Clutch; Carburetor - Suzuki DR-Z70 Service Manual

7-5 SERVICING INFORMATION

CLUTCH

Complaint
Slipping First clutch
clutch.
Gear shifting
clutch
Dragging First clutch
clutch.
Gear shifting
clutch

CARBURETOR

Complaint
Starting difficulty.
Idling or low-speed
trouble.
Medium or
high-speed trouble.
Overflow and fuel
level fluctuations.
Symptom and possible causes
1. Excessively worn clutch shoes.
1. Clutch out of adjustment.
2. Excessively worn clutch plates.
1. Erratic clutch weight movement.
1. Too heavy oil.
2. Clutch out of adjustment.
Symptom and possible causes
1. Clogged starter jet.
2. Clogged starter jet passage.
3. Air leaking from joint between starter plunger and
carburetor.
4. Air leaking from carburetor joint or vacuum hose
joint.
5. Improperly working starter plunger.
1. Clogged or loose pilot jet.
2. Air leaking from carburetor joint.
3. Clogged pilot outlet port.
4. Clogged bypass port.
5. Starter plunger not fully closed.
1. Clogged main jet.
2. Clogged needle jet.
3. Improperly working throttle valve.
4. Clogged fuel filter.
1. Worn or damaged needle valve.
2. Broken needle valve spring.
3. Improperly working float.
4. Foreign matter on the needle valve.
5. Incorrect float chamber fuel level.
Remedy
Replace.
Adjust.
Replace.
Replace.
Replace with proper gear
oil.
Adjust.
Remedy
Clean.
Clean.
Tighten, adjust, or replace
the gasket.
Tighten or replace defec-
tive part.
Adjust.
Clean or tighten.
Tighten or replace defec-
tive part.
Clean.
Clean.
Adjust.
Clean.
Clean.
Adjust.
Clean or replace.
Replace.
Replace.
Adjust or replace.
Clean or replace the needle
valve seat.
Adjust float height.