Yamaha Star Roadliner S

Yamaha Star Roadliner
Manufacturer	Yamaha
Also called	Star Roadliner Midnight, Star Roadliner S
Production	2006 - 07
Engine	Four stroke, pushrod 48° V-Twin, OHV, 2 valves per cylinder
Compression ratio	9.5:1
Ignition	Digital TCI
Transmission	5 Speed
Suspension	Front: 46mm telescopic forks, Rear: Single shock, link-type,
Brakes	Front: 2x 298mm discs 4 piston calipers Rear: Single 320mm disc 4 piston caliper
Front Tire	130/70 -18
Rear Tire	190/60 -17
Wheelbase	1715 mm / 67.5 in
Seat Height	735mm / 28.9 in
Weight	340 kg / 748 lbs (dry),
Recommended Oil	Yamalube 10w-40
Fuel Capacity	17 Liters / 4.4 us gal
Manuals	Service Manual

Engine

The engine was a Air cooled cooled Four stroke, pushrod 48° V-Twin, OHV, 2 valves per cylinder. The engine featured a 9.5:1 compression ratio.

Drive

Power was moderated via the Wet, multiple disc.

Chassis

It came with a 130/70 -18 front tire and a 190/60 -17 rear tire. Stopping was achieved via 2x 298mm discs 4 piston calipers in the front and a Single 320mm disc 4 piston caliper in the rear. The front suspension was a 46mm telescopic forks, while the rear was equipped with a Single shock, link-type,. The Star Roadliner S was fitted with a 17 Liters / 4.4 us gal fuel tank. The bike weighed just 340 kg / 748 lbs. The wheelbase was 1715 mm / 67.5 in long.

Photos

Overview

Yamaha XV 1900 Roadliner S

The  Roadliner S offers a new level of performance, excitement and pride of ownership. You are looking at the latest generation of Star cruisers. A culmination of all the knowledge we have gained since the introduction of the Star series. The stunningly beautiful Roadliner S is more than just a pretty face. All new 1853cc V-Twin power, fuel injection, aluminum frame and swingarm, are all skillfully crafted to provide an incredible feeling of sensual performance and excitement. 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 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 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 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 FI 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 performance. 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 a 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 harmful emissions. 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. Chassis/Suspension 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 Roadliner'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, polished 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 litersof 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. ???? 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 Many, richly chrome accents including: forks, handlebar switches, levers, engine covers etc.

Make Model	Yamaha XV 1900 Roadliner S
Year	2006 - 07
Engine Type	Four stroke, pushrod 48° V-Twin, OHV, 2 valves per cylinder
Displacement	1854 cc / 113 cu-in
Bore X Stroke	100 х 118 mm
Cooling System	Air cooled
Compression	9.5:1
Lubrication	Dry sump
Induction	Twin-bore electronic fuel injection, 43mm throttle bodies and throttle position sensor
Ignition	Digital TCI
Starting	Electric
Max Power	98.6 hp / 72.0 kW @ 4250 rpm
Max Torque	166.7 Nm / / 17 kg-m / 123 ft-lb @ 2250 rpm
Clutch	Wet, multiple disc
Transmission	5 Speed
Final Drive	Belt
Front Suspension	46mm telescopic forks,
Front Wheel Travel	134.5 mm / 5.3 in
Rear Suspension	Single shock, link-type,
Rear Wheel Travel	109 mm / 4.3 in
Front Brakes	2x 298mm discs 4 piston calipers
Rear Brakes	Single 320mm disc 4 piston caliper
Front Tire	130/70 -18
Rear Tire	190/60 -17
Rake	31°
Trail	152 mm / 6.0 in
Dimensions	Length 2580mm / 101.6 in Width 1055mm / 41.5 in Height 1105mm / 43.5 in
Wheelbase	1715 mm / 67.5 in
Seat Height	735mm / 28.9 in
Dry Weight	340 kg / 748 lbs
Fuel Capacity	17 Liters / 4.4 us gal