The "Periodic Maintenance / Lubrication Intervals" schedule is taken directly from a 1985 edition Yamaha XC180 factory service manual and the "Periodic Maintenance Emission Control System" schedule is taken from a 1984 edition owner's manual. Before starting any work, always consult the manual for your scooter's model & year and be sure you know what you're doing.
 

XC180 Periodic Maintenance / Lubrication Intervals
Item Remarks Type Initial break-in 1 600 mi (1,000 km) or 1 month Initial break-in 2 2,500 mi
(4,000 km) or 6 months		 Thereafter every 2,000 mi (3,000 km) or 6 months Thereafter every 4,000 mi (6,000 km) or 12 months Thereafter every 9,000 mi (12,000 km) or 24 months
Engine oil Warm up engine before draining (the red circle in the pop-up picture is the 19mm drain plug. The green circle is the oil filter). The drain bolt torque is 31 ft-lbs or 43 Nm. SAE 10W30/20W40 type SE motor oil. Use a high quality motor oil or synthetic oil.
X
 X
X
    
Oil Filter* Replace - see above entry for picture The oil filter cover drain bolt torque is 7 ft-lbs or 10 Nm. Fram CH6005, Hiflo filtro HF145, Emgo 10-79100 X X   X  
Air Cleaner* Wash & dampen with oil. SAE 10W40 type SE motor oil X X X    
Brake system* Adjust free play. Replace shoes if needed   X X X    
V-Belt* Check cracks and wear. Replace if necessary. Replace
every (12,000 mi (18,000 km)		 -       X  
Final drive gear oil (sub transmission oil) Replace. (the red circle in the pop-up picture is the 12 mm drain plug. The green circle is the oil fill.) 200cc of SAE 10W40 type SE motor oil
X
     6,000 mi (9,000 km) or 18 months  
Control and meter cable* Apply chain or cable lube Yamaha chain and
cable lube or SAE
10W30 motor oil
X
X
X
    
Brake lever pivot shaft Apply chain lube lightly. Yamaha chain and cable lube or SAE 10W30 motor oil  
X
X
    
Brake pedal shaft Lubricate. Apply chain lube lightly. Yamaha chain and cable lube or SAE center 10W30 motor oil  
X
X
    
Center/side stand pivots* Check operation and lubricate. Apply chain lube lightly. Yamaha chain and cable lube or SAE 10W30 motor oil  
X
X
    
Front fork oil* Check operation and look for oil leakage.
 
 
X
X
X
X
Front brake tension-bar pivots and bottom link pivots* Apply until new grease shows. Lithium soap based grease
 
 
X
 
X
Front axle* Apply grease lightly. Lithium soap based grease  
 
X
 
X
Steering Bearings* Check bearings assembly for looseness. Moderately repack 9,500 mi (15,000 km). Replace as needed. Medium weight wheel bearing grease. 22 3/16" ball bearings on top, 19 1/4" ball bearings on bottom.  
X
X
   Repack
Wheel bearings* Check bearings for smooth rotation. Tire pressure F 21 psi, R 28 (35 max) psi  
X
X
X
X
Battery Check specific gravity and breather pipe for proper operations. YB10L-B, CB10L-B  
X
X
X
X
Side stand switch* Check and clean or replace as necessary.
 
  
X
X
X
X

* It is recommended that these items be serviced by a Yamaha dealer or other qualified mechanic.

Note:
For further odometer readings, repeat the above maintenance at the period established: Service 1: every 1,900 mi (3,000 km), Service 2: every 3,800 mi (6,000 km), and service 3: every 5,700 mi (9,000 km) intervals.

 
 
Periodic Maintenance - Emission Control System
No. Item Remarks Initial
600 mi
(1,000 km)
or
1 month		 Service 1 2,500 mi (4,000 km) or months Service 2 4,000 mi (7,000 km) or 12 months Service 3 6,300 mi (10,000 km) or 18 months Service 4 8,300 mi (13,000 km) or 24 months
1* Valve clearance Check and adjust valve clearance when engine is cold. X X X X X
2* Spark plug Check condition. Adjust gap and clean. Replace at 4,400 mi (7,000 km) (or 12 months) and thereafter every 3,600 mi (2,000 km) (or 12 months). NGK DPR8EA-9, .031-.035 gap X X Replace X Replace
3* Crankcase
ventilation system		 Check ventilation hose for cracks or damage. Replace if necessary.   X X X X
4* Fuel line Check fuel hose and vacuum pipe for cracks or damage. Replace is necessary. Float height is 23mm +/- 1mm.   X   X  
5* Exhaust system Check for leakage. Retighten if necessary. Replace gasket if necessary.   X X X X
6* Idle speed Check and adjust engine idle speed. Adjust cable free play.   X X X X
7* Evaporative emission control system** Check control system for damage. Replace if necessary     X   X

* It is recommended that these items be serviced by a Yamaha dealer or other qualified mechanic
** California models only

Note:
For further odometer readings, repeat the above maintenance at the period established: Service 1: every 1,900 mi (3,000 km), Service 2: every 3,800 mi (6,000 km), and service 3: every 5,700 mi (9,000 km) intervals.