92 175 ev intruder (sneezing)

my intruder wants to sneeze in idol, has anyone expierenced this before, when it is out of gear itll idle smooth then sneeze i say bless you and it does it pretty evenly and often, any suggestion what im lookin out or what could be the problem?

What you are describing is called a "lean spit". One of the cylinders isn't getting enough fuel from the idle circuit of that cylinders carburetor or an air leak exists around the carburetor base or intake manifold or The carburetors linkage is misadjusted or the idle timing is too low. Take it to a good Evinrude/Johnson dealer and provide them with the same information. They will check for air leaks and perform a "synch & link" on the engine to correct the problem.

hey thanks alot sportwin! i really appreciate it.

Take a look at the intake manifold gaskets, if they are black, replace them right away with the chemical resistant orange or brown ones.

Check the engine idle temperature on each cylinder head. It should be around 130-140°. If colder, the motor runs lean.

The side covers on the carbs are known to leak air if they are the black colored ones.

Of course you may also have varnish deposits inside the carbs from stale fuel and recirculation valves that may be sticking open.

thanks alot i will do some investigating after work, if the reason could be its running lean, would this be a reason im not completely "getting it" its running slower than i suppose it should, which it is cruising for me but then again im a first time bassboat owner.

No, you described a lean spit @ idle. That has nothing to do with a lean condition at WOT. The carburetors have low speed circuits to control the amount of fuel the motor gets @ idle. They have intermediate circuits which provide extra fuel to "crossover" to the high-speed circuits. The carbs have high-speed circuits to control the fuel the engine receives @ higher speeds. If you had a lean condition @ high-speed, you would be rebuilding the engine due to piston and cylinder damage.

Yes, if you are running lean at WOT, this is what will happen. And it's not fun!!! Happened to me last Friday.http://a457.ac-images.myspacecdn.com...3893445370.jpg

can i ask sorry for my ignorance but WOT? $#!t i hope that is not the problem.. i have a feeling it could be im not getting the right top end out of this thing. is there any other reasonable diagnosis, that isnt going to empty the pocket?

What rpm's are you getting at WOT? I would suggest putting a new set of plugs in and run it and then check the plugs. Look at them all to see if any look like they are running lean. When my cylinder went down I was running down the river at @ 5000rpm and it all of a sudden dropped to about 4000 to 4250. My WOT was then only about 4500rpm. I knew something was wrong but was 15 miles from the ramp in rough water and had to get back. So I did more damage getting back to the truck.

thanks cowboy.. this isnt sounding to promising at the moment.. i guess ill just have it looked at before serious damage occurs, would it slowly decrease power to a noticeable if i kept running it?.. i cant remember my rpm reading right now.. and i never try to run her over 4500 anyway, but then again this is a first bass boat owner here.. it doesnt feel like if i pushed the hott foot down anymore that i could get too much more out of her.. but supposibley this thing should be getting into the upper 60's and i think the fastest i ever had on it was maybe 60 or so.ive pushed the throttle down once or twice just for a few seconds or so but didnt see the speed climb conciderably... grr i hope not.. cowboy how long would it take for a mechanic to look at it and realize that is the problem? if it had a blown cylinder