1199cc, liquid-cooled, DOHC, 4-valve, inline twin produces serious torque and horsepower.
26 degree engine slant.
allows use of downdraft intake system
reduces centre of gravity for lighter, agile handling
DOHC 4-valve cylinder head design.
37mm intake & 31mm exhaust valves with Isonite coating on valve tips for durability
valve angles are 12.5 degrees intake & 14 degrees exhaust
cylinder head design provides a compact combustion chamber
2- spark plugs per cylinder.
shortens the flame diffusion time for more complete combustion
speeds combustion for excellent torque character
42,000 km valve adjustment interval.
Short skirt, forged aluminum pistons.
fast throttle response
reduced reciprocating mass means less mechanical vibration
270 degree crankshaft with uneven firing order (270 & 450 degrees).
superior throttle control & excellent rear wheel traction
Carburized connecting rods (carburizing is a heat treating process that increases the carbon content on the outer surface of the rod).
excellent strength & durability
Direct ceramic composite plated cylinder uses “liner less” bores
ceramic coating sprayed directly on the aluminum block, eliminating the liner & reducing weight
excellent heat dissipation for consistent power delivery
coating enhances the thin film of oil between the cylinder & piston, reducing friction & increasing power
Dual, gear driven balancer shafts.
reduced engine vibration for excellent rider & passenger comfort
Single, side mounted radiator (LHS) with ring-type cooling fan.
maintains consistent engine temperatures for optimum performance
side mounted location lessens unit’s overall length of the bike for agile handling
eliminates the possibility of the rad being damaged by debris kicked up by front wheel
Dry sump lubrication system (oil tank is integrated into engine cases).
eliminates deep design oil pan for increased ground clearance
Easy access spin-on type oil filter & easy access oil drain plug.
fast & easy oil changes
“Closed loop” 46 mm dual bore Mikuni throttle body fuel injection system.
system uses throttle position sensor (TPS) & acceleration position sensor (APS)
injectors feature 12 holes & 20 degree spray pattern for excellent fuel atomization
“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 traction control system.
works in conjunction with the YCC-T system, utilizing front & rear wheel sensors
when rear wheel begins to loose traction, the ECU modifies the YCC-T function, ignition timing & fuel injection to reduce power & eliminate wheel spin
actuation button is on the multifunction instrument panel
traction control helps maintain traction when accelerating on slippery surfaces. System automatically engages when the ignition is turned on but can be turned off if desired
2 operating modes: TCS1 completely eliminates wheel spin & TCS2 allow limited wheel spin
Yamaha D-Mode variable throttle control… 2 modes available
enables the rider to adjust the performance characteristics of the engine based on riding preferences or riding conditions
“S mode” provides normal / instant throttle response
“T mode” provides slower response for more “relaxed” engine power delivery
D-Mode switch is located on the R.H.S. handlebar switch gear.
Electronic cruise control system (part of the YCC-T functions).
“settable range” is from 50 to 160 km/hr ? transmission must be in 3rd gear or higher
system cancelled by activating either brake, clutch, using activation switch or closing throttle
Wide ratio 6-speed transmission.
optimized gear ratios for a wide variety of riding conditions
top gear is an overdrive gear ? reduced rpms at highway speeds ? excellent rider comfort
Low maintenance hydraulic clutch.
light, linear, consistent clutch feel
Low maintenance, compact shaft drive system.
utilizes a hypoid type final gear (allows the use of a smaller ring gear)
reduced unsprung weight for enhanced handling
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
Direct ignition coils (ignition coil is built into the spark plug cap) with iridium spark plugs.
Automatic decompression device.
fast, easy starting
lighter weight, more compact starter motor
2 into 1 exhaust system.
features a honeycomb style catalyzer to reduce emissions
compact “elliptical” shaped, short design muffler reduces machine width
heat shield protects rider and passenger
Compact 600 watt (@ 5,000rpms) AC magneto.
lots of electrical power for accessories