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Honda Super Cub C125 Maintenance Schedule and Service Intervals

This is the maintenance schedule and associated service intervals for the Honda Super Cub C125.

The Honda Super Cub or Honda Cub is one of Honda’s mini motorcycles with a 124 cc engine. Many motorcycles have held the Super Cub name in the past, but the most current version has a 124cc air-cooled single-cylinder engine. It has an electric start, fuel injection, ABS, and an automatic transmission. It shares the same basic platform as the Honda Monkey.

The Honda Super Cub’s US advertising campaign, “You meet the nicest people on a Honda”, had a lasting impact on Honda’s image and on American attitudes to motorcycling, and is often used as a marketing case study.

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What you need to service your Honda Super Cub

Doing your own service on the Honda Super Cub is part of the ownership experience. But what oil, spark plugs etc. should you use? Apart from general standard motorcycle maintenance tools, here’s what you need to service your Honda Super Cub.

PartHonda Super Cub Spec
OilHonda recommends SAE 10W-30 oil that’s API classification SG or higher or JASO T 903 standard MA or higher. There are a lot of oils that fit the bill, but Honda recommends Pro Honda GN4.

Note — there’s no oil filter to change on the Super Cub, just an oil spinner to clean out (see the schedule below)
Spark plugManual specifies NGK CPR6EA-9.
Brake fluidThe manual specifies DOT 3 or DOT 4, but recommends Honda DOT 4 brake fluid.
Air filterHonda part number 17210-KWW-640, harder to find, so get from your dealer.
Chain maintenanceService your chain regularly! Either use a Motul chain care kit, or with Motul chain paste.
GreaseUse lithium soap-based grease and silicone grease for external pivot points, like the sidestand and bearings.
Brake padsEBC FA691HH for the front, and rear is a drum shoe, part EBC 352 (different to the Grom and Monkey, who have a rear disc).
Honda Super Cub maintenance parts

Honda Super Cub C125 Maintenance Schedule

Below is the maintenance schedule for the Honda Super Cub C125. At higher odometer readings, repeat at the frequency interval established here.

Honda indicates difficulty levels in the manual (but you can ignore these and pretty much do everything)

  • X: Intermediate. We recommend service by your Honda dealer, unless you have the necessary tools and are mechanically skilled.
  • 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
  • C: Clean
  • L: lubricate
  • R: replace
Itemsx 1000 mi0.64812162024
Emission-Related Itemsx 1000 km16.412.819.225.63238.4Regular
Replace
Fuel LineXIIIIII
Throttle OperationXIIIIII
Air Cleaner*2RR
Crankcase Breather*3CCCCCC
Spark Plug (CPR6EA-9)IRIRIR
Valve ClearanceXIIIIII
Engine Oil (Pro Honda GN4)RRRRRRR1 Year
Engine Oil Strainer ScreenXXCCC
Engine Oil Centrifugal FilterXXCCC
Engine Idle SpeedXIIIIIII
Evaporative Emission Control System (CA only)XII
Non-Emission-Related Items
Drive Chain (Motul chain paste)Every 300 mi (500 km): I L
Brake Fluid*5 (Honda DOT 4)IIIIII2 Years
Brake Shoes/Pads Wear (FA691HH, EBC 352)IIIIII
Brake SystemIIIIII
Brake Light SwitchIIIIII
Headlight AimIIIIII
Clutch SystemXIIIIIII
SuspensionXIIIIII
Nuts, Bolts, FastenersXIII
Wheels/TiresXXIIIIII
Steering Head BearingsXXIII
Honda Super Cub C125 maintenance schedule

Footnotes:

  • 2. Service more frequently if the motorcycle is ridden in unusually wet or dusty areas
  • 3. Service more frequently when riding in rain or at full throttle.
  • 5. Replacement requires mechanical skill.

Tyre size and tyre pressure for the Honda Super Cub C125

The manual specifies these tyre sizes for the Honda Super Cub C125, as well as these tyre pressures, and recommended brand of tyre.

WheelTyre sizeTyre pressure (cold)Tyre brand ships with
Front70/90-17M/C 38P29 psi (200 kPa)IRC NF63B YD
Rear80/90-17M/C 50P33 psi (225 kPaIRC NR94
Honda Super Cub tire sizes, pressures, brands

About the Honda Super Cub C125

The modern Honda Super Cub C125 is one of Honda’s tiny pocket bikes, like the Grom and the Monkey. Like those motorcycles, it has a 125cc air-cooled fuel-injected single-cylinder engine that makes 9 hp and 8 lb-ft — in fact it’s the same engine in all three motorcycles.

That little engine is linked to a 4-speed transmission with a centrifugal clutch — no need to pull a clutch lever to change gears, making the Super Cub very practical and easy to ride. By the way the original Cub (with a 50cc engine, many years ago) also had this setup, to make riding as simple as possible.

The riding position of the Honda Super Cub and low seat height also means it’s easy to put your feet down down.

The engine has been updated for recent years and is now fuel injected. The brakes, too — ABS is standard in many markets.

The Honda Super Cub is not going to be your first choice for a lot of western uses, but I guarantee you’ll see a lot of postal workers and delivery riders using them for everyday work.

Manual for the Honda Super Cub C125

Honda Super Cub C125 Maintenance Schedule Screenshot From Manual

The above maintenance schedule comes directly from the user’s manual for the Honda Super Cub C125.

You can download it from here.

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