Buell Blast 2014 Service Manual page 257

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CLEANING AND INSPECTION
Carburetor Housing
11 1
WARNING
Compressed air can pierce the skin and cause injury.
Never use your hand to check for leaks or to determine
air flow rates. Wear safety glasses to shield your eyes
from flying dirt and debris. Failure to comply could result
in death or serious injury.
Clean all internal air/fuel passages in carburetor housing with
carburetor cleaner. Blow out passages using low pressure
compressed air. Proceed as follows:
Slow Speed Circuit
1. See Figure 4-15. Spray carburetor cleaner into air inlet
hole of slow speed circuit. While spraying, verify that
solution exits slow jet bore at bottom of carburetor hous-
ing. Placing finger over slow jet bore, verify that solution
exits four pin holes just inboard of the throttle plate, as
well as the single pin hole outboard of the throttle plate.
2. Using a tapered, rubber-tipped nozzle on the air hose (to
prevent both loss of air pressure and to avoid scratching
or nicking the bore), apply low pressure compressed air
into air inlet hole to blow carburetor cleaner out of slow
jet bore. Placing gloved finger over slow jet bore, blow
carburetor cleaner out of pin holes inboard and outboard
of throttle plate.
Main Circuit
1. See Figure 4-15. Plugging main jet hole in carburetor
throat, spray carburetor cleaner into air inlet hole of main
circuit. While spraying, verify that solution exits main jet
bore at bottom of carburetor housing.
2. Using a tapered, rubber-tipped nozzle on the air hose (to
prevent both loss of air pressure and to avoid scratching
or nicking the bore), apply low pressure compressed air
into air inlet hole to blow carburetor cleaner out of hole in
carburetor throat. Placing gloved finger over hole in car-
buretor throat, blow carburetor cleaner out of main jet
bore at bottom of carburetor housing.
Float Bowl Vent
1. See Figure 4-15. Spray carburetor cleaner into air inlet
hole of float bowl vent. While spraying, verify that solution
exits two holes in float bowl chamber at bottom of carbu-
retor housing.
2. Using a tapered, rubber-tipped nozzle on the air hose (to
prevent both loss of air pressure and to avoid scratching
or nicking the bore), apply low pressure compressed air
into air inlet hole of float bowl vent to blow carburetor
cleaner out of holes in float bowl chamber.
4-18 2004 Buell P3: Fuel System
WARNING
1
2
4
5
1. Float bowl vent (air inlet)
2. Slow speed circuit (air inlet)
3. Main circuit (air inlet)
4. Vent holes
5. Main jet bore
6. Slow jet bore
Figure 4-15. Air/Fuel Passages in Carburetor
7764
3
7762
6