Owner`s manual

Carburetor Adjustments & Tuning Tips
Adjustments for Competition 127
7. Change the main jet (4) and slow jet (5) as
required.
(4) main jet (5) slow jet
8. Reinstall the float bowl plug.
9. Rotate the carburetor and align the lugs (6) on
the carburetor with the slots (7) on the
insulator and connecting tube.
Tighten the connecting tube and insulator
band screws (8).
(9) carburetor top cover bolts
(10) clamp
(11) carburetor top cover
(12) jet needle/holder assembly
13. Remove the clip (13) and jet needle (14)
from the jet needle holder (15).
14. Change the clip position of jet needle or jet
needle as required.
15. Reinstall the jet needle/holder assembly,
carburetor top, clamp and carburetor top
cover.
16. Tighten the carburetor top cover bolts to the
specified torque:
1.5 lbf·ft (2.1 N·m, 0.2kgf·m)
17. Install the fuel tank (page 31).
18. Start the engine.
If the engine idle speed is too high or too low
or engine is not idling, adjust the engine idle
speed (page 48).
19. Repeat steps 4 – 17 until the engine gives
maximum power with the correct spark plug
reading. It is always better to jet a little rich
than a little lean. It is advisable to record the
settings, course conditions, lap times, and
climatic and barometric conditions for future
reference.
(4)
(5)
(6)
(8)
(8)
(7)
(11) (10)
(12)
(9)
10. Remove the fuel tank (page 30).
11. Remove the carburetor top cover bolts (9),
clamp (10) and carburetor top cover (11).
12. Remove the jet needle/holder assembly (12).
(6) lugs (8) screws
(7) slots
(13) clip
(14) jet needle
(15) jet needle holder
(13)
(14)
(15)
118-133.qxd 06.5.11 13:13 ページ127