CE8117_0908_BRIGGS & STRATTON Trouble shooting flow chart.pdf

(1728 KB) Pobierz

For Briggs & Stratton Discount Parts Call 606-678-9623 or 606-561-4983

TROUBLESHOOTING FLOW CHARTS

www.mymowerparts.com

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Bowl Style Carburetor Troubleshooting

Hunts and Surges

Will Run only on Prime

Will run only if the choke is used

Determine that the governor

system is functioning properly

using the proper isolation techniques

Troubleshoot

governor system

Does the engine still hunt and surge?

No

Y e s

Done!

Partially engage choke

or gently touch primer bulb

No

Inspect, clean or replace

mainjet and retest

Does the engine improve?

Y e s

Does the engine still hunt and surge?

No

Remove and clean

carburetor, retest engine

Y e s

Replace

Carburetor

Does the engine still hunt and surge?

Y e s

No

Flow Chart Key

Done!

Problem

Question

Answer

Action

Result

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Compression Diagnostics

Troubleshooting Flow Chart

Check for proper top

no load speed by

model and type number

Low Power

Is the top no load speed OK?

Y e s

Is there a parasitic load?

No

Y e s

Don’t Know

Check bowden wire/throttle

control for full range travel

Low or High

Y e s

Disengage load by

removing belts, etc.

No

Is it correct?

No

Still low power?

Repair as

needed

Repair load issues

as needed

Partially engage choke

Check for intake tract leaks,

gasket leaks, loose/leaking

carburetor space blocks,

loose/leaking crossover tubes

Does speed increase or

engine run more smoothly?

Y e s

Is leakage detected?

Y e s

No

No

Repair as

needed

Perform leakdown test

Overhaul carburetor looking

closely for obstructed jets

Reading

acceptable

Is leakage detected?

Adjust

valve lash

Leakage

unacceptable

Flow Chart Key

Problem

Question

Answer

Action

Result

Repair as

needed

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Compression Troubleshooting Flow Chart

Check/repair

fuel system

Engine Smokes

What color is the smoke?

Black/Gray

Excessive Oil Consumption

Does oil level drop more

than one ounce per hour?

White/Blue

Y e s

Is Engine Smoking?

Y e s

No

Was engine tipped?

No

Y e s

No

Oil use

acceptable

Check for oil

fouled lter element

Check for over lled oil level

Check for fuel contaminated oil

Check for proper viscosity

Is the lter fouled?

No

Leakage

unacceptable

Rapair/replace

faulty components

Y e s

Reading

acceptable

Perform Crankcase

Vacuum Test

Is leakage detected?

Replace and run

Engine for ten minutes

Perform Leakdown Test

Y e s

Is Vacuum Test OK?

Is it still smoking?

Low

No

Y e s

External oil leaks present?

No

Re-check all work

Check breather system

Check crankcase seals

Check block for porosity

Y e s

Done!

No

Is vacuum now ok?

Repair as

needed

Done!

Y e s

Flow Chart Key

Problem

Question

Answer

Action

Result

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Plik z chomika:

Inne pliki z tego folderu:

277527 DOV 700-750 Series repair manual BRIGGS & STRATTON.pdf (3713 KB)
87971 Resistance Tables Supplement(1).pdf (92 KB)
190275GS Hand Held Generators.pdf (3054 KB)
103149GS Generator Troubleshooting.pdf (2129 KB)
87971 Resistance Tables Supplement.pdf (92 KB)

Inne foldery tego chomika:

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