1986 Ski-Doo Factory Shop Manual, Page 217Get this manual
Sub-section 11
Section 02 ENGINE (CARBURETORFUEL PUMP)
CARBURETOR &FUEL PUMP
MIKUNICARBURETOR
List of engines with their respective carburetor
ENGINE TYPE
247 253 377, 377 Safari 377, 377 Skanctic
Carburetor VM 28-242
MIKUNI NOVM 28-242
VM 34319 VM 34-309 VM 34-276 VM 34-310