Periodic Inspections And Adjustments; Introduction; Maintenance Intervals Chart; Periodic Maintenance/Lubrication Intervals - Yamaha EF1000 Service Manual

INTRODUCTION/PERIODIC MAINTENANCE/
LUBRICATION INTERVALS
INSP
ADJ
PERIODIC INSPECTIONS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections 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 cleaner air but are also
vital to proper engine operation and maximum performance. In the following maintenance
tables, the services related to emissions control are indicatedas "**" in the chart.
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
Pre-Opera-
Initial Every
No. Item Remarks tion check
1 month 3 months 6 months 12 months
(daily)
or 20 Hr or 50 Hr or 100 Hr
or 300 Hr
**
Check condition adjust
1.
gap and clean. Replace
•
Spark Plug
if necessary.
**
Check and adjust when
•
2.*
Valve Clearance
engine is cold.
**
Check breather hose
3.*
Crankcase breather for cracks or damage.
•
system
Replace if necessary.
**
Check and adjust
4.*
•
Idle speed engine idle speed.
Check for leakage.
*Retighten or replace
•
**
gasket if necessary.
5.
Exhaust System
Check muffler screen
and spark arrester.
•
Clean/replace if neces-
sary.
Check oil level
•
6. Engine oil
Replace
•
•
**
Clean.
7.
•
Air Filter Replace if necessary.
Clean fuel tank filter.
•
8 ..
Fuel Filter
Replace if necessary.
*Check fuel cock filter.
•
Replace if necessary.
Check fuel hose for
9. Fuel Line
crack or damage.
•
*Replace if necessary.
**
Check control lever
10.
•
Control lever (choke) operation.
11.* Control System
Check for fan damage.
•
12. Starting System
Check recoil starter
•
operation.
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