Yamaha PW50W 2007, Service Manual, Page: 33 / 168

CHK
ADJ
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 vehi-
cles already in service as well as to new vehicles that are being prepared for sale. All service tech-
nicians should be familiar with this entire chapter.
EAS00037
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYS-
TEM
NOTE:
9
From 18 months, repeat the maintenance intervals starting from 6 months.
9
Items marked with an asterisk should be performed by a Yamaha dealer as they require special
tools, data and technical skills.
3-1
NO. ITEM CHECK OR MAINTENANCE JOB
INITIAL
THEREAFTER
EVERY
1
month
3
months
6
months
6
months
12
months
1 * Fuel line
Check fuel hoses for cracks or damage.
Replace if necessary.
2 Spark plug
Check condition.
Adjust gap and clean.
Replace if necessary.
3 Air filter element
Clean with solvent.
Replace if necessary.
4 * Carburetor
Check engine idling speed and starter operation.
Adjust if necessary.
Clean.
5 *
Cylinder head and
exhaust system
Check for leakage.
Tighten if necessary.
Decarbonize if necessary.
6 * Spark arrester Clean.
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