Yamaha EF1000iS, Service Manual

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INSP
ADJ
2-1
PERIODIC INSPECTIONS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended inspections and adjust-
ments. 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 relat-
ed 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 ser-
vices related to emissions control are indicated as “*” in the chart.
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
INTRODUCTION/MAINTENANCE INTERVALS CHART/
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
No. Item Remarks
Pre-Ope-
ration
check
(daily)
Initial Every
1
month
or 20 Hr
3
months
or 50 Hr
6
months
or 100 Hr
12
months
or 300 Hr
1.
*
Check condition.
Spark Plug
Adjust gap and clean. Replace if necessary.
0
2.
* Check and adjust
Valve Clearance
when engine is cold. 0
*
3.
Crankcase
Check breather hose for cracks or damage.
0
breather system
Replace if necessary.
4.
*
Check and adjust engine idle speed.
0
Idle speed
Check for leakage.
*
Retighten or replace gasket if necessary.
0
5. Exhaust System
Check muffler screen and spark arrester. Clean/
0
replace if necessary.
Check oil level
0
6. Engine Oil
Replace
0 0
*
Clean.
7. Air Filter
Replace ifnecessary.
0
Clean fuel tank filter.
8. Fuel Filter
Replace if necessary.
0
Check fuel hose for crack or damage.
9. Fuel Line
Replace if necessary.
0
10.
*
Check choke operation.
0
Choke knob
11. Cooling System Check for fan damage.
0
12. Starting System Check recoil starter operation. 0
* : Related to emission control system.