200 mercury exhaust

[rgsauger]

I have found a good medium sound for me just pull can and dont drill nothin , still sounds good but not to bad

That's what I did when I did my mounts. Sounds mean. Love it

[mrichartz]

Ok thank you for responses ! So I don’t have to remove power head? Someone told me I would have to in order to get results I wanted

To drill it right you need to pull it some pics ..
From online..not excatly best it best but you should get the idea

[tlwjkw]

Ok thank you for responses ! So I don’t have to remove power head? Someone told me I would have to in order to get results I wanted

that "someone" is pretty much right.. ya not gonna change tha sound and NOT pull tha power head ta do it..

remove tha can?.. gotta pull tha PH..

drill tha down housing?.. gotta pull tha PH..

but i have seen some pretty stupid attempts at it... one really stood out.. drilled two 1 1/2" holes thru tha down housing AND can......

one that use ta be done a lot was drillin' a coupla 1" hole in tha gear case.. it works (to an extent) but jus never was in favor of it....

[tux974]

Peppaceno, listen to the guys above if you plan on doing correctly. You need an 18" X 1/2" drill bit to do it nicely and not struggle
Picture below is how they came drilled from Mercury, 5 holes per side.
Drilled this way will give you your desired sound and I have never seen one crack unless you hit a log or telephone pole....

[TEXAS20225]

the midsection can be removed with out lifting powerhead ive done it countless times but i also have a lot of experience in merc motor disassembly and rebuild its a need to know how

[tux974]

the midsection can be removed with out lifting powerhead ive done it countless times but i also have a lot of experience in merc motor disassembly and rebuild its a need to know how

Bobby, yes sir The real problem or challenge is putting it back together properly if new at it.

[tlwjkw]

ya'll got it right.. experience is why i didn't even bring it up.............

[mrichartz]

That's for the advanced class....

Should tear It down for the experience anyway not that hard.

[stormbringer1]

Old School. Drilling and opening the exhaust with can removal does improve performance slightly. Idles quiet if its drilled just above the cavitation plate. You have to check your jetting if you want the most out of it. A chocolate brown plug color is probably best . If its light grey or white re jet at least one to two sized richer. Adding an exhaust tuner maxes that all out. Be sure the tuner is in before you check plug readings. Mercury would not have a high performance tuner if they did not work. You won't see a tremendous gain in a heavy boat but lighter ones respond better. Keep in mind that every modification made in an engine is attached to something else. The engine is an air pump. I flow port my reed cages and use Boyeson dual stage reeds. This along with the exhaust actually does help noticeably. Be sure to re install reeds with red lock tite on the screws. Some guys who misunderstand things on a higher level then I may not agree bu all the race boats have relieved exhaust.