F80 carb synch

[Gurkenrat]

Anyone know or have service manual that shows where to tap into carb system to synch them on a 1999 f80? I have synched bike carbs in the past and they were typically a small diameter port that could be threaded into. My crappy service manual doesnt show it. And, what size threads do the adapters need?

thanks

[Gurkenrat]

No one knows the thread size for the vaccum adapters that screw into carb assemblies?

[99yam40]

I myself have never heard of them on outboards,

[boscoe99]

LIT-18616-01-96 is the service manual that you needed. https://www.boats.net/search?q=LIT-1...6&ui=typeahead

Remove the plugs/bolts and take a measurement using a thread pitch gauge to determine the adapter size.

The plugs/bolts are on the intake manifold. Right where the parts catalog shows them to be.

[boscoe99]

You are welcome.