SMufflerpark Arresting Screen in
Checking Spark Plug
4
A
Wrong fuel mix (too much engine oil in
the gasoline), a dirty air filter and
unfavorable running conditions (mostly
at part throttle etc.) affect the condition of
the spark plug. These factors cause
deposits to form on the insulator nose
which may result in trouble in operation.
1
6
5
If engine is down on power, difficult to
start or runs poorly at idling speed,
first check the spark plug.
•
If engine is down on power, check the
spark arresting screen in the muffler:
Fit a new spark plug after
approx. 100 operating hours -
or earlier if the electrodes are
badly eroded.
•
Allow muffler to cool down.
•
Remove spark plug -
see chapter “Starting”:
•
Take out the four screws.
Remove the muffler upper
casing (4).
•
Clean dirty spark plug.
•
•
Check electrode gap -
!
Warning!
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL (see “Specifications”). Always
(2)
it should be 0.5mm/0.02" (A) -
•
•
•
Bend back the retaining tabs (5).
Pull out the spark arresting screen
readjust if necessary.
•
Use only resistor type spark plugs
(6).
of the approved range.
press spark plug boot
snugly onto
Clean spark arresting screen if
necessary. If screen is damaged or
coked up, fit a new one.
spark plug terminal (1) of the proper
size. (Note: If terminal has detachable
SAE adapter nut, it must be attached.)
A loose connection between spark plug
terminal and ignition wire connector in
the boot may create arcing that could
ignite combustible fumes and cause a
fire.
Rectify problems which have caused
fouling of spark plug:
•
Refit the spark arresting screen in
the reverse sequence.
Incorrect carburetor setting, too much oil
in fuel mix, dirty air filter,
unfavorable running conditions, e.g.
operating at part load.
40
066
| Categories | Chainsaw Manuals, STIHL Chainsaw Manuals |
|---|---|
| Tags | STIHL 066 |
| Download File |
|
| Language | English |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Chainsaw |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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