2020 Yamaha MT-07 [Model Overview]

• • Slim, compact, 689 cc, DOHC, 4-valve, liquid-cooled, 20-degree inclined, inline twin-cylinder engine.

The engine has been tuned to provide plenty of low & mid-range torque with very linear throttle response. This engine produces approximately 75 hp & 50 ft-lbs. of torque and is designed to maximize riding fun in the real world.

• 4-valve, downdraft-style combustion chamber with 11.5:1 compression ratio.
  • excellent torque output in the low-to-mid rpm range
  • 4-valve design maximizes flow into & out of combustion chamber
  • 31.5 mm intake & 26.5 mm exhaust valves
  • stainless steel valves feature an Isonite surface treatment & carburized tips for excellent durability & wear resistance
• 42,000 km-valve adjustment intervals.
• Lightweight hollow camshafts.
  • cam profiles & timing accentuate the low-to-mid-range torque & power in the most commonly used rpm range (3,000 to 6,500 rpm).
  • excellent rideability with linear throttle response
• CP3 “CrossPlane Concept” 270-degree crankshaft with an uneven firing order.
  • design reduces inertia torque while emphasizing linear torque
  • design has been optimized to achieve strong torque over a broad rpm range
• Lightweight, gear-driven “coupling force balancer” reduces engine vibration for excellent comfort.
• Fracture split connecting rods feature a “nutless” 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 precision machined
  • design aids in establishing true big end roundness & greater precision in con rod dimensions for excellent durability despite the horsepower loads
• Lightweight, forged, aluminum short skirt pistons.
  • lightweight design aids in fast engine response
  • reduces mechanical vibration for excellent durability
• Direct ceramic composite plated cylinder uses “liner less” bores.
  • ceramic coating is 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
• Offset cylinder design.
  • cylinder is “offset” relative to the crank (toward exhaust side)
  • reduces frictional losses between the pistons & cylinder wall during the power stroke for improved power output & excellent fuel economy
• One-piece cylinder & upper crankcase assembly.
  • superior engine & chassis rigidity (engine is a stressed member increasing chassis rigidity)
  • design reduces weight
• “Closed-loop” 38 mm Mikuni throttle body fuel injection system.
  • system uses throttle position sensor (TPS) & idle speed controller (ISC)
  • 12-hole injectors for optimum fuel atomization
  • system is “tuned” to provide excellent rideability & linear throttle control.
  • closed-loop system” uses an oxygen sensor to “sniff” spent exhaust & automatically adjust the fuel / air ratio for reduced emissions
• Compact Electronic Control Unit (ECU).
  • utilizes a powerful 32-bit processor for fast control of the injection & ignition processes
• Airbox design features dual intakes.
  • design reduces intake noise
  • viscous paper type air filter is utilized
• Compact, 6-speed transmission.
  • Tri-axis design “stacks” input/output shafts to centralize mass
  • overall engine size is shorter front to back allowing the engineers the freedom to place the engine in the frame for optimum front to rear weight balance
  • transmission ratios are designed to suit the character (torque & power) of the engine
  • specially chosen gear ratios means fewer gear changes
  • 6th gear is an over drive gear reducing engine rpms at highway speeds for a comfortable ride
• Compact, clutch design with light clutch lever pull.
• Lightweight, vertical flow flat radiator with ring type cooling fan.
  • ring type cooling fan pulls more air than a conventional non-ring type design
  • left & right rad covers add a stylish highlight
• Liquid-cooled oil cooler.
  • maintains consistent lubricant temperatures for extended engine life
• Convenient spin-on type oil filter & easy access drain plug.
  • for fast, easy oil changes
• Convenient oil level sight glass.
• 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
• High performance direct ignition coils (ignition coils are built into the spark plug caps).
  • reduces weight & complexity
• AC Magneto produces 410 watts of power @ 5,000rpm.
• Stylish, compact, low mounted, 2 into 1 exhaust system.
  • triple expansion muffler design with 3-way honeycomb catalyzer reduces exhaust emissions
  • low mounted design centralizes mass for excellent handling & a light weight feeling
• Air Injection System (AIS… not ram air) injects fresh air into exhaust ports to fully burn any unburnt fuel, further reducing exhaust emissions.

• Diamond-type, high tensile steel frame.
  • optimized rigidity balance for light, agile handling & excellent stability
  • engine is a stressed member of the chassis, allowing a lighter, more compact main frame
• Upright, comfortable riding position is a key feature of the MT-07.
  • excellent all day rider comfort
• Key chassis geometry figures include:
  • 1400 mm (55.1″) wheelbase
  • 24.5 degrees of rake & 90 mm of trail
  • front/rear weight distribution is 49.2% front & 50.8% rear
  • lean angle is 49 degrees, highlighting the sporty nature of the MT-07
  • chassis dimensions & design centralizes mass & lowers centre of gravity for light, agile handling
  See also

  

  Amanda Quick·

  Motorcycle News

  ·December 18, 2024·10 min read

  Harley-Davidson’s Lawsuit Loss Spikes Tariff Taxes +56%, Yamaha’s V4 Engine Preps for Big Debut

• Lightweight, high tensile steel “gull wing” type short design swingarm.
  • lightweight design reduces unsprung weight for superior suspension performance
  • excellent rear wheel traction & control
• Revised, 41 mm conventional fork offers 130 mm (5.1″) of wheel travel.
  • new spring rate & damping force settings for improved suspension performance & comfort
  • oil level & amount have been optimized
• Lightweight, aluminum upper & lower triple clamps.
• Adjustable link-type Monocross rear suspension with 130 mm (5.1″) of wheel travel.
  • new, horizontally mounted rear shock now includes both rebound & spring preload adjustability
  • adjustments allow the rider to tailor settings to match rider weight, load & riding conditions
• ABS equipped dual 282 mm floating wave-style front discs & ultra-rigid 4-piston monoblock calipers.
  • excellent stopping power & control with good lever feedback
• ABS equipped 245 mm wave-style rear disc is squeezed by a lightweight single piston slide-type Nissin caliper.
• Anti-lock braking system (ABS).
  • controlling ECU & hydraulic unit are combined into a single compact unit to reduce weight & centralize mass
  • when ABS system senses impending wheel lock-up (via active type wheel sensors) it regulates hydraulic braking pressure to the point just before the wheel or wheels lock-up
  • ABS benefits include excellent control under hard braking or when braking on wet, slippery or loose surfaces
• 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 handlebar design.
  • combines with the upright riding position to provide excellent all day riding comfort
  • conventional design means the handlebar can be easily changed to a different “bend” if desired
• 14-litre fuel tank with new, more stylish replaceable covers.
  • slim design with great knee grip
  • slim design combines with low seat height for a light, agile feel & increased rider confidence
  • reserve portion of the tank is 2.7 litres (low fuel light illuminates)
  • steel tank covered by easy-to-replace plastic panels, significantly reducing costs in the event of damage
• Larger, more stylish, separate rider & passenger seats. Rider seat height is 805 mm (31.7″).
  • excellent comfort & support
  • rear seat can be removed & replaced by optional Genuine Yamaha Accessory rear seat cowl
• Compact, LCD multi-function digital meter.
  • functions (all digital) include: bar-style tachometer, digital speedometer, odometer, dual trip meters, fuel gauge, fuel reserve trip meter (counts kilometers since fuel went on reserve), clock, gear indicator, instant & average fuel consumption, intake air temperature & coolant temperature
  • full range of warning & indicator lights
  • background illumination is adjustable
• Compact handlebar switch gear.
  • starting function is integrated into the engine kill switch
  • passing high beam flash button is provided
• One piece, multi-reflector 60/55 watt halogen headlight.
  • Design with lower winglet enhances the naked roadster styling
• LED taillight with 24 bulbs for excellent visibility.

• 5-position adjustable front brake lever
• fold out under seat bungee cord fastener straps
• lockable steering
• durable “O” ring drive chain
• 1 piece chain guard & inner rear fender
• 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 can significantly reduce diagnostic time in the event of a problem