Lync and Sync not needed?

[fivestarAU]

90hp Mariner 3-cyl 1988

Hi guys, I want to do my carbs because the engine dies / shuts off when I trim up coming back in to the docks. This is a pain as you can imagine for trailering purposes. I don't think I'm over trimming here either. I'm not going up by much and definitely not exiting the trim range into the tilt. I can also see fuel coming out of the middle carb more so than the others so I think I have a stuck float perhaps?

The engine is really tuned in right now and idling great. Will I need to do a lync and sync procedure or can I get away with not doing one if I do my best to keep everything (other than the carbs) where it is? Any advice?

Thanks for your help.

 

[Grub54891]

I would. It's an 88, who knows if its been fiddled with, and you are right in there, so just do it for peace of mind.

 

[Texasmark]

You can if you are careful as to what you take apart. Stay as close to the carbs as you can on any linkage you remove and preferable stay on the carb side of the "link"...where the 3 carbs linkage ties together and gets "sink'd" with the ignition timing. Pay attention to the operation of the cam that opens the butterflies on the carbs as that linkage pertains to the 2 lines that need to line up on the arm and a deadman. That sets up your floats and timing at idle....and by the way, on that engine the idle (675 +/-) is setup by the knurled screw on the throttle linkage but it changes the timing slightly, not the carb butterflies like days of old.