Chk Adj; Periodic Checks And Adjustments; Introduction; Periodic Maintenance Chart For The Emission Control System - Yamaha YP400T Service Manual

INTRODUCTION/PERIODIC MAINTENANCE CHART
FOR THE EMISSION CONTROL SYSTEM
EAS00036

PERIODIC CHECKS AND ADJUSTMENTS

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
longer service life and reduce the need for costly overhaul work. This information applies to vehicles
already in service as well as to new vehicles that are being prepared for sale. All service technicians
should be familiar with this entire chapter.
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL
SYSTEM
No. ITEM
Fuel line • Check fuel hoses for cracks or damage.
1 *
(See page 3-30.) • Replace if necessary.
• Check condition.
Spark plug • Adjust gap and clean.
2
(See page 3-18.) • Replace every 12000 mi (19000 km) or
18 months.
Valve clearance • Check and adjust valve clearance when
3 *
(See page 3-11.) engine is cold.
Crankcase
• Check breather hose for cracks or damage.
4 * breather system
• Replace if necessary.
(See page 3-31.)
Electronic fuel
5 * injection • Check engine idle speed.
(See page 3-17.)
Evaporative emis-
sion control sys- • Check control system for damage.
6 *
tem • Replace if necessary.
(See page 7-41.)
• Check the air cut-off valve, reed valve, and
Air induction sys-
7 * tem hose for damage.
(See page 7-38.) • Replace any damaged parts.
* Since these items require special tools, data and technical skills, have a Yamaha dealer perform the service.
INITIAL
600 mi
ROUTINE
(1000 km)
1 month
3 - 1
CHK
ADJ
ODOMETER READINGS
4000 mi 8000 mi 12000 mi
(7000 km) (13000 km) (19000 km)
or or or or
6 months 12 months 18 months
√ √ √
√ √
Replace.
Every 26600 mi (42000 km)
√ √ √
√ √ √ √
√
√
16000 mi 20000 mi
(25000 km) (31000 km)
or or
24 months 30 months
√ √
√ √
√ √
√ √