buell s1 lightning '97 Manuel

 

Buell motorcycles sold in the state of California are equipped
with an evaporative (EVAP) emissions control system. The
EVAP system prevents fuel hydrocarbon vapors from escap-
ing into the atmosphere and is designed to meet the Califor-
nia Air Resource Board (CARB) regulations in effect at the
time of manufacture.

The EVAP functions in the following manner:

 

●

 

 Hydrocarbon vapors in the fuel tank are

directed through the vent valve and stored in the carbon
canister. If the vehicle is tipped at an abnormal angle, the
vent valve closes to prevent liquid gasoline from leaking
out of the fuel tank through the vapor vent hose.

 

●

 

See 

 When the engine is running, carburetor

venturi negative pressure (vacuum) slowly draws off the
hydrocarbon vapors from the carbon canister through the
vent hose. These vapors pass through the carburetor and
are burned as part of normal combustion in the engine.
The large diameter canister-to-air cleaner hose (canister
clean air inlet hose) supplies the canister with fresh air
from the air cleaner.

1

 

The system has been designed to operate with a minimum of
maintenance. Check that all hoses are properly routed and
connected and are not pinched or kinked.

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