1.HERE IS A SAMPLE OF 2006 SPORTSTER FACTORY SERVICE MANUAL

2. HERE IS THE FULL 2006 SPORTSTER FACTORY SERVICE MANUAL BOOK 


2006 Sportster Carburetor

HARLEY DAVIDSON SERVICE MANUALS 

FULL ACCESS SERVICE MANUALS BELOW

 

1

Sportster Models

Touring Models

Dyna Models



2006 Harley-Davidson XL 883 Sportster 883, 2006 Harley-Davidson XL 883L Sportster 883 Low, 2006 Harley, Davidson XL 883C Sportster 883C Custom , 2006 Harley-Davidson XL 883R Sportster 883R, 2006 Harley-Davidson XL 1200C Sportster 1200 Custom, 2006 Harley-Davidson XL 1200R Sportster 1200 Roadster, 2006 Harley-Davidson XL 1200L Sportster 1200 Low.

This service manual covers all the following Sportster Models: XL883, XL1200, XL883L, XL883C, XL883R, XL1200, XL1200L, XL1200C, XL1200R Including Domestic and International Models.

CARBURETOR 4.5

GENERAL

See Figure 4-2. The carburetor is a constant-velocity, gravityfed

type with a float-operated inlet valve, a variable venturi, a

throttle stop screw (for idle speed adjustment) and a fuel

enrichment system (for starting).

Idle and transfer ports provide a balanced fuel mixture during

the transition period from stop to mid-range. A vacuum piston

controls venturi opening.

The carburetor is specifically designed to control exhaust

emissions. All jets are fixed. The idle mixture has been preset

at the factory. The idle mixture screw is recessed in the

carburetor casting. The opening is sealed with a plug

because it is intended that the idle mixture be non-adjustable.

NOTE

Adjusting mixture setting by procedures other than specified

in this section may be in violation of local regulations.

This system partially compensates for changes in the mixture

that are normally caused by changes in altitude. Because

atmospheric pressures drop as altitude increases, the pressure

difference in the upper and lower chambers is reduced;

this results in less fuel being delivered to the engine, thereby

maintaining the correct air/fuel ratio for better engine performance

and reduced exhaust emissions.

The carburetor is equipped with an accelerator pump. The

accelerator pump system uses sudden throttle openings

(rapid accelerations) to quickly inject raw fuel into the carburetor

venturi; this provides extra fuel for smooth acceleration.

ADJUSTMENT

Float Level

1. See Figure 4-3. Place carburetor on a flat, clean surface

on engine manifold side. This is the “base.” Tilt carburetor

counterclockwise 15 to 20 degrees from base until float

 

DISASSEMBLY

Vacuum Piston Chamber

1. See Figure 4-4. Remove screws (11, 13) and throttle

cable bracket (12).

2. Remove three screws (1). Remove top cover (2) and

spring (3).

3. Lift out vacuum piston (6) with needle jet (5) and spring

seat (4). Remove loose parts from vacuum piston.

Carburetor Body

1. See Figure 4-4. Remove four screws (27). Remove float

chamber assembly (26).

2. Remove pin (53), float (50) and fuel inlet valve assembly

(49).

3. Unscrew main jet (28) and needle jet holder (29). Needle

jet (30) is free to be removed from bottom end of passage.

4. Insert thin-bladed screwdriver into slow jet passage to

remove slow jet (55).

Accelerator Pump

1. See Figure 4-4. Remove three screws with lock washers

(24), accelerator pump housing (23), spring (22) and diaphragm

(21).

2. Remove O-ring (25) from housing.

Carburetor Fuel Overflow/Drain Hose

Routing

See Figure 4-4. On non-California models, route fuel overflow/

drain hose (19) from the carburetor fuel overflow fitting

downward and rearward through the space between the

engine rear cylinder and the rear cylinder push rod covers

(intake and exhaust), and then downward through the space

between the engine crankcase and the gear cover.

On all California models, route the fuel overflow/drain (vent)

hose from the carburetor fuel overflow fitting, under the carburetor

float chamber, to a plastic fitting on the inboard side of

the air cleaner backplate. Connect canister purge hose onto

fitting on carburetor body. See 4.9 EVAPORATIVE EMISSIONS

CONTROL–CA MODELS and INSTALLATION under

4.6 AIR CLEANER.