Re: Marine Carb or Not
 

Steve Snider nailed it.

I am an insurance claims adjuster {shhhh....}. If you have a loss that is related to non CG compliant stuff on your boat {including the carb}, you will be SOL regarding coverage. i.e. they won't pay ya.

I sent the Holly 850 from my ZZ502/502 to Nickerson's to have it marinized. It came back with J tubes installed, elec. choke gone, and numerous other mods. I bolted it on and the ZZ runs like a raped ape. Cold starts are better than ever. Checked plug color and they look good.

Carb is now CG good, ins. co. good, and performs good. All I needed to do was to adjust the idle/throttle stop screw.

Re: Marine Carb or Not
 

As mentioned before there is no good reason not to run a marine carburetor on a pleasure boat. As far as converting the carburetor goes that can be a very grey area depending upon how in depth they want to get with you. There are changes to the way the throttle shafts are installed, and manufactured on a marine carbruetor. At this time there are not any "USCG Leagal" carburetors. To pass the inspection the manufacture of the carburetor has to prove that they tested the product to meet the USCG requirements when it was designed. If you have someone modify the carburetor to "marinize" it other than the manufacture of it, you might be in a very grey area. If the insurance company checks the list number of the carburetor, and the manufacture explains that it is an automotive carburetor, who is going to be responsible?

Re: Marine Carb or Not
 

Anyone have a Holley Marine "J" tube part number? Can't seem to find one.

Re: Marine Carb or Not
 

I bought them from CP Performance before. I did wonder why they stocked them.

Re: Marine Carb or Not
 

would not recommend using a carb at all

Roby

Re: Marine Carb or Not
 

If you have the money to build 2 540's How can you consider going cheap on carbs? I would walk out the door in a hurry from ANY builder who suggests outherwise. They have NO idea about MARINE engines if they suggest an auto carb.....BG makes awesome marine carbs.....

BH

Re: Marine Carb or Not
 

I just ordered a Sea Demon today.. Pricewise they really arent that bad..

How much did Nickerson get to mod the Holley??? I have a canidate for that on one of the boats...

Re: Marine Carb or Not
 

Scott B.,
Including shipping, the cost was almost as much as it would be to purchace a new marine carb.

My Holly came with the ZZ502. Thought of selling it, and then buying a new marine carb. But, I couldn't find anyone willing pay enough to make it worth while. So off to Nickerson's it went.

Along with the carb, Nickerson's requested complete engine specs, plus boat description and weight. They dialed it in perfectly. I'm glad I sent it to them instead of buying an off the shelf carb.

Re: Marine Carb or Not
 

Thanks.. I have a 750 that works great on one of my boats, but I wwould like it marinized.. I'll do some budgeting!!

Re: Marine Carb or Not
 

Scott,

IF you have any tuning questions on the new carb just let me know.