Axcel75

I have a 1991, Chevy 305, Mercruiser V8. It's an inboard with a 4 BBL carb w/ what I'm guessing is a remote choke.

My question is, how do I hook-up the choke so it will work properly. I just purchased this boat a few months ago so I'm not that familiar with the engine. I was told the choke wasn't hooked up before, and now that I just had the carb rebuilt, I'd like to hook it up.

IF ANYONE CAN HELP ME PLEASE REPLY!

Thank you sooo much!!!

Sincerely,
James

Griff

You don't need a choke a boat. Its never that cold when most people go boating to need one. They end up up being more of a pain in the butt than they are worth.

220BR

Sounds like you have a Rochester Quadrajet (4MV). If you search the Merc Service bulletins from the mid 90s you will find one on the Q-jet and it has a blurb on how to properly set up the divoced choke rod.

If you don't have the rod, you need to order it from a Merc parts dealer. There are two different rods; one for the lo-rise manifold and one for the hi-rise manifold. I'll bet (but don't know) that you have the lo-rise.

220BR

Griff is right. I only get to use my boat every other weekend, so by the time I'm ready to fire it up, the bowl is dry of gas from evaporation. So, I use ether to fire it up so I don't have to spin it dry to fill the bowl.

If you use ether, you don't need no stinking choke.

Griff

Your carb is leaking internally. The fuel should not evaporate out the bowls that fast.

Neither my current or previous boat have chokes. Just a couple pumps of the throttle at start up and they fire up. Run it at 1200-1500 for a minute after start up.

220BR

I don't agree. While the older brass plug q-jets were notorious for leaking from the wells, the newer (~'78) bodies don't leak as often. Plus, my plugs are epoxied. Q-jets are well vented with the main vent right over the fuel well. 98 degrees for 14 days just seems to makes the fuel evaporate.

Downtown42

220 BR: please e/m me I have question. [email protected]