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2018 Honda NM4 Maintenance Schedule and Service Intervals

2018 Honda NM4 Stock Image

This is the maintenance schedule and associated service intervals for the 2018 Honda NM4.

This maintenance schedule applies to the following model:

  • 2018 Honda NM4

The Honda NM4 is a touring motorcycle with “futuristic” dimensions. The machine is powered by a 670cc parallel-twin, a sophomoric powerplant tuned for relaxed riding and not hard-core hammering. Honda’s six-speed dual-clutch gearbox allows fully automatic or electronic “manumatic” shifting via handlebar-mounted paddles. The Honda NM4 is as radical as radical gets in street bike styling and absolutely an extremely bold design overlaying proven engineering.

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2018 Honda NM4 Maintenance Schedule

Below is the maintenance schedule for the 2018 Honda NM4.

The maintenance for the 2018 Honda NM4 is broken into two sections: Emission-Related Items and Non-Emission-Related Items.

Highlighted element(s) means that there are changes in this year’s model vs. the previous year’s model.

Periodic Maintenance Chart

Itemsx 1000 mi0.64812162024Regular
Emission-Related Itemsx 1000 km16.412.819.225.63238.4
Fuel LineXIII
Throttle OperationXIII
Air Cleaner*2RR
Crankcase Breather*3CCCCCC
Spark PlugEvery 16,000 mi (25,600 km): I Every 32,000 mi (51,200 km): R
Valve ClearanceXI
Engine OilRRRR1 year
Engine Oil FilterRR
Clutch Oil FilterRR
Engine Idle SpeedXIII
Radiator Coolant*4III3 years
Cooling SystemXIII
Evaporative Emission Control System*5XI
Non-Emission-Related Items
Drive ChainEvery 500 mi (800 km): I L
Brake Fluid*4IIIIII2 years
Brake Pads WearIIIIII
Brake SystemIII
Brake Light SwitchIII
Brake Lock OperationXIIIIII
Headlight AimIII
Side StandIII
Nuts, Bolts, FastenersXIII
Steering Head BearingsXXIII
  • X: Intermediate. We recommend service by your Honda dealer unless you have the necessary tools and are mechanically skilled. Procedures are provided in an official Honda Service Manual
  • XX: Technical. In the interest of safety, have your motorcycle serviced by your dealer.

Maintenance Procedures:

  • I: Inspect and clean, adjust, lubricate, or replace, if necessary
  • R: Replace
  • L: Lubricate
  • C: Clean


  • *1: At higher odometer readings, repeat at the frequency interval established here.
  • *2: Service more frequently if the motorcycle is ridden in unusually wet or dusty areas.
  • *3: Service more frequently when riding in the rain or at full throttle.
  • *4: Replacement requires mechanical skill.
  • *5: 50 STATE (meets California).

Tyre size and tyre pressure for the 2018 Honda NM4

The 2018 Honda NM4 has the following tyres and tyre sizes standard:

  • Front: 120/70ZR18M/C (59W)
  • Rear: 200/50ZR17M/C (75W)

Tire type: Radial, tubeless

Recommended Tires:

  • Front: DUNLOP D423F K
  • Rear: DUNLOP D423 K

The manual for the 2018 Honda NM4 recommends the following tyre pressures (when cold):

  • Front: 33 psi (225 kPa, 2.25 kgf/cm2
  • Rear: 36 psi (250 kPa, 2.50 kgf/cm2)

About the 2018 Honda NM4

As sporty looking as the NM4 is, the cruise-tastic rider triangle puts the rider deep into windsock territory with an upright back and feet well forward. The liquid-cooled, parallel-twin actually runs with a 73 mm bore and 80 mm stroke that leaves it a smidgen under-square. Compression is reasonable at 10.7:1, and a SOHC times the eight-valve head.

The bones set the tone with a long and low build that leaves us with a 64.7-inch wheelbase and 25.6-inch seat height. The steering head layout gives us 33 degrees of rake and 4.3 inches of trail for a ride that trends more toward the stable.

Suspension components are something of a yawn with standard, fixed-parameter forks up front and a Pro-Link mono-shock in the back with 3.9 inches of travel all around.  This is definitely sufficient for street work, it ain’t a dual-sport after all, but the lack of tune-ability in the suspension cuts into the NM4’s versatility and comfort on long trips.

The NM4 rolled for a base MSRP of $10,999 in 2016 but comes back in 2018 for $11,299. You can get it in any color you want as long as you fancy Matte Black Metallic. The NM4 comes with Honda’s one-year, unlimited-mileage warranty.

Manual for the 2018 Honda NM4

2018 Honda NM4 Maintenance Schedule Screenshot From Manual

The above maintenance schedule comes directly from the user’s manual for the 2018 Honda NM4.

You can download it from here.

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