MTD 243-650 - Manual (Page 5)

Paper Element
Element
‘Attaching Screw
FIGURE 5.
FIGURE 6
CARBURETOR ADJUSTMENTS
Do not make unnecessary adjustments. Factory settings
are correct for most application. If adjustments are
needed, proceed as follows:
1. Close power adjusting needle (figure 7) by turning
to right (clockwise). Close finger tight only. Forcing
will cause damage.
2 . Open one turn (counterclockwise).
3. Close idle adjusting needle (figure 7) by turning to
right (clockwise). Qose finger tight only. Forcing
will cause damage.
4. Open one and one-half 1 Vi turns (counter-clock­
wise).
5. Start engine. Follow starting instructions page 5.
6. With throttle open (carburetor control at RUN or
FAST position) adjust power adjusting needle one-
eighth (Vs) turn at a time forward or backward un­
til engine runs smoothly. If engine tends to stall
under load enrich mixture slightly (counterclock­
wise).
7. Hold throttle lever closed or move carburetor con­
trol to IDLE or SLOW position and adjust idle ad­
justing needle until engine runs smoothly proceed­
ing as in step six (6) above.
8. Allow several seconds between each adjustment
when performing either step six (6) or seven (7) to
allow engine to react to new setting.
FIGURE 7.
STORAGE INSTRUCTIONS
In event engine is to be stored for any length of time
(30 days or more) or at the end of mowing season,
prepare as follows:
1. Drain gasoline by tipping or by syphon hose, then
run engine until remainder is used and tank and
carburetor are empty.
CAUTiON: Drain into container outdoors away from
fire or flame.
2. Drain carburetor by pressing upward on bowl
drain (figure 7).
3. Inside protection of engine for storage is performed
by removing spark plug and pouring one ounce of
SAE 30 oil through spark plug hole into cylinder.
Crank engine, without starting, several times to
spread oil over cylinder walls.