1985 Mercury Outboard V-300 V-3.4L Shop Service Manual, Page 72Get this manual
CARBURETOR JET CHARTS STANDARD JET CHART
Carburetor No(.tamped on top side
01 carburetor mounting flange)
Carburetors ith number W03Carburetors with num ber W05Jet
Standard Jet Size
Type Mai Vent Idle Main Vent Idle
Note: JetlI.ted arfor engIne
.072 .080 .052 .076 .080 .062
from 0.2500 feef of e-
HIGH ALTITUDE JET CHART
HIGH ALTITUDE JET CHART
Engine Operlltlng EleVation (Above Sea Level)
REJETTING CARBURETORS lor HIGH ALTITUDE OPERATION
Th carburetor jets installed al the fac tory are for engine operat ion sea level through an elevation of 2500 feel (762m) above sea leve lIf the engine is to he operated an altitude higher than 2500 feet above sea level, it will be necessa to reje (re move the carbu retor jets and install jets with different rifi ce size) the carbu retorsEach lime the engine is to be operated at different ele vation from th previous limerefer 10 thCa rbu retor Je Charts", and rejel carburetors fo eleva tion ngine will be opera led t