Honda ST50 1969 Shop Manual page 122

SPEClFICATlONS
Carburetor
Typo
tdentificationnumber
Jetneedle~tting
Float level
Pilot screw initial opening
Main jet
Slow jet
Idle speed
TOOL
Float level gauge
PASSAGES ANO JET CLEANING
Remove the carburetor (page 90).
Remove the float chamber body.
Piston valve
PB16A
3rd groove
cno
'82 ADDENDUM
10.7 mm (0.42 in)
3/4
#55
#38
1,500± 100rpm
07401-0010000
Turn the pilot screw in,notingthenumberof
turns before the screw seats lightly (page 103).
Pull out the float pin and remove the float.
Remove the pilot screw.
Remove the float valve.
Removethemainjet andslo wjet.
121