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#1
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Do all two strokes.....
Just sound like they are ready to fly apart at any time? Mine is running good, pluggs are a nice color, good compression and fire on all cylinders, but it just sounds sketchy. I have a buddy with an 88 special Johnson and it sounds like death too. This is a 200hp Merc Black max by the way. WOT sounds great, and acceleration is great, just idle sounds somewhere between a steam engine and a top fuel dragster. Any other opinions?
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#2
05-26-2009, 07:57 PM
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While they do all have a staccato often erratic sounding low rpm cadence the Merc two smokers are the worst offenders I have heard. They remind me of my 454 Chevelle when I put in the high lift cam. My 150 Black Max sounded the same and everyone I have heard also.
Sounds cool, when I grabbed the binnacle I used to pretend I was shifting a Hurst shifter
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Willy 1986 V20 Old School 1992 V20 1992 150 Yamaha 1997 HydraSport 2250 Vector 2009 17' G3 Outfitter "G Spot" http://www.youtube.com/watch?v=TDebw...eature=related "I won't be wronged, I won't be insulted and I won't be laid on a hand on. I don't do these things to others and I require the same from them" JW
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#5
05-27-2009, 07:01 AM
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Like Willy said...those Mercs have a cam-shaft as big as your leg!!...at idle they all sound like they're waiting on the green light to come down!!...
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'74 V-20/ BF 150 '95 V-21/ BF 150 '84 V-20/ 200 2.4 Merc '87 V-20/'18 F150 Yamaha 
Last edited by reelapeelin; 05-27-2009 at 10:44 AM.
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#6
05-27-2009, 08:09 AM
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you would probably have to get a DI 2 stroke (with the opti as an exception) for it not to sound like a top fuel dragster. You should hear a merc race 2.5 outboard engine. That thing sounds wicked. Its hard to describe.
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#7
05-27-2009, 12:02 PM
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Like above posters stated, normal. It's just the nature of a 2 stroker and the way they breath. Also the lack of oil in the bearings adds to it alot. Remember that a 2 stroker simply oils the bearings by the residual oil in the crankcase that comes out of the fuel whereas a car engine has oil pressure in between the bearings and the crankshaft. 2 stroke engines bearings are designed to last, but not neccesarily to be quiet doing it. My old 81 150 MERC sounds like a top fueler with a mis-fire when it idles.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#8
06-01-2009, 10:43 AM
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My father in law has a 112 Johnson and it sounds like a sewing machine at idle.
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#9
06-01-2009, 12:03 PM
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Quote:
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#10
06-03-2009, 04:11 PM
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So are crossflow's a little quieter/smoother than loopers?
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