19
GTS 200
Carburetion
Remove Carburetor
1. Move fuel line clamp and disconnect fuel line from
carburetor.
WARNING
CLOSE FUEL valve or plug fuel line to prevent
fuel spillage. Do not use a screw to plug fuel line
as this damages interior of hose.
2. Remove carburetor and rotate carburetor until governor
link is free.
3. On current production engines, the control bracket is held
on with three (3) screws, of which two (2) were removed
to remove the carburetor, Fig. 23. On early production
engines, only two (2) screws held both carburetor and
control bracket. Reinstall both screws to retain control
bracket until carburetor is reinstalled.
Note: Replace air cleaner gaskets and mounting gaskets
whenever carburetor is removed for service.
1
1
1
2
3
4
5
6
Fig. 23 – Removing Carburetor
1.
Mounting screw
2.
Carburetor
3.
Carburetor control bracket
4.
Gasket
5.
Current style, mounting
hole
6.
Early style
4. Remove two (2) carburetor mounting screws.
Disassemble Carburetor
1. Remove bowl nut (with fixed main jet) and fiber washer.
2. Remove float bowl and bowl gasket from carburetor.
3. Remove float hinge pin, float and inlet needle, Fig. 24.
1
2
3
Fig. 24 – Removing Main Jet, Float Hinge Pin
and Inlet Needle
1.
Float
2.
Float hinge pin
3.
Inlet needle
4. Remove idle speed screw with spring, when used.
5. Rotate throttle shaft to closed position and remove throttle
plate screw.
6. Remove throttle plate and throttle shaft with foam seal.
7. Grasp choke plate and remove from choke shaft.
8. Remove choke shaft and felt or foam washer, when used.
9. With a modified 5/16 inch (3.9mm) pin punch, remove
welch plug(s) from carburetor body, Fig. 25.
Note: A convenient way to remove inlet needle seat is with a
#5 crochet hook.
1
2
3
4
5
6
Fig. 25 – Removing Welch Plug
1.
Choke plate and shaft
2.
Idle speed screw
3.
Throttle shaft
4.
Welch plug
5.
5/32” punch
6.
Throttle plate screw
