Service manual

03-23
CV CARBURETOR DRAIN AND
TUNING PROCEDURE
✰ Drain the carburetor before tuning
process.
✰ Set the carburetor pilot screw to 3
full turns out from fully closed
position.
✰ Now, start and warm up the engine
for 2 minutes.
FLOAT HEIGHT ADJUSTMENT
✰ Remove the float chamber body and
“O” ring.
✰ Hold the mixing chamber body in
inverted position as shown in Fig.
✰ Hold the float so that its tongue just
contacts the spring loaded plunger
of the float needle valve.
✰ With a Vernier Caliper, measure the
height from the mixing chamber
body face to top of the float is 17.1
mm(as shown in Fig.)
✰ If the float height is incorrect,
correct it by bending the float
assembly tongue.
✰ Check the float height again.
NOTE :
After adjustment of float height, please
ensure free movement of float in its pivot
pin.
✰ Check for the smooth running of the
Engine.
✰ If erratic turn pilot screw in or out
upto one turn.
✰ Adjust the idling screw until the
engine is smoothly ticking over 1050
+ 200 rpm
✰ Refit the boot to the pilot screw.
ENGINE COMPRESSION TEST
STEP-A
✰ Start and warmup the engine to
normal running temperature.
✰ Remove the spark plug & connect
compression gauge.
Periodical Maintenance