Yard Machines 21" Rear Discharge Push Mower Lawn Mower User Manual


 
13
NOTE: A dirty air cleaner will cause an engine to run
rough. Be certain air cleaner is clean and attached to
the carburetor before adjusting carburetor.
WARNING: If any adjustments are made
to the engine while the engine is running
(e.g. carburetor), keep clear of all moving
parts. Be careful of heated surfaces and
muffler.
Throttle Control
If your lawn mower is equipped with an adjustable
throttle control on the handle (refer to the first category
of throttle controls described on page 10 of this
manual), adjust it following instructions below.
Adjust the throttle control only if it is out of
adjustment, or if it has been replaced.
Remove the screw shown in Figure 16. Remove
the cable clamp from the cable.
NOTE: If you have a Tecumseh engine, simply
loosen the screw shown in Figure 16 so the cable will
move freely beneath the clamp. It is not necessary to
remove the screw and clamp completely.
Push the throttle control lever on the handle all the
way forward as far as it will go, then back it off one
click. Make certain the throttle control lever
remains in this position.
Push the control lever on the engine as far toward
the rear of the engine as it will go. Secure the cable
in this position with the cable clamp and screw.
Figure 16
Screw
Cable
Clamp
Control
Engine
Sprint & Classic Models
Quantum Models
Lever on
Screw
Cable
Clamp
Control
Lever
On Engine
Control
Lever
On Engine
Screw
Cable Clamp
Tecumseh Engines
Briggs & Stratton Engines