STIHL TS 460 10
2.5 Fuel System
Condition Cause Remedy
Carburetor floods; Inlet needle not sealing. Remove and clean or replace
engine stalls Foreign matter in valve seat
or cone damaged
inlet needle, clean fuel tank, pickup
body and fuel line if necessary
Inlet control lever sticking on Free off inlet control lever
spindle
Helical spring not located on Remove inlet control
nipple of inlet control lever lever and refit correctly
Perforated disc on diaphragm is Fit new metering diaphragm
deformed and presses constantly
against inlet control lever
Inlet control lever too high Set inlet control lever flush with
(relative to design position) bottom of metering chamber
Poor acceleration Idle jet "too lean" Back off low speed adjusting
screw slightly (see Carburetor
Adjustment)
Main jet "too lean" Back off high speed adjusting
screw slightly (see Carburetor
Adjustment)
Inlet control lever too low Set inlet control lever flush with
(relative to design position) bottom of metering chamber
Inlet needle sticking to valve seat Remove inlet needle,
clean and refit
Compensator hose to Clear compensator hose
manifold is blocked using air pressure; replace
manifold if necessary
Diaphragm gasket leaking Fit new diaphragm gasket
Metering diaphragm damaged Fit new metering diphragm
or shrunk
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