Keihin Carburetors - Schematic View - Polaris TX Starfire Owner's Manual

KE IH IN CA'RBURET ORS
SCHEMATIC VIEW
Your 1973 TX Starfire 439 and 650 machines will be equipped
with Ke ihin carburetors. The 439 with model RD38, and the
650 wit h model R D50.
Each of t hese carburetors has been calibrated and adjusted
for its given engine size.
The following service and trouble shooting information will
be a great benefit to you.
MAIN NOZZL E
/
H IGH SPEED MIX SCREW
VALVE SEAT
INLET CON T ROL VA L VE
INLE T CON T ROL LE V ER
INLET T ENS ION SPRI NG
OUTLET CHECK VA L VE
LOCK SCR EW
PRI MARY VEN T UR I
_)
78
IDLE DISCHAR GE PO RT
PULSE CHAM BER
~
FU EL PU MP D IAPH RAGM
REGU LA TOR CHAMB ER
MA IN DIAPHRAGM
DI A PHR AGM SPRI NG
ADJUST MENT SCREW