1985 Honda Odyssey 350 FL350R Shop Manual, Page 47Get this manual
FUEL SYSTEM
HIGH ALTITUDE ADJUSTMENT
When operating this vehicle at high altitude the air-fuel mixture becomes overly richAbove 5,000 feet (1,500 m) driveability and performance may be reduced and fuel consumption increasedA high altitude jet is available for carburetor modification to compensate for this high altitude richnessTemperature -30 C-17.5C (-22FOOF) -17.5C-5C (OOF22F) #140 2nd groove
1-112 turns
-5C40C (22F104F) #138 1st groove turns out #140 2nd groove 1-12 turns out #142 3rd groove 1-12 turns out
CAUTION
Main jet Jet needle setting Air screw opening Main jet Jet needle setting Air screw opening Main jet Jet needle setting Air screw opening
#142 3rd groove 1-12 turns out #145 4th groove
1-112 turns
Sustained operation at altitudes below 5,000feet (1,500 m) with the high altitude jet installed may cause the engine overheating and damage
out #142 3rd groove
1-112 turns