Adjusting The Throttle Link Rod; Adjusting The Pilot Screw - Yamaha FT50C Service Manual

FUEL
3. Install the pilot screw 9, turn it in until it
is lightly seated, then out the specified
number of turns.
Pilot screw setting:
Carburetors #1, #2, and #3:
1 3/4–2 3/4 turns out
Carburetor #4: 2–3 turns out

Adjusting the throttle link rod

1. Push the throttle control lever 1 to the
fully open position as shown, and then
measure the gap between the carburetor
throttle lever 2 and carburetor stopper
3.
2. If out of specification, adjust the throttle
link rod length.
Gap a: Less than 0.5 mm (0.02 in)
3. Remove the throttle link rod 4, adjust it
to the specified length b, and then install
it.
4-13
Fuel system
Throttle link rod length b:
144 mm (5.67 in)
4. Push the throttle control lever 1 to the
fully open position as shown.
5. While pushing the carburetor throttle
lever 2 against the carburetor stopper
3, loosen, and then tighten the adjusting
screw 5.

Adjusting the pilot screw

1. Start the engine and warm it up for 5 min-
utes to check the stability of the engine.
Adjust the pilot screw if necessary.
2. Attach the special service tool to high-
tension cord #1 1.
1
S62Y4350
62Y5A11