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E
When fitting the plug, always clean the
gasket surface and use a new gasket.
Wipe off any dirt from the threads and
screw in the spark plug to the correct
torque.
Spark plug torque:
Refer to “SPECIFICATIONS”, page 4-1
NOTE:
If a torque-wrench is not available when
you are fitting a spark plug, a good esti-
mate of the correct torque is 1/4 to 1/2 a
turn past finger-tight. Have the spark plug
adjusted to the correct torque as soon as
possible with a torque-wrench.
Initial of spark plug
Plug wrench size
I.D. mark
w
q
903022
B
C
D
21 mm (13/16 in.)
16 mm (5/8 in.)
18.3 mm (23/32 in.)
1
2
Spark plug gap
Spark plug I.D. mark (NGK)
EMU16350
CHECKING TOP COWLING
Check the fitting of the top cowling by
pushing it with both hands.
If the fitting is loose have it repaired by a
Yamaha dealer.
4-13
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F30C, Yamaha F40C |
| Model Year | 2004 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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