Checking The Carburetor - Yamaha MZ250 Service Manual

DISASSEMBLING THE CARBURETOR
a
a

CHECKING THE CARBURETOR

1. Measure:
9 Float height a
TIP
9 Lift up the float so that the tip of the float
valve lightly contacts the float arm, and then
measure the float height a.
9 Do not adjust the float height.
2. Check:
9 Jets
9 Carburetor body
3. Check:
9 Valve seat
a Wear at groove
b Dirt
b
4-5
CARB
Out of specification → Replace.
Float height:
Refer to "SPECIFICATIONS" in
the Supplementary service
manual.
Check for clogging.
Clogged → Apply compressed air to
clean the jet.
Wear/damage → Replace.
Dirt → Clean.