1989 Ski-Doo Repair Manual, Page 217Get this manual
Sub-section 10
Section 02 ENGINE (CARBURETORFUEL PUMP)
CARBURETOR &FUEL PUMP
FLOAT CARBURETOR
List of engines and their respective carburetors
ENGINE TYPE
Carburetor VM 28-242
CARBURETOR MIKUNI NO
VM 28-242
VM 34-319 VM 34-309