The "Periodic Maintenance / Lubrication Intervals" schedule is taken directly from the 1984 edition Honda CH125 Factory Service Manual. Before starting any work, always consult the manual for your scooter's model & year and be sure you know what you're doing.

CH125 Periodic Maintenance / Lubrication Intervals

 R: Replace    C: Clean    L: Lubricate   I: Inspect, adjust if necessary

Item

Remarks

Type

 600 mi (1000 km) 2,500 mi
(4,000 km)		 Thereafter every
5,000 mi (8,000 km)		 Thereafter every
7,500 mi (12,000 km)
Fuel Lines* Service Manual page 3-3     I I I
Fuel Filter* Service Manual page 3-3         R
Throttle Operation* Service Manual page 3-3   I I I I
Air cleaner Service Manual page 3-4. Service more frequently in wet or dusty areas   Replace every 12,500 mi (20,000 km)
Crankcase Breather Service Manual page 3-5.
Service more frequently when riding in the rain or at high speeds. 		    C C C
Spark Plug 0.03" - 0.04" (0.8 - 0.9mm) gap NGK DPR7EA-9 R R R R
Valve Clearance* Set to one graduation (which is .004")   I I I I
Engine Oil Service Manual page 3-6 SAE 10W30 type SE motor oil R Replace every 1000 mi (1,600 km)
Engine Oil Strainer Screen Service Manual page 2-2 SAE 10W30 type SE motor oil C Clean every 1000 mi (1,600 km)
Carburetor, idle Speed* Service Manual page 3-7 1500 rpm +/- 100 rpm I I I I
Radiator Coolant Service Manual page 3-7 50/50 water/coolant mix     I Replace every 10,000 mi (16,000 km)
Radiator Core* Service Manual page 3-7 50/50 water/coolant mix     I  
Cooling System and Hose Connections* Service Manual page 3-7       I  
Evaporative Emission Control System* California models only.
Service Manual page 3-8		        

I
Drive Belt* Service Manual page 3-9
Check cracks and wear. Replace if necessary. 		      I Replace every 15,000 mi (24,000 km)
Battery Add distilled water when necessary YB5L-B, CB5L-B I I I I
Final Drive oil* Service Manual page 2-7 SAE 10W30 motor oil Replace every two years
Brake Shoe Wear Service Manual page 3-10 Front & Rear: DP9100, EBC303   I I I
Brake System Service Manual page 3-10  

I

 I I  
Brake Lock Operation* Service Manual page 3-11  

I

 

I

I
Brake Light Switch* Service Manual page 3-12   I I I I
Starter Limit Switch* Service Manual page 3-12 Lithium based grease I I I I
Headlight Aim* Service Manual page 3-11   I I

I

I
Clutch Shoe Wear* Service Manual page 3-11    

I

I

I
Side Stand Service Manual page 3-13

Lithium based grease

   I

I

I
Suspension* Service Manual page 3-13     I

I

I
Nuts, Bolts, Fasteners* Service Manual page 3-14  

I

 I

I

  
Wheels, Tires* Service Manual page 3-14 Front 21 psi, Rear 28 (36 psi max)
Tire size: 3.50 x 10		   I

I

I
Steering Head Bearings* Service Manual page 3-15

Lithium based grease

I

  

 

 I

* These items should be serviced by an authorized Honda dealer, unless the owner has the proper tools, service data and mechanical knowledge to do the work.