Yamaha MTN850-A 2017, Service Manual, Page: 112 / 560

PERIODIC MAINTENANCE
3-2
4 * Front brake
• Check operation, fluid level,
and for fluid leakage.
• Replace brake pads if neces-
sary.
     
5 * Rear brake
• Check operation, fluid level,
and for fluid leakage.
• Replace brake pads if neces-
sary.
     
6 * Brake hoses
• Check for cracks or damage.     
• Replace. Every 4 years
7 * Brake fluid • Change. Every 2 years
8 * Wheels
• Check runout and for dam-
age.
•
Replace if necessary.
   
9 * Tires
• Check tread depth and for
damage.
• Replace if necessary.
• Check air pressure.
•
Correct if necessary.
    
10 * Wheel bearings
• Check bearing for looseness
or damage.
   
11 *
Swingarm pivot
bearings
• Check operation and for
excessive play.
   
• Lubricate with lithium-soap-
based grease.
Every 50000 km (30000 mi)
12 Drive chain
• Check chain slack, alignment
and condition.
• Adjust and lubricate chain
with a special O-ring chain
lubricant thoroughly.
Every 1000 km (600 mi) and after washing the motorcycle, riding in the
rain or riding in wet areas
13 * Steering bearings
• Check bearing assemblies for
looseness.
  
• Moderately repack with lith-
ium-soap-based grease.
 
14
*
Chassis fasteners
• Make sure that all nuts, bolts
and screws are properly tight-
ened.
    
15
Brake lever pivot
shaft
•
Lubricate with silicone
grease.
    
16
Brake pedal pivot
shaft
•
Lubricate with lithium-soap-
based grease.
    
17
Clutch lever pivot
shaft
•
Lubricate with lithium-soap-
based grease.
    
18
Shift pedal pivot
shaft
•
Lubricate with lithium-soap-
based grease.
    
19 Sidestand
•
Check operation.
• Lubricate with lithium-soap-
based grease.
    
20
*
Sidestand switch
• Check operation and replace
if necessary.
     
21 * Front fork
• Check operation and for oil
leakage.
•
Replace if necessary.
   
22
*
Shock absorber
assembly
• Check operation and for oil
leakage.
• Replace if necessary.
   
NO. ITEM
CHECK OR MAINTENANCE
JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi)
10000 km
(6000 mi)
20000 km
(12000 mi)
30000 km
(18000 mi)
40000 km
(24000 mi)