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73
Environmental and altitude related mixture adjustments
Condition
Mixture will be
Required adjustment
Cold air
Leaner
Richer
Warm air
Richer
Leaner
Dry air
Leaner
Richer
Very humid air
Richer
Leaner
Low altitude
Standard
None
High altitude
Richer
Leaner
Low barometric pressure
Richer
Leaner
High barometric pressure
Leaner
Richer
NOTE:
Before making any carburetor jetting changes verify that:
o
You are using the proper fuel and oil
o
The fuel is fresh and uncontaminated
o
The oil and fuel have been mixed in the proper ratio
o
The carburetor is clean (no plugged jets)
o
The air filter is properly clean and oiled
o
The float height is within proper specification (proper measuring technique
is described later in this section)
NOTE:
Perform all jetting changes on a motorcycle that has been warmed up to
proper operating temperature.
The carburetor on your Cobra
motorcycle is quite adjustable.
Figure 59 shows its range of
adjustment and in particular what
adjustable component affects what
range of operation (specifically
throttle position).
FUEL SCREW ADJUSTMENT: Adjust for maximum idle speed
The fuel adjustment screw is located on the left side of the carburetor. It is the
smaller of the two adjustment screws and requires the use of a small flat blade
screwdriver for adjustment. After adjusting for maximum idle speed, use the idle
screw to adjust the desired idle speed.
NOTE:
If the fuel screw requires more than 3 turns out, replace the pilot jet for
one that is one size richer (larger number) then re-adjust the fuel screw.
Figure 59
Summary of Contents for CX50P3
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Page 24: ...24 Parts Engine Bottom End and Transmission...
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Page 32: ...32 Parts Forks Triple Clamps...
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