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Jets adjustment help needed!

Tiburon_cuba

New member
Hello there, I bought a used boat about a month a go and have been trying to put it in the best possible conditions including the outboard motor. The motor is a 1986 Mercury 150 Black Max (S# A993196), while cleaning the carburetors I found out that the vent jets where missing, the carburetors uses the bowls WH-33, I haven't found any info about this carburetors using vent jets, # 2 on the part list of these carburetors, or at least no for a 150 hp motor.
I went to a marine shop and they told me that I should put the jets and that the jets for that carburetor are 0.078.
I would like to hear opinions about this and if using these jets is going to make the motor more economic in gas or if it will make the motor have problems in idle speed, high speed or in the transition from one speed to the other.

thank you in advance for your help.
Boris.
 
My motor is working in idle speed with no problems at all, but maybe it is using more gas or less than what really needs.
hope to find the answer to this.

regards.
 
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