Yamaha XSR 900

Engine

• Compact, 847cc, DOHC, 12-valve (4/cyl), liquid-cooled, 42.5 degree inclined, inline-three cylinder engine.

  • engine is tuned to provide plenty of low & mid-range torque

  • strong yet linear throttle response

  • meets or exceeds Europe’s EU-4 emission regulations

• 4-valve, downdraft style combustion chamber

  • excellent torque output… especially in the low to mid rpm range

  • 4-valve design maximizes flow into & out of combustion chambers

  • 31 mm intake & 25 mm exhaust valves

  • stainless steel valves feature an Isonite surface treatment & carburized tips for excellent durability & wear resistance

• Valve adjustment intervals are every 42,000 kms.

• 120 degree CP3… cross plane concept crankshaft.

  • design reduces inertial torque while emphasizing linear torque

  • design has been optimized to achieve strong torque over a broad rpm range

  • fast, linear throttle response

  • engine design allows a whole new level of “rider – machine communication”

• Lightweight “coupling force balancer”.

  • reduces engine vibration for excellent rider comfort

• “Fracture split” connecting rods feature a “nut-less” design.

  • lower end “cap” of the rod is made from the same piece of material as the upper portion; the 2 pieces are “split” apart using a special fracturing process & then machined and re-mated

  • design aids in establishing true big end roundness & greater precision in con rod dimensions for excellent durability despite the higher horsepower loads.

• Lightweight, forged, aluminum short skirt pistons.

  • lightweight design for fast engine response

  • reduces mechanical vibration

  • excellent durability

• Direct ceramic composite plated cylinder uses “liner less” bores.

  • ceramic coating sprayed directly on the aluminum block, eliminating the liners & reducing weight

  • excellent heat dissipation for consistent power delivery

  • coating enhances the thin film of oil between the cylinders & pistons, reducing friction & increasing power

• Offset cylinder design.

  • cylinder is “offset” relative to the crank (toward exhaust side)

  • reduces frictional losses between the pistons & the cylinder walls during the power stroke for improved power output

• One-piece cylinder & upper crankcase assembly.

  • superior engine & chassis rigidity (engine is a stressed member)

  • reduces weight

  

• Lightweight, hollow, high performance camshafts.

  • cam profiles are designed for excellent torque in the low & mid rpm range

• Crankcases feature a “Tri-Axis” layout for the crank, main & drive axles.

  • creates a more compact & shorter engine front to back

  • shorter engine allows for optimum engine placement in the “sweet spot” of frame for desired weight distribution & great handling

• Closed loop, Mikuni, 41 mm, throttle body fuel injection system.

  • system uses throttle position sensor (TPS) & acceleration position sensor (APS)

  • 12 hole injectors

  • injectors spray fuel directly at the intake valve

  • “closed loop system” uses an oxygen sensor to “sniff” spent exhaust & automatically adjust the fuel / air ratio for reduced emissions

  • fuel injection benefits include choke-free starting, steady idling during warm up, excellent fuel economy & reduced emissions

• Yamaha Chip Control Throttle (YCC-T).

  • YCC-T electronically controls throttle valves for outstanding throttle response & controllability

  • YCC-T system provides precise control of intake air volume for a smoother torque curve

  • ECU that controls YCC-T is capable of responding to changes at a speed of 1000th of a second

• Yamaha D-Mode variable throttle control … 3 modes available.

  • enables the rider to adjust the performance characteristics of the engine based on riding preferences or riding conditions

  • “STD” (standard) Mode emphasizes very linear throttle & torque feel of the engine

  • “A” Mode allows the rider to enjoy even sportier engine performance in the low to mid rpms

  • “B” Mode reduces throttle response for riding situations that require softer power characteristics, such as slippery or wet conditions

  • D-Mode button is conveniently located on the RHS handle bar switch gear

• Compact, slipper (back limiter) clutch with assist.

  • slipper clutch reduces the negative effects of engine braking on handling & suspension

  • reduces rear wheel hop/ chatter when decelerating for improved riding performance & smoother corner entries

  • assist function reduces clutch lever effort by up to 20%

  

• Electronic Control Unit (ECU) utilizes a powerful 32-bit processor for fast control of the injection, engine management & ignition processes.

• Air box features unequal internal intake funnel lengths for all 3 cylinders

  • benefit is a wide torque curve & exciting intake sound that accentuates the exhaust note

  • viscous paper type air filter is used

• Compact 6-speed transmission.

  • gear ratios are optimized to accentuate the torque & throttle response of the engine

• Flat design radiator for excellent cooling efficiency.

  • aluminum side covers (left & right sides) adds style to the rad

• Liquid-cooled, oil cooler maintains stable lubricant temperatures for extended engine life.

• Convenient spin-on type oil filter & easy access drain plug for fast oil changes.

• 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

• Stylish, low mounted, 3 into 1 exhaust system.

  • muffler is a triple expansion type with a 3-way honeycomb catalyzer to reduce harmful emissions

  • low mounted design centralizes mass for excellent handling & light weight feeling

• Air Injection System (AIS… not ram air) injects fresh air into exhaust ports to fully burn any unburnt fuel, reducing exhaust emissions.

Chassis

• CF (Controlled Filling) die cast, twin spar, diamond-type, aluminum frame

  • provides an optimized rigidity balance for sporty handling & excellent stability

  • engine is a stressed member of the chassis, allowing a lighter, more compact main frame

  • light, agile handling qualities

• Riding position is one of the most important features of the XSR900 chassis.

  • upright, natural riding position offers a balance between sporty riding & excellent rider comfort

• Key chassis geometry figures include:

  • 1440 mm (56.7″) wheelbase, 25 degrees of rake & 103 mm of trail

  • front to rear weight distribution is 51 / 49%

  • lean angle is approximately 50 degrees, highlighting the sporty nature of the XSR900

  • chassis dimensions & shape are designed to enhance the qualities of the 3 cylinder engine & to centralize mass & lower the centre of gravity

• Detachable, round tube steel rear sub frame.

  • allows easy access to rear suspension components

  • reduces costs in the event of damage

• Externally mounted, C.F. (Controlled Filling) die cast aluminum, truss-type rear swingarm.

  • external design means the swingarm mounts on the outside of the frame spars… not the inside

  • external design keeps unit narrower in the seat – fuel tank junction which influences seat height & makes it easier to touch the ground

  • lightweight design reduces unsprung weight for superior suspension performance

  • excellent rear wheel traction & control

• Adjustable, 41 mm inverted cartridge style fork offers 137 mm (5.4″) of wheel travel.

  • adjustments include; 15 mm of spring preload adjustment & 12-way rebound damping

  • inverted design benefits include: reduced “unsprung” weight & reduced fork flex since the larger diameter tubes are gripped in the triple clamps

  • adjustable design allows the rider to tailor suspension settings to match rider weight, load, road conditions & riding style to maximize suspension performance & handling

• Lightweight, aluminum upper & lower triple clamps.

• Adjustable link-type Monocross rear suspension with 130 mm (5.1″) of wheel travel.

  • rear shock adjustments include: 7-steps of spring preload & 3 turns of rebound damping

• ABS equipped, dual 298 mm floating front discs squeezed by radial mount, mono-block, 4-piston calipers.

  • radial mount design helps to reduce caliper distortion for improved braking performance

  • master cylinder uses a 16 mm piston

  • excellent stopping power & control with good lever feedback

• 5-position adjustable front brake lever

• ABS equipped, 245 mm rear disc is squeezed by a lightweight single piston, slide-type Nissin caliper.

• ABS or Anti-Lock Braking System.

  • controlling ECU & hydraulic unit are combined into a single compact unit

  • when ABS system senses impending wheel lock-up (via active type wheel sensors) it regulates hydraulic pressure to the point just before the wheel(s) lock-up

  • ABS benefits include; excellent control under hard braking or when braking on wet, slippery or loose surfaces

  • design reduces weight & centralizes mass

• Lightweight, cast-aluminum 10-spoke wheels.

  • lightweight design reduces unsprung weight for excellent suspension & handling characteristics

  • front rim size is MT3.50-17

  • rear rim size is MT5.50-17

• Conventional, tapered aluminum handlebar.

  • lightweight & strong

  • offers a comfortable, upright riding position for excellent all day riding comfort

  • traditional design allows easy replacement to a different “bend” if desired

• 14-litre fuel tank with replaceable aluminum tank covers.

  • slim design with great knee grip

  • reserve portion of the tank is 2.7 litres (low fuel light illuminates)

  • internal electric fuel pump

  • exterior replaceable tank covers /side panels… reduce expenses if damaged

  

• One piece rider & passenger seat (seat is slightly shorter than FZ-09).

  • seat height is 830 mm (32.7″)

• Round, retro design, liquid crystal multi-function meter / instrument.

  • functions (all digital) include: speedo, bar-style tachometer, odometer, dual trip meters, fuel gauge, fuel reserve trip meter (counts kilometers since low fuel warning flashed) coolant temp, gear indicator, instant & average fuel consumption, clock, intake air temp, D-mode display, TCS indicator & ECO indicator

  • full range of warning lights including ABS & TCS status

  • adjustable background illumination

• Neo-retro style 65/55 watt halogen headlight with retro style aluminum headlight brackets / stays.

  • highlights the XSR900’s “neo-retro authentic sports styling”

• Vintage style 19 LED rear tail light.

• Neo-retro “authentic sports” body design.

  • front fender with aluminum stay, fuel tank panels (3), side covers, rear fender , mirrors & mud guard

• Additional Features

  • Lightweight forged aluminum footrests, shifter & rear brake pedal

  • Lockable steering

  • Durable “O”-ring drive chain

  • 4-way emergency flasher

  • Convenient oil level sight glass.

  • Bungee cord hook points on passenger footpeg mounts

  • Excessive lean angle engine cut-out switch (if unit is on its side the engine will shut down)

  • Low-maintenance sealed battery (battery should be charged during winter storage)

  • Yamaha diagnostic tool connector