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86 merc 150 with 200 carbs what jets do i run

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rbaker1

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86 merc 150 with 200 carbs w

86 merc 150 with 200 carbs what jets do i run i am about 1500 feet above sea level and another question about fuel line route: i have a 3 way splitter at the outlet of the pump and it breaks off to each carb: but ive seen one outlet off the pump and it runs in one side of top carb and out the other to the middle carb which way is best thanks
 
"You put carbs from a 200 on y

"You put carbs from a 200 on your 150? if so you are not going to find a "textbook" answer about the jets.

In 86 the 150 and 200 didn't even have the same powerhead, so the 150 carb was not simply a rejetted 200 carb.

The smaller displacement 150's with WMH model carbs had -

Main Jet - .062
Off-Idle Jet - .050
Idle Air Jet - .052
Vent Jet - .086

If it had WMV model carbs then the jets were -

Main - .074
Idle Air - .034 (except cylinder 5 which was .038)
Vent - .086

You are probably going to have to do some trial and error to see what is going to work for you."
 
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