Service Manual

Briggs & Stratton Quantum- Dralnlng Gasoline
1. Stop the engine and pull the wire off the spark
plug as shown
in Figure 6.
NOTE: Drain gasoline from a cold engine only.
2. Turn the fuel shut-off valve, if applicable, to the
OFF position
as shown in Figure IO.
3. Remove the cap from the fuel tank and use a
pump-type syphon to drain the fuel into a clean
gas can.
n
NOTE: This is the only procedure recommended for
draining fuel:
Briggs
& Stratton Quantum Changing the
Crankcase
Oil
Change the oil after the first 2 operating hours and after
25 hours thereafter. Since warm oil drains better and
carries more contaminants than cold, run the engine
for a minute or
so before draining oil.
1. Stop the engine and pull the wire off the spark
plug as shown
in Figure 6.
2. Remove the grass bag. Drain gasoline from the
fuel tank; refer to Draining Gasoline, page
20.
3. Remove the dipstick. Tip the mower on its left
side and empty all the oil into a drain pan. See
Figure
11. Tip mower down and up a few times
to ensure oil drains completely.
Figure
I I
4. After draining, fill the engine with 410 cc (14 oz)
fresh oil. Check the oil level using a dipstick. Fill
to “full” mark,
but do not overfill.
Briggs
& Stratton Quantum- Adjusting the Throttle
Throttle control adjustment may
be required if the
engine does not start or stop. Whenever a new throttle
control cable is installed, the throttle must be adjusted.
1. Stop the engine and pull the wire off the spark
2. Move the throttle control to FAST.
3. Loosen the cable clamp screw until the throttle
cable slides. See Figure
12. Align the holes in the
throttle lever and throttle bracket using a 3mm
(.121”) diameter pin. Tighten the cable clamp
plug. See Figure
6.
screw to lock the adjustment in place.
THROTTLE CABLE CLAMP THROTTLE
LEVER SCREW CABLE
Vacu-Power Mower