39TS 700, TS 800
English / USA
Setting the idle speed
Engine stops when idling
Set to standard setting!
: Turn the idle speed adjusting
screw (LA) clockwise until the
abrasive wheel begins to turn, then
turn it back 1 turn
Abrasive wheel runs when idling
Set to standard setting!
: Turn the idle speed adjusting
screw (LA) anticlockwise until the
abrasive wheel stops running,
then turn it another 1 turn in the
same direction.
Erratic idling behaviour, poor
acceleration
Idle speed setting is too lean (e.g. at low
ambient temperature):
Turn the low speed adjusting screw (L)
approx. 1/4 turn anticlockwise until the
engine runs and accelerates smoothly.
Idle speed cannot be increased
sufficiently via the idle speed
adjusting screw (LA), engine stops
when changing from part-load to idle
speed
: Turn low speed adjusting screw (L)
approx. 1/4 turn clockwise.
Correcting the carburetor setting
for use at high altitudes
The setting may have to be marginally
corrected if the engine performance is
unsatisfactory at high altitudes.
: Check the standard setting.
: Let the engine warm up.
: Set idle speed correctly.
: Turn the high speed adjusting
screw (H) clockwise (leaner).
The screws should only be adjusted
carefully and as little as possible. The
slightest adjustment produces a tangible
difference in engine behaviour.
If the setting is too lean, the
engine may be damaged by
overheating and a shortage of
lubricant.
If engine performance deteriorates,
check the spark arresting screen in the
muffler.
Wait until engine has cooled
completely before performing the
following operations.
: Use a suitable tool to squeeze ends
of clip (1) together and then lift the
clip away.
: Remove the spark arresting
screen (2) from the muffler.
: Clean the soiled spark arresting
screen.
: If the screen is damaged or heavily
carbonized, fit a new one.
: Refit the spark arresting screen in
reverse order of steps.
* see "Guide to using this manual"
LA
Spark arresting screen* in
the muffler
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