Toro 121-4239 Installation Instructions
Form No. 3396-558 Rev A
High-Altitude Kit
Installation Instructions
WARNING
CALIFORNIA
Proposition 65 Warning
This product contains a chemical or chemicals
known to the State of California to cause cancer,
birth defects, or reproductive harm.
Install this kit on the carburetor of the engine to help increase
engine performance and decrease exhaust emissions at high
altitudes. Install this kit if you expect the engine to run
continuously above 1500 m (5,000 ft) in altitude. If you
operate the engine at high altitude without this kit installed,
the engine could experience poor performance, spark fouling,
hard starting, and increased emissions. Once you have
installed the kit, attach the high-altitude label next to the serial
decal on the machine.
Important: Do not operate an engine that has been
converted for high-altitude use at lower altitudes;
otherwise, you could overheat and damage the engine.
Remove the kit from the engine and restore the engine
to its original factory configuration when you run it at
lower altitudes.
Installing the Kit
1.
Remove any covering necessary to access the
carburetor.
2.
Remove the carburetor.
Note: Mark the bowl orientation to the carburetor
body and then tighten to the original point.
3.
Unscrew the bolt on the carburetor-float bowl from
the carburetor.
4.
Unscrew the standard jet from the carburetor.
Note: The jet on the carburetor is configured in 1 of 2
ways; refer to Figure 1 and Figure 2.
1
g020826
Figure 1
1.
Jet
Original Instructions (EN)
Printed in China
All Rights Reserved
*3396-558* A
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