Carburetor - Suzuki LT-Z90 Manual

7-6 SERVICING INFORMATION

CARBURETOR

STARTING DIFFICULTY
Symptom, possible causes and remedy
• Clogged fuel pipe.
• Air leaking from joint between intake port and car-
buretor.
• Air leaking from carburetor joint.
• Improperly working starter plunger.
IDLING OR LOW-SPEED TROUBLE
Symptom, possible causes and remedy
• Clogged or loose pilot jet.
• Air leaking from carburetor joint.
• Clogged pilot outlet port.
• Clogged bypass port.
• Starter plunger not fully closed.
MEDIUM OR HIGH-SPEED TROUBLE
Symptom, possible causes and remedy
• Clogged main jet.
• Clogged needle jet.
• Improperly working piston valve.
• Clogged fuel filter.
OVERFLOW AND FUEL LEVEL FLUCTUATIONS
Symptom, possible causes and remedy
• Worn or damaged needle valve.
• Improperly working float.
• Foreign matter on the needle valve.
• Incorrect float chamber fuel level.
Clean.
Tighten or replace gasket.
Tighten or replace defective parts.
Adjust.
Clean or tighten.
Tighten, or replace defective part.
Clean.
Clean.
Adjust.
Clean.
Clean.
Adjust.
Clean or replace.
Replace.
Adjust or replace.
Clean or replace with needle valve seat.
Adjust float height.