Honda NT 650 88-91 Parts Catalog

Specifications and Main Features

  • Model: NT650 Honda
  • Capacity:
  • Configuration: 2-cylinder V-type
  • Cycle: 4-cycle
  • Type of cooling system: Liquid cooled.
  • Type of camshaft: OHC
  • Valves: 3 per cylinder
  • Displacement: 647 cc
  • Type of lubrication: Wet Sump
  • Carburetor: 36.5 mm (2)
  • Main Jet: 138(FR), 132(RR)
  • Slow Jet: 42
  • Type of power transmission:
  • Type: Constant Mesh Transmission
  • Speeds: 5
  • Clutch: Wet Multi Plate Clutch
  • Gear Shift Pattern: 1-N-2-3-4-5
  • Design:
  • Petrol Tank Standard Fuel Capacity: 3.18 gallons
  • Petrol Tank Reserve Fuel Capacity: 2.10 gallons
  • Type of air filter: paper
  • Driven Sprocket: 16T
  • Rear Sprocket: 44T
  • Motor chain: DID525 V7 112L
  • Brake systems:
  • Brake systems front: Single Disc
  • Brake systems rear: Single Disc
  • Wheels:
  • Wheel dimensions front: 110/80-17
  • Wheel dimensions rear: 150/70-17
  • Tyre pressure: 36 PSI
  • Maintenance/Tuning:
  • Valve Clearance:
  • Intake: 0.13 - 0.17mm
  • Exhaust: 0.18 - 0.22mm
  • Type of ignition system: full transistor
  • Spark Plug Gap: 0.80 - 0.90 mm ( 0.031 - 0.035 )
  • Fresh Oil:
  • Minimum fuel octane rating: 86+ Octane
  • Engine lubricants: Pro Honda GN4 10W40 , GN4 20W50
  • Engine lubricating oil volume:
  • After engine oil drain: 2.32 QT
  • After engine assembly: 2.94 QT
  • Coolant Ratio for 50/50:

Frequently Asked Questions

  • Does the NT650 have any engine? What’s its type?

V2 type 4 stroke engine resides in NT650

  • Could you share with us the engine displacement of NT650?

NT650 has an impressive engine displacement of 647cc.

  • While on the topic, what is the fuel tank capacity of the NT650?

NT650 manages to fit a fuel tank capacity of 3.18 gallons (standard) and 2.10 gallons (reserve).

  • Another important detail, does NT650 come with speeds, and if it does, how many?

NT650 has been ingeniously designed to possess a 5-speed constant mesh.

  • Is Single disc brakes the only component involved in NT650?

No, NT650 also uses single disc brakes for front and rear.

  • Is 36 PSI the tire pressure for NT650?

Yes, that is correct.

  • Would you advise against using other oils for NT650 or Pro Honda oils are best?

It would be in your best interest to choose Pro Honda GN4 10W40 and GN4 20W50 oils.

  • What will the valves approx measure so that we can gauge their clearance specification for NT650?

Intake valves go from 0.13 to 0.17mm, and exhaust valves go from 0.18 to 0.22mm.

User Manual

Honda NT 650 88-91 Parts Catalog
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