Will this rebuild kit fit my Mercruiser 3.0 carb?

[Zozr]

I keep seeing this "Rochester" word on all of the eBay carb rebuild kits, and after watching a couple carb videos a guy in one of them said there is a difference and they are often confused. I don't want to order the wrong rebuild kit so I am coming here. How do I know if I have a rochester carb or not?

Will this work: http://www.ebay.ca/itm/NIB-Mercruise...3D291204663865 ?

I am in Canada and just trying to find a decent price on a rebuild kit for my mercruiser 3.0 carb number 807504.

Thank you

 

[Alumarine]

That's a MercCarb not a rochester I believe
Mercruiser kit is 3302-804844002
Sierra kit is 18-7098-1

 

[Zozr]

Thank you for the reply and the part numbers. I will buy one of those and not a rochester one, too bad because all the rochester kits are quite a bit cheaper!

I have one more question for somebody. When working on my engine earlier I noticed these two wires with no connections coming off a part of the ignition system. I happened to be watching a video on youtube and saw the exact same two wires disconnected from the video guys system too. What are these wires for? I found it weird they are off on mine and his. Although his engine is out of the boat so I am thinking maybe he disconnected then from something that was left in the boat when the engine was removed. I linked a picture, I am referring to those two white wires with the crimps on the ends on the right hand side of the box with the wires.

http://imgur.com/a/wKbsp

 

[Scott06]

You put a jumper wire between these two connections to put the ignition in base mode to set initial timing.

 

[thumpar]

An easy way to tell the which you have is by the idle mix screws. The mercarb has 1 and the rochester has 2.