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Follow instructions in a well-ventilated area away from ignition sources.
If the engine is hot from use, shut the engine off and wait for it to cool before proceeding. Do not smoke.
>CE@<6- Warranty void if necessary adjustments are not made for high altitude use.
At high altitudes, the engine’s carburetor, governor (if so equipped), and any other parts that control the fuel-air
ratio will need to be adjusted by a qualified mechanic to allow efficient high-altitude use and to prevent damage
to the engine and any other devices used with this product. The fuel system on this engine may be influenced by
operation at higher altitudes. Proper operation can be ensured by installing an altitude kit at altitudes higher than
3000 ft. above sea level. At elevations above 8000 ft, the engine may experience decreased performance, even
with the proper main jet. Operating this engine without the proper altitude kit installed may increase the engine’s
emissions and decrease fuel economy and performance. The kit should be installed by a qualified mechanic.
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A1 Main Jet 3000-6000 ft. 2
A2 Main Jet 6000-8000 ft. 2
B1 Outer Bowl O-ring (replacement) 1
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B2 Inner Bowl O-ring (replacement) 1
5 Gasket, Ex, Pipe 1
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1. Turn off the engine.
2. Close the fuel valve, if equipped.
If no fuel valve is equipped, clamp the fuel
hose closed right before the filter. Be careful
to avoid damaging the fuel hose.
3. Place the Engine on its back, with the
Muffler on top. See Figure I.
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4. Remove the two M8 x 20 Flange Bolts
that hold the Muffler in place on the
Muffler Bracket. See Figure J.
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5. Remove the four M8 x 20 Flange Bolts that attach
the Muffler Exhaust Pipes to the Cylinder Heads
and remove the Muffler. Refer to Figure K.
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