Weber 1100 NG Troubleshooting Guide download pdf

WEBER CARBURETOR

TROUBLESHOOTING GUIDE

This guide is to help pinpoint problems by diagnosing engine symptoms

associated with specific vehicle operating conditions.

The chart will guide you step by step to help correct these problems.

For successful troubleshooting, please do the following:

1. Complete all steps suggested in the box, and any that follow in

the guide.

2. Complete all of the suggestions in order, doing so will eliminate

any secondary problems.

Follow diagnosis directions completely (Cleaning, adjustment etc.)

4. Do not do any other procedures other than the ones suggested.

This Weber carburetor has been manufactured using very high quality control

standards. Through years of experience we have found that most carburetor

problems are caused by other engine components.

Operating Conditions

Engine Symptoms

Stalls/ Rough/ Slow/ Flood Races Does not

Hesitates Poor Low Smokes Start or

Dies

Running

Idle

Cold

5C 5D

Starting

Hot

4A 5I

1A 3B

2G 5D

Engine

Cold

1A 5D

4A 5C

5C 5D

Temperature

Idling

Hot

4A 5B

2G 5D

5B 5G 5F

Cold

Running

Hot

2A 2H

4A 6E

5E 5J

Cold

2F 5H

6A 6D

Acceleration

Hot

2F 5H

1A 2A

5E 5J

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Summary of Contents

Page 1 - TROUBLESHOOTING GUIDE

WEBER CARBURETOR TROUBLESHOOTING GUIDEThis guide is to help pinpoint problems by diagnosing engine symptoms associated with specific vehicle operatin

Page 2

WEBER CARBURETOR TROUBLESHOOTING GUIDE FOR YOUR SAFETYRemember ! A Clean engine will make all work easier, accurate, and safer.ALWAYS: NEVER:Use

Page 3

WEBER CARBURETOR TROUBLESHOOTING GUIDE B.Test the fuel flow at the fuel filter and then at the Fuel Pump:If fuel flow is not adequate go to step 2C.C.

Page 4

WEBER CARBURETOR TROUBLESHOOTING GUIDESEALED VACUUM CONNECTIONS TO PROPERLY OPERATE.A.Testing the vacuum system with a handheld vacuum pump is very he

Page 5

WEBER CARBURETOR TROUBLESHOOTING GUIDE5CARBURETORDo the following steps only after you have completed 1A, 2A, 3A and 4A. This will help you save time

Page 6

WEBER CARBURETOR TROUBLESHOOTING GUIDEG.Testing the idle mixture adjustment:Adjust with the engine at idle speed; turn the mixture adjustment screw in

Page 7

WEBER CARBURETOR TROUBLESHOOTING GUIDE both throttle plates to open at the same time. This is wrong. The progressive is designed that the primary bar

Page 8

WEBER CARBURETOR TROUBLESHOOTING GUIDE32/36 DFEV CARBURETORElectric ChokeFuel InletChoke Pull offAcceleratorPumpVacuum Advance Idle Mixture ScrewPortC