Periodic Checks And Adjustments; Introduction; Maintenance Intervals Chart; Periodic Maintenance/Lubrication Intervals - Yamaha EH63 Service Manual

PERIODIC CHECKS AND ADJUSTMENTS

INTRODUCTION

This chapter includes all information necessary to perform recommended checks and adjustments.
These preventive maintenance procedures, if followed, will ensure more reliable machine operation
and a longer service life. The need for costly overhaul work will be greatly reduced. This information
applies to machines already in service as well as new machines that are being prepared for sale. All
service technicians should be familiar with this entire chapter.

MAINTENANCE INTERVALS CHART

Proper periodic maintenance is important. Especially important are the maintenance services
related to emissions control. These controls not only function to ensure air filter but are also vital to
proper engine operation and maximum performance.

PERIODIC MAINTENANCE/LUBRICATION INTERVALS

Maintenance Items
Clean engine and check bolts
and nuts
Check for leakage from hoses
and fitting
Check and refill engine oil
Change engine oil (*1)
Replace engine oil filter (*1)
Check battery electrolyte fluid
level
Clean spark plug
Clean air cleaner
Spark arrester (optional part)
Replace air cleaner element
Clean fuel strainer
Clean and adjust spark plug
and electrodes
Replace spark plug
Remove carbon from cylinder
head
Clean carburetor
Clean engine base (oil pan)
Every 8 hours Every 50
(Daily) hours

(Daily)

(Daily)

(Refill daily to
upper level)
 
(Initial 20 (Every 100
hours) hours)

(Initial 20
hours)




(Every 100
hours)
2-1
Every 200 Every 500
hours hours








1
2
3
4
5
6
7
Every 1000
8
hours
9
10