2023 YAMAHA YZF MT 07 OEM ENGINE MOTOR TRANSMISSION ASSEMBLY MTN690
$1,350.00
In summary, the 2023 Yamaha YZF MT-07 OEM Engine and Transmission Assembly (MTN690) embodies the essence of Yamaha’s CP2 platform—torque-rich, dependable, and lively. It’s a well-balanced unit known across the motorcycling community for reliability, ease of maintenance, and a playful yet forgiving character that keeps the MT-07 at the top of the middleweight segment for years running.
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2023 YAMAHA YZF MT 07 OEM ENGINE MOTOR TRANSMISSION ASSEMBLY MTN690
The 2023 Yamaha YZF MT-07 OEM Engine and Transmission Assembly (MTN690) is the heart of Yamaha’s popular middleweight naked motorcycle, known for its balance of power, reliability, and affordability. This powertrain combines a punchy 689cc liquid-cooled, DOHC, parallel-twin engine with a 6-speed wet multiplate transmission, delivering an engaging and responsive riding experience.
Engine Overview
The MT-07’s engine—internally coded M414E—uses Yamaha’s Crossplane Philosophy CP2 engine, which gives it a linear torque curve and distinctive exhaust note. Key specs include:
- Displacement: 689cc
- Configuration: 2-cylinder, 4-stroke, DOHC, 8-valve
- Bore x Stroke: 80.0 mm × 68.6 mm
- Compression Ratio: 11.5:1
- Fuel Delivery: Electronic fuel injection
- Ignition System: TCI (Transistor Controlled Ignition)
- Lubrication System: Wet sump
- Cooling System: Liquid-cooled
- Power Output: ~73.4 HP (54 kW) at 8,750 rpm
- Torque: 67 Nm at 6,500 rpm
This engine is revered for its smooth power delivery and excellent midrange torque, making it ideal for daily commuting, spirited canyon riding, or light touring.
Transmission Details
The OEM transmission assembly (MTN690) consists of a 6-speed manual gearbox with precise gear engagement and a chain final drive.
Notable components include:
- Main Axle Assembly (1WS-17401-00)
- Drive Axle Assembly (1WS-17421-00)
- 1st–6th gear sets (Pinion and Wheel gears: 1WS and BAT series part numbers)
- Bearings, collars, shafts, washers, and circlips for stability and alignment
Common part examples: - Gear, 1st Wheel: 1WS-17211-00
- Gear, 6th Pinion: BAT-17161-00
- Bearing (Main Shaft): 93306-20464
The gearbox is engineered for smooth, positive shifts and pairs well with the engine’s broad torque curve. It uses a wet multiplate clutch, providing both durability and progressive engagement, useful for city and sport riding alike.
Assembly Character
This OEM engine and transmission assembly is designed with Yamaha’s signature approach—lightweight, compact, and efficient. The full engine and gearbox unit weighs around 184 kg (wet) including fluids. Its low center of gravity contributes to the MT-07’s neutral handling and ease of control, even for less experienced riders.
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