Yamaha EF1000iS Service Manual

GEN
INFO
1-5
SVU1210
1
SVU1220
2
SVU1230
SVU1240
1
SVU1250
2
7. Rotor puller
1P/N. YU-33270
2P/N. 90890-01362
This tool is necessary for removing the magneto rotor.
8. Pocket tester
P/N. YU-03112, 90890-03112
This instrument is necessary for checking the electrical system.
9. Digital circuit tester
90890-03174
This instrument is necessary for checking the electrical system.
10.Dynamic spark tester 1
P/N. YM-34487
Ignition checker 2
P/N. 90890-06754
This instrument is necessary for checking the ignition...

GEN
INFO
7VV10-01  02.10.4 10:36 AM  Page 6 

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...

INSP
ADJ
2-2
PERIODIC MAINTENANCE/LUBRICATION INTERVALS
No. Item RemarksPre-Ope-
ration
check
(daily)Initial Every
1
month
or 20 Hr3
months
or 50 Hr6
months
or 100 Hr12
months
or 300 Hr
13. Generation Check the pilotlight comes on.0
14.Fittings/ Check all fittingsand fasteners.
Fasteners Correct if necessary.01
2
3
4
5 

Order Job name Q’ty Remarks
Cover 2, cover 3, side cover 2,Remove the parts in the order listed 
rear cover, front cover removalbelow.
1 Cover 2 1
2 Cover 3 1
3 Side cover 2 1
4 Rear cover 1
5 Remort control cable 1 Disconnect the fuel hose from the fuel 
cock side.
6 Choke cable 1 Disconnect the fuel hose from the
carburetor side.
7 Front cover 1 Disconnect the couplers and lead wireds.
For installation, revers the removal
procedure.
2-3
COVERS
COVERS
12
3 4
5 6
7
6 Nm (0.6 m · kg, 4.3 ft · lb)
INSP...

2-4
ENGINE OIL LEAKAGE CHECKING/
OIL LEVEL CHECKING
1
700-087a
a
ENGINE
ENGINE OIL LEAKAGE CHECKING
1. Remove:
9Cover 3
9Side cover 2
9Side cover
2. Check the areas outside of the engine for
oil leakage.
Oil leakage →Replace the gasket, oil
seal, or O-ring.
OIL LEVEL CHECKING
1. Check:
9Oil level with oil warning light 1
Check whether the oil warning light
flashes by operating the recoil starter.
Oil warning light flashes →Add oil.
Oil warning light does not flash →OK
2. Remove:
9Cover 3
9Oil filler cap...

2-5
OIL REPLACEMENT
1
1
SVU2060
OIL REPLACEMENT
1. Warm up the engine for several minutes.
2. Stop the engine.
3. Remove:
9Drain joint 1
9Cover 3
Remove the drain joint from the mount
base.
4. Place a receptacle under the engine.
5. Remove:
9Oil filler cap
6. Install:
9Drain joint 1
7. Tilt the engine to drain the oil completely.
8. Fill:
NOTE:
Recommended engine oil classification:
API Service “SE” or “SF”, if not available, “SD”.
9. Remove:
9Drain joint
10.Install:
9Oil filler cap
9Drain joint
Clean...

2-6
FUEL LEAKAGE/
FUEL TANK FILTER
1
FUEL LEAKAGE
1. Remove:
9Cover 3
2. Check:
9Leakage
Check at fuel tank, fuel pump, fuel
cock, fuel hose, and carburetor.
cC
Replace hose every four years.
FUEL TANK FILTER
w
Do not smoke, and keep away form open
flames, sparks, or any other source of fire
when handling or in the vicinity of fuel.
1. Remove:
9Fuel tank cap
9Fuel tank filter 1
2. Inspect:
9Fuel tank filter
Damage →Replace.
3. Clean:
9Fuel tank filter
NOTE:
Clean the fuel tank filter with solvent, and...

2-7
FUEL TANK STRAINER
2
31
1
FUEL TANK STRAINER
w
Do not smoke, and keep away form open
flames, sparks, or any other source of fire
when handling or in the vicinity of fuel.
1. Remove:
9Cover 3
9Side cover 2
9Rear cover
9Front cover
2. Drain the fuel from the fuel tank com-
pleatly.
3. Remove:
9Fuel tank 1
9Fuel hose 2
9Fuel tank strainer 3
4. Inspect:
9Fuel tank strainer 1
Damage →Replace.
5. Clean:
9Fuel tank strainer
Damage →Replace.
NOTE:
Clean the fuel tank strainer with solvent, and
then dry it...

2-8
AIR FILTER ELEMENT
12
1
AIR FILTER ELEMENT
cC
The engine should never run without the
element, otherwise excessive piston
and/or cylinder wear may result.
1. Remove:
9Cover 3
9Air filter case cover 1
2. Remove:
9Air filter element 2
3. inspect:
9Air filter element 1
Damage →Replace.
Clogging →Wash the element in a sol-
vent, and then dry it thoroughly.
Oil the element and squeeze out the
excess oil.
cC
8Do not wring out the element: this could
cause it to tear.
8Do not wash the element in gasoline or...