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CARB U RETOR I NSTALLATION
I nstall t h e carburetors onto the cylinder heads a n d tighten the
insulator bands securely.
I nstal l the following parts
- air cleaner chamber
- air cleaner housing
- fuel tank
- throttle cables
Adjust as follows:
- pilot screw ( page 4- 1 51
- carburetor synchronization ( page 3 - 1 0 ) .
- throttle grip free play ( page 3-6 )
- carburetor idle speed ( page 3- 1 1 )
- carburetor choke ( page 3-7 ) 0
P I LOT SCR EW ADJ USTM ENT
I D L E D R O P P R O C E D U R E ( U . S . A . O N L Y l
NOTE
The pilot screws are factory p re-set and no adjustment is
•
necessary u nless the pilot screws are replaced .
Use a tachometer with graduations of 50 rpm or smaller
•
that will accurately indicate a 50 rpm change .
1 . Remove the pilot screw plugs ( page
2
Turn each pilot screw clockwise until it seats lightly and
o
back it out to the specification give n .
CAUTION
•
Damage to the pilot screw seat will occur if the pilot screw is
tightened against the seat.
This is an initial setting prior to the final pilot screw adjust
ment.
turns out
I NITIAL OPENI N G : 1 - 1 /4
3 . Warm u p the engine to operating temperature .
Stop and go driving for 1 0 minutes is sufficient.
4 . Attach a tachometer according to the manufacturer ' s in
structions .
5 0 Adjust the idle speed to the specified rpm with the throttle
sto p screw .
1 , 200 ± 1 00rpm
I D LE S P E E D :
6
Turn each pilot screw 1 /2 turn out from the initial setting .
0
7 . If the engine speed increase by 5 0 rpm o r more , turn each
pilot screw out by successive 1 /2 turn increments u ntil
engine speed does not increase 0
8
Adjust the idle speed with the throttle stop screw .
0
9 . Turn the rear cylinder carburetor pilot screw i n until the
engine speed drops 50 rpm .
1 0 . Turn the rear cylinder carburetor pilot screw 1 turn out
from the position obtained in step 9
Adjust the idle speed with the throttle stop screw.
1 1
0
1 2
Perform steps 9, 1 0 and 1 1 for the front cylinder carbu
o
retor pilot screw
0
1 3 0 Drive new pilot screw plugs i nto the pilot screw bores
with a 7 mm valve guide driver (P/N 07 942 - 8230000 ) .
W h e n fully seated the plug surfaces w i l l b e recessed 1
m m .
0
0
4-8)
0
0
FUEL SYSTEM
( 1 I PLUG
4- 1 5
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Table of Contents
Troubleshooting
