Periodic Maintenance; Introduction; Periodic Maintenance Chart For The Emission Control System; General Maintenance And Lubrication Chart - Yamaha MTN850-A 2017 Service Manual

EAS20022

PERIODIC MAINTENANCE

EAS30022

INTRODUCTION

This chapter includes all information necessary to perform recommended checks and adjustments. If
followed, these preventive maintenance procedures will ensure more reliable vehicle operation, a lon-
ger service life and reduce the need for costly overhaul work. This information applies to vehicles al-
ready in service as well as to new vehicles that are being prepared for sale. All service technicians
should be familiar with this entire chapter.
TIP
• The annual checks must be performed every year, except if a kilometer-based maintenance,
or for the UK, a mileage-based maintenance, is performed instead.
• From 50000 km (30000 mi), repeat the maintenance intervals starting from 10000 km (6000 mi).
• Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.
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PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM

NO. ITEM
1 * Fuel line
2 * Spark plugs
3 * Valve clearance
4 * Fuel injection
5 * Exhaust system
Evaporative emis-
6 * sion control sys-
tem
Air induction sys-
7 *
tem
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GENERAL MAINTENANCE AND LUBRICATION CHART

NO. ITEM
1 * Diagnostic sys-
tem check
2 * Air filter element
3 Clutch
CHECK OR MAINTENANCE
JOB
• Check fuel hoses for cracks or
damage.
• Replace if necessary.
• Check condition.
• Adjust gap and clean.
• Replace.
• Check and adjust.
• Check engine idle speed.
• Check and adjust synchroni-
zation.
• Check for leakage.
• Tighten if necessary.
• Replace gaskets if necessary.
• Check control system for
damage.
• Replace if necessary.
• Check the air cut-off valve,
reed valve, and hose for dam-
age.
• Replace any damaged parts if
necessary.
CHECK OR MAINTENANCE
JOB
• Perform dynamic inspection
using Yamaha diagnostic tool.
• Check the fault codes.
• Replace.
• Check operation.
• Adjust.
PERIODIC MAINTENANCE
ODOMETER READING
1000 km 10000 km 20000 km
(600 mi) (6000 mi) (12000 mi)
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Every 40000 km (24000 mi)
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ODOMETER READING
1000 km 10000 km 20000 km
(600 mi) (6000 mi) (12000 mi)
 
Every 40000 km (24000 mi)
 
3-1
30000 km 40000 km
(18000 mi) (24000 mi)
  
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 
  
  
  
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  
30000 km 40000 km
(18000 mi) (24000 mi)
  
  
ANNUAL
CHECK
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ANNUAL
CHECK
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