2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 160Get this manual
FUEL SYSTEMCARBURETION
BST 40 CARBURETOR EXPLODED VIEW
1Cover, Diaphragm 2Spring 3Spring Seat 4"E" Clip
34 32 30 29
5Spacer 6Jet Needle 7Diaphragm Assembly 8Throttle Valve 9Cable Guide 10Spring 11Adjuster Cable 12Drain Plug
3 27 26 36 28