanding rear wheel
driving force feeling to the rider.
All new long design connecting rods combine with the new pistons to
increase the engine displacement to 1853cc.
All new, compact design dual balancers reduce vibration for exceptional
rider and passenger comfort. The balancers are positioned on either end of
the crankshaft to reduce the crankcase length.
New 3-axis crankcase layout means the crankshaft, main axle and drive
shaft are specially arranged to minimize the size of the engine cases.
All new 43mm, twin-bore, downdraft throttle body fuel injection (FI) with
throttle position sensor (TPS) ensures great throttle response and maximum
power throughout the rev range. This new system is a "closed loop" system
since it utilizes an oxygen sensor in the exhaust to monitor the
concentration of oxygen and adjust the EFI system if necessary. The benefits
of fuel injection include chokeless operation, increased fuel economy,
instant throttle response and reduced emissions.
The 12-hole, 2-directional Mikuni fuel injectors produce a wide spray
pattern for complete cylinder filling. This special spray pattern combined
with the dual spark plug head ensures complete combustion for maximum power.
A new Idle speed Control (ISC) has been adopted to ensure stable idling
High capacity electronic fuel pump is located in the sub tank under the
State-of-the-art Electronic Control Unit (ECU) ensures precisely metered
fuel delivery and optimal ignition spark control using 3D transistorized
coil ignition mapping for each cylinder.
All new 3.5 liter dual inlet air filter box is located under the tank.
There are intake ducts at the front and rear of the air box for maximum
breathing efficiency. This new design not only maximizes air flow but also
reduces weight. A viscous paper type air filter is used. The side mounted
air filter common on the Road star series has been eliminated giving cleaner
look at the engine's cylinders on the right side.
Air Induction System (AIS) injects fresh oxygen at the exhaust port to
insure complete combustion thereby reducing harmful exhaust emissions (HC &
CO) while a special air cut valve reduces backfiring when decelerating or
coasting off throttle.
High-performance, 2-into-1-exhaust system features large size header
pipes for maximum flow. The single muffler contains a 3-way honey comb
matrix catalyizer to reduce harmful exhaust emissions. The stylish new
muffler helps to boost torque and horsepower while producing a throaty,
The exhaust system also features a lightweight titanium EXUP exhaust
power valve most commonly found on high performance sport bikes. The EXUP
system not only provides crisp throttle response and eliminates 'flat spots"
but also improves acceleration and reduces fuel consumption and harmful
Dry sump lubrication system means a more compact engine design since the
oil tank is not part of the engine, which lowers the centre of gravity for
great handling and a light feel. A handy, spin-on oil filter means fast,
easy oil changes.
All new frame mounted oil cooler is a first on a Yamaha cruiser. The
cooler maintains consistent oil temperatures for optimum cooling and
lubrication of this massive V-twin powerplant.
Smooth-shifting, 5-speed transmission features new gear ratios compared
to the Warrior. The primary ratio is 1.412 (Warrior = 1.532) while the
secondary ratio is 2.785 (Warrior = 2.393).Newly designed transfer case
eliminates the middle housing for reduced weight and complexity.
All new, 2-piece heel-and-toe shifter adds versatility and enhances the
overall cruising experience. The 2-piece design allows the rider to
individually adjust front and rear portions to suit foot size or remove the
rear section if not desired.
Heavy duty 10 plate clutch is designed compliment engine power
characteristics. This new clutch is operated by an all new hydraulic master
cylinder instead of a cable. The hydraulic clutch design is low maintenance,
self adjusting and very stylish.
New design, low-maintenance belt drive system not only significantly
reduce maintenance but is also clean and quiet. A belt drive system uses
less power than a shaft drive and reduces unsprung weight for great rear
All new aluminum, die cast, double-cradle frame reduces weight, while
balancing strength and rigidity. The critical head pipe area features box
type construction for additional strength. The frame not provides excellent
handling characteristics but also compliments the beautiful flowing lines of
the rest of the chassis and bodywork. The engine is rigidly mounted in the
All new , lightweight C.F. die cast aluminum swingarm offers superb
rigidity and ensures excellent stability and handling. The C.F. die casting
process allows for beautiful shapes that are both strong and light. This new
swingarm is a fashion statement in aluminum and compliments the rest of the
Stratoliner's eye catching styling.
All new, rigid 46mm front fork offers 130mm (5.1") of wheel travel for
exceptionally stable handling and great ride comfort. The fork features new
"slash cut" large diameter chromed fork shrouds to enhance the "neo-
Beefy, cast aluminum, top and bottom triple clamps help increase fork
rigidity and reduce weight.
Link rear suspension features a spring preload adjustable single rear
shock delivering outstanding ride comfort and precise handling. The shock is
horizontally positioned under the engine for a lower center of gravity and
is hidden to provide that classic "hardtail" look. Rear wheel travel is
Powerful dual 298mm front discs are squeezed by ultra rigid, 4-piston,
monoblock calipers with fully floating rotors to provide sport-bike spec
stopping power. Providing exceptional stopping power, these brakes also
provide great lever feel and feedback.
Huge 320mm rear disc is squeezed by a single piston caliper mounted below
the swingarm for a lower center of gravity and that customized "hidden
All new, lightweight 12 spoke cast aluminum mag wheels reduce weight and
enhance handling and styling. The front wheel is MT 4.00x18 while the rear
wheel is a MT 5.50x17. Both are fitted with tubeless radial tires that
provide excellent traction and reduced rolling resistance.
Two-piece seat design features a wide, flat profile for excellent rider
comfort. The passenger seat features a small lip at the rear of the seat
providing a secure feeling for the passenger.
All new, 51w /55w high efficiency Irradiation headlight. This is a 2 bulb
design, one for low beam and one for high beam. The unique headlight body
compliments the "neo-streamline" styling.
Newly design steel fenders front and rear can be easily customized or
painted to suit personal preferences. The front fender features a classic
All new, flangeless teardrop style fuel tank offers 14 liters of
capacity. This is the first flangeless tank used on a Yamaha cruiser. There
are no welds visible, providing that custom look. The total fuel capacity is
17 liters thanks to a 3 liter sub tank located low in the frame below the
seat. A high pressure electric fuel pump with quick connect fittings provide
fuel to the EFI system.
All new, large 1.25" diameter handlebars. All electrical wires are hidden
inside the handle bars for that clean custom look. New handle bar switches
match the overall styling image. Selected meter functions can be controlled
by buttons on the back of LHS switch.
All new fuel tank mounted instrument panel. This new panel has the
classic "grand father" clock image. Just below the large analogue speedo is
an analogue tach and fuel gauge. Other functions include digital odometer,
dual tripmeters, fuel reserve trip counter and clock. Background
illumination can be adjusted to suit personal preferences.
Super quick detachable windshield can be removed without tools. The new
Stratoliner is a true "convertible" similar to the Royal Star Tour Deluxe.
The windshield locks into place with the ignition key for added security.
Super quick detachable chromed passenger backrest can be removed in
seconds without tools. The backrest locks into place with the ignition key
for added security.
All new, beautifully styled, semi hard re-enforced leather saddlebags
provide ample storage for causal weekend tours.
All new teardrop shaped rider floorboards with floating rubber inserts
that reduce vibration.
Extra wide, newly designed brake and clutch levers provide that quality
feel and look.
Industry-leading, Star Family fit and finish creates a machine as stunning
as it is powerful.
All new, highly visible, clear look LED taillight
All new turn signal design with clear lenses
Self-canceling turn signals (15 seconds or 150 meters)
Stylish 3D speed lines on the fuel tank
Low-fuel warning light
Low maintenance sealed battery
Fork lock integrated into main ignition switch for extra convenience
Brushed look forks and fork shrouds, handlebar switches, levers, etc.