gas flooding out of carburetor in #5 cylinder.

[cavitill]

I notice on my mercury 150 xr2 v6 1988 that in the bottom cyliinder on the starboard that there is a lot of gas that can be seen around center rod in carb. and when I punch it lots of gas will spray out at me, but it idles good and runs good at full rpm, but bad hole shot. any ideas??thanks David

 

[Bear]

Re: gas flooding out of carburetor in #5 cylinder.

I don't know about your carbs. I can't find the xr2 listed here:<br /> http://www.mercruiserparts.com/select_models2.asp?type_id=MERC <br />or here:<br /> http://www.dolleroffshore.com/parts.cfm?c=mv&m=1 <br /><br />There is obviously quite a few xr2/4/6 around. <br />150 XR2 A905191 - A969903 1986 V6 <br />150 XR2 A969904 - B289429 1987 V6 <br />150 XR2 B289430 - 1988 V6 - sold intnl only <br />150 XR4 B242885 - C100860 1988 V6 <br />150 XR4 C100861 - C221499 1989 V6 <br />150 XR4 C221500 - D000749 1990 V6 2,0 L <br />150 XR4 D000750 - 1991 V6 2,0 L <br />150 XR6 D082000 - 1992 V6 2,0 L <br /><br /> But no parts online? <br /><br />Why is that?

 

[Brew]

Re: gas flooding out of carburetor in #5 cylinder.

Excess fuel in carb could be the result of a stuck float in carb or worn needle valve in carb. <br /><br />New float and needle valve should be availabe in a carb kit for under $20. Fairly easy to replace with the help of a manual.<br /><br />Good luck!

 

[gwh]

Re: gas flooding out of carburetor in #5 cylinder.

You might want to check your reed valve for that cylinder. if a reed valve is faulty (broken) it can cause gas blow out from the carb. you can see the reed valve once you take off the carb. I just had trouble with mine, the yokel who did the "tune up" left a piece of plastic zip tie in the valve area. causing the blow out, it idled fine but when ya put the hammer down it stuttered, stammered etc. maybe you have a moth or something sucked in through the carb and it is causeing the problem for the reed valbe.