Yamaha Star Raider S / XV 1900 Raider S

You are looking at a special generation of custom cruisers. Check out the incredible attention to detail. From front to back, the Raider S is loaded with "custom" inspired parts. Stretched out fork, fat rear tire, low seat and an aggressive, slammed riding position. The Raider S not only looks good… it offers an incredible riding experience too.

Power
High-performance, 1854cc (113 cubic inch) air-cooled, long-stroke, OHV, 4 valves per cylinder, 48°, V-twin powerplant produces massive torque and class leading acceleration from very low rpms.

Performance
Maximum torque occurs at 2,500 rpm while maximum power occurs at 4,500 rpm, providing exciting acceleration with great pulse and torque feel.

 Style
Chrome highlights include; headlight, turn signals, upper & lower triple clamps, lower fork legs, handlebar clamp and engine covers. Brushed aluminum components include; wheel accents, front calipers, handlebar switches and master cylinders.

Features

• Industry-leading, Star fit & finish
• Numerous custom styled highlights (headlight stays, handlebar holders, rear fender stays, mirrors, footpegs etc.) crate a machine as stunning as it is powerful.
• Auxiliary, under seat 12 volt DC connector provides 36W / 3A of power
• Steering lock
• Helmet holder with cable
• Upper & lower belt guards help prevent debris for entering the system
• Low maintenance sealed battery (battery should be charged during winter storage)

ENGINE
• High-performance, 1854cc (113 cubic inch) air-cooled, long-stroke, OHV, 4 valves per cylinder, 48°, V-twin power plant produces massive torque & class leading acceleration from very low rpms.
• Maximum torque occurs at 2,500 rpm while maximum power occurs at 4,500 rpm, providing exciting acceleration with great pulse & torque feel.
• OHV, 4-valve "pent roof" cylinder heads.
- compact pent roof combustion chambers with 9.5:1 compression ratio
- 4-valve design optimizes breathing efficiency & overall engine performance at all rpms
- 36 mm intake & 31 mm exhaust valves
- two spark plugs per cylinder means faster, more complete combustion for maximum power
- special oil passage near exhaust valve seat improves cooling & durability
- 25,000 km valve adjustment interval
• Traditional pushrod valve actuation with special short design rocker arms.
- ensures more uniform heat dissipation due to absence of cam chain case
- reduces engine height for a lower centre of gravity for light easy handling
- short design intake & exhaust rocker arms reduce inertia during higher-rpm use.
• Twin, high lift, crankcase-mounted, high-lift cams with hydraulic valve lifters.
- strong torque & class leading acceleration
- hydraulic valve lifters reduce maintenance & tune-up requirements
• Mechanical centrifugal decompression mechanism
- located in each of the exhaust camshafts
- ensures fast, easy starts
• Single pin style crankshaft
- design accentuates V-twin engine character, pulse feel & sound
- optimized flywheel mass & "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.
• Dual engine counter balancers reduce engine vibration for excellent rider & passenger comfort
• Dry sump oil lubrication system
- optimized to ensure maximum lubrication & cooling
- oil jet nozzles direct oil at underside of the pistons to reduce piston & rod temperatures
- dry sump system reduces engine height (no deep oil pan), which lowers the centre of gravity for great handling and a light feel
• Special "dual chamber" crankcase design.
- front section for the crank assembly
- rear section for the transmission
- two, 3-rotor high capacity oil pumps optimizes oil flow in each of the two main sections of the engine.
• Huge 100mm "ceramic composite-plated" cylinder bores.
- excellent heat dissipation for consistent power delivery
- ceramic coating enhances the thin film of oil between the cylinder & piston, reducing friction & increasing power
- extended cylinder service life
• "Controlled forged construction" aluminum pistons with Alumite coating.
- less reciprocating mass for fast engine response
- reduced mechanical vibration
- Alumite coating reduces friction
• Cylinder cooling fin thickness & depth is optimized.
- optimum heat dissipation (eliminating the need for liquid cooling)
- traditional, stylish air-cooled engine appearance
- each cooling fin is specially polished to create "shining' highlights
• 43mm, "closed loop", dual bore, throttle body fuel injection system.
- system uses Throttle Position Sensor (TPS) to help optimize intake air flow & power
- 12 hole injectors optimize fuel atomization & feature a dual spray pattern for more complete combustion chamber filling
- excellent throttle response
- "closed loop system" uses dual oxygen sensors to "sniff" spent exhaust & automatically adjust the fuel / air ratio for reduced emissions
- oxygen sensors are located before the mufflers, so the use of aftermarket "slip-on" mufflers will not affect the closed loop system
- fuel injection benefits include choke-free starting, steady idling during warm up, excellent fuel economy & reduced emissions
• Smooth-shifting, 5-speed transmission.
- optimized gear ratios match engine power for strong acceleration
- 5th gear is an overdrive gear for reduced engine rpms at highway speeds
• Hydraulic "assist and slipper" clutch.
- heavy duty hydraulically operated wet clutch
- reduced clutch lever pull / effort at the handlebar by 20% (assist function)
- back torque limiter a.k.a "slipper clutch" reduce the effects of engine braking when downshifting or decelerating
- low maintenance, self-adjusting hydraulic master cylinder provides smooth operation
• Low-maintenance belt drive system.
- belt is embedded with carbon fibre cords for incredible strength & durability
• Low maintenance belt drive final drive.
- cleaner & quieter than chain drive & no messy chain splatter
- significantly reduces maintenance Vs a chain... no regular adjustments or lubrication required
- belt drive system simplifies customization
- belt is embedded with carbon fibre cords for incredible strength & durability
• State-of-the-art Electronic Control Unit (ECU)
- ensures precisely metered fuel delivery
- optimal ignition spark control using 3D mapping for each cylinder
• Maintenance-free transistor controlled ignition (TCI).
- produces a strong spark for fast starts
- provides precise ignition timing / mapping for optimum engine performance at all rpms
• 3.5 litre dual inlet air box.
- front & rear inlets for maximum breathing efficiency
- viscous paper type air filter is used.
• High-performance, 2-into-1-into-2 exhaust system.
- large diameter header pipes for maximum flow
- dual mufflers helps to boost torque & horsepower
- heat shields protect rider & passenger form hot components
- dual 3-way honeycomb catalyzers reduce harmful exhaust emissions
• Lightweight titanium EXUP exhaust power valve.
- system helps prevent the "blow back" phenomenon caused by "valve overlap"
- EXUP system eliminates "flat spots" in the power band
- improves acceleration, reduces fuel consumption & reduces emissions
• Easy access, spin-on type oil filter.
•Air Injection System (AIS) injects fresh air into exhaust ports to fully burn any unburnt fuel, reducing exhaust emissions.
•Special "air cut valve" reduces backfiring when decelerating or coasting off throttle.

CHASSIS
• High tech, cast aluminum double-cradle frame.
- reduces weight, while balancing strength & rigidity for excellent handling
- engine is a stressed member of the frame for added rigidity
- critical head pipe area features box type construction for additional strength
- frame not only provides excellent handling characteristics but also compliments the beautiful flowing lines of the entire machine
- open area behind & below steering head helps to enhance that "chopper inspired" styling
- main front wire harness is hidden in the head pipe for a clean appearance

Important Note: Raked out front fork with lots of trail generally provides good straight line stability but often result in heavy steering. Engineers at Yamaha will not sacrifice handling for styling, so they have developed a 6 degree "yoke offset" angle combined with the 34 degree steering head for a total fork angle of 40 degrees. The Raider provides light "athletic handling and easy steering" not commonly found on a custom styled bike with significant rake.
• Key chassis geometry: 6 degree yoke offset, 34 degree caster angle, 102mm of trail, 1800 mm (70.9") wheelbase
• Lightweight C.F. die cast aluminum swingarm.
- optimized rigidity balance for excellent stability & handling
- great rear wheel traction & control
- C.F. die casting process allows for beautiful shapes that are both strong & light
• 46mm KYB front fork offers 130mm (5.1") of wheel travel.
- exceptionally stable handling & great ride comfort
- inner fork tubes are protected by chip guards
• Lightweight aluminum triple clamps.
- lower triple clamp with a 6 degree yoke offset for excellent handling qualities
- raked out fork provides custom chopper inspired styling
• Adjustable link, single shock rear suspension with 90 mm (3.5") of rear wheel travel.
- single shock suspension not only reduces weight, but delivers outstanding ride comfort
- KYB shock is horizontally positioned under the engine lowering the centre of gravity and centralizing mass for agile handling with a light feel
- shock is hidden to provide that classic "hardtail" look
- adjustments include: 9 mm (0.35") of threaded spring preload spring
• Dual 298mm floating front discs are squeezed by rigid, 4-piston, monoblock calipers.
- provide sport-bike spec stopping power
- great lever feel & feedback.
• Beautiful custom looking 5-spoke cast aluminum wheels
- 21" front wheel provides a special styling highlight
- front rim size is 3.50 x 21, rear rim is a wide 7.50 x 18
- rear wheel carries a 210 series tire... the widest rear tire ever installed on a Yamaha
• Large 310mm rear disc is squeezed by a single piston caliper.
- caliper is mounted below the swingarm for a lower center of gravity & that "hidden look"
• Beautiful custom looking 5-spoke cast aluminum wheels
- 21" front wheel provides a special styling highlight
- front rim size is 3.50 x 21, rear rim is a wide 7.50 x 18
- rear wheel carries a 210 series tire... the widest rear tire ever installed on a Yamaha
• Two-piece seat design
- features a deep notch in the rider seat to give that chopper inspired riding position... more sitting in than sitting on
- rear portion of the rider's seat also provides some back support for the rider
• Front & rear steel fenders.
- easily customized or painted to suit personal preferences
- custom styled one piece rear fender mounts
• 12 litre flangeless style main fuel tank... total fuel capacity is 16 litres.
- no visible welds or seams for that clean, custom look
- total fuel capacity is 16 litres thanks to a 4 litre sub tank located low in the frame below the seat
- high capacity electric fuel pump with quick connect fittings located in sub tank
- reserve portion of the tank is 3.2L (low fuel light illuminates)
•Large diameter 1.25" handlebars.
- all electrical wires are hidden inside the handlebars for that clean custom look
- selected meter functions can be controlled by buttons on the back of LHS switch gear.
• Classic fuel tank mounted instrument panel.
- comprehensive instrumentation includes; analogue speedo & fuel gauge with low fuel warning light
- digital functions include; odometer, dual trip meters, fuel reserve trip meter (counts kilometers since low fuel light illuminated) & clock
- background illumination is adjustable
- meter re-set buttons are located on the instrument panel while the select switch is located on the left hand switch gear so you can tab through the various functions without removing your hands from the handlebars.
• Extra wide, brake and clutch levers provide that quality feel & look.
• Bright 60/55w halogen headlight.
• Brilliant LED rear tail light & compact LED turn signals.