Suzuki FU150SC Manual page 52

4-11 FUEL AND LUBRICATION SYSTEM
Remove the pilot air screw @).
NOTE:
Before removing the pilot air screw ®. determine the setting
by slowly turning it clockwise and count the number of turns
required to lightly seat the screw. This counted number is
important when reassembling pilot air screw to original position.
e Remove the throtile valve Q) by removing the screws.
ACAUTION
These two screws are locked by punching their ends.
Once removing the screws, they will be damaged.
NOTE:
Apply a small quantity of THREAD LOCK "1342" to the screws,
when installing the throttle valve to its shaft.
Pe ee] 99000-32050: THREAD LOCK "1342"
CARBURETOR JET INSPECTION
Check following items for any damage or clogging.
* Pilot jet * Float
* Main jet * Needle valve
* Main air jet * Starter jet
* Pilot screw ' * Gasket and O-ring
' * Needle jet air bleeding hole * Pilot outlet and by-pass holes
NEEDLE VALVE INSPECTION
lf foreign matter is caught between the valve seat and the
needle, the gasoline will continue flowing and cause it to overflow.
{f the seat and needle are worn beyond the permissible limits,
similar trouble will occur. Conversely, if the needle sticks, the
gasoline will not flow into the float chamber. Clean the float
chamber and float parts with gasoline. If the needle is worn'as
shown in the illustration, replace it together with a valve seat.
Clean the fuel passage of the mixing chamber with compressed air.
Page 2-12
Page 2-13
OIL FILTER
Refer to page 2-11.
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CORRECT INCORRECT
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