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13-2 CARBURETOR
GRAND DINK125/150DINK125B&W125
TROUBLESHOOTING
Engine idles roughly, stalls or runs poorly
Engine does not start
Incorrect idle speed
No fuel in tank Incorrect idle speed
Rich mixture
Restricted fuel line Rich mixture
Lean mixture
Too much fuel getting to cylinder
Clogged air cleaner
Clogged air cleaner
Intake air leak
Contaminated fuel
Contaminated fuel
Faulty fuel pump
Faulty air-cut off valve
Damaged vacuum tube and connectors
Damaged carburetor insulator
Throttle does not open fully, so engine stalls Rich mixture
Damaged vacuum piston diaphragm Auto bystarter valve opens excessively
Clogged diaphragm hole Faulty float valve
Float level too high
Clogged air jets
Auto bystarter valve set plate installed in
Lean mixture
the wrong groove
Clogged fuel jets
Clogged air cleaner
Clogged fuel tank cap breather hole
Clogged fuel filter
Bent, kinked or restricted fuel line
Faulty float valve
Float level too low
Faulty fuel pump or insufficient output
Engine is hard to start
No fuel in tank
Restricted fuel line
Clogged fuel strainer
Faulty fuel pump
Broken or clogged vacuum tube
Faulty or clogged charcoal canister
Lean mixture
Clogged charcoal canister
Bent, kinked or restricted fuel line
Clogged fuel strainer
Float level too low
13-2-3