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Fuel
System
Troubleshooting
Engine Won
'
t Start
Too much fuel getting into cylinder
-
Air filter clogged
- Flooded carburetor
Intake air leak
Fuel contaminatedJdeteriorated
No fuel to carburetor
-
Fuel
filter clogged
-
Fuel
tube clogged
-
Fuel valve stuck
-
Float level misadjusted
-
Fuel
tank
breather
tube
clogged
Engine
Stall,
Or
Run
s Poorlv
Ignition malfunction
Low
compression
Rich
mixture
Lean mixture
Air filter clogged
Intake
air
leak
Fuel contaminated
4-2
Lean M
ixture
Fuel jets clogged
Fuel
tank
breather
tube clogged
Fuel filter
clogged
Fuel
line
restricted
Float valve faulty
Float level too low
Air
vent tube clogged
Advanced ignition timing
Intake air leak
Worn crankshaft seal lalternator side)
Rich
Mixture
Choke valve in ON position
Float
valve faulty
Float level too
high
Air jets
clogged
Air filter element contaminated
Flooded
carburetor
Worn crankshaft seal Iclutch side)
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