Yamaha xv 1900 Stratoliner
Yamaha xv 1900 Stratoliner
Air cooled, four stroke, pushrod 48° V-Twin,
OHV, 2 valves per cylinder
Bore x Stroke
100 х 118 mm
Twin-bore electronic fuel injection, 43mm
throttle bodies and throttle position sensor
Digital TCI / electric
75 hp 54.7 kW @ 4750 rpm
111.8 Nm @ 3500 rpm
5 Speed / belt
46mm telescopic forks, 134.5mm wheel travel.
Single shock, link-type, 109mm wheel travel
2x 298mm discs 4 piston calipers
Single 320mm disc 4 piston caliper
735 mm / 28.9 in
344 kg / 756.8 lb
/ 3.7 GAL
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 acceleration.
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 handling.
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
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
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 service life.
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
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
High capacity electronic fuel pump is located in
the sub tank under the seat.
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, V-twin growl.
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
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 suspension performance.
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 new frame.
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- streamliner" styling.
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 110mm (4.3").
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 look".
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 fender stay.
All new, flangeless teardrop style fuel tank
offers 14 Litresof 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 Litresthanks 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
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
All new, highly visible, clear look LED taillight
All new turn signal design with clear lenses
Self-canceling turn signals (15 seconds or 150
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.