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#1
02-08-2011, 07:56 PM
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18' Prop help needed and Intro.
Hi to All-
Just joined this week. (Can you tell I've got cabin fever??) I like winter and snow, but not this year. Bought my 1989 18' last fall. It's a beauty. I'm the third owner and the guy I bought it from was the first to put bottom paint on. It has the original Tracker Evinrude 110 (90 degree)that runs sweet. It starts right up and idles smooth. Howevr, the idle rpm according to the tach , is almost 1,500 in neutral. It does'nt sound like it's that high. I'll have to verify the tach this spring. I only had chance to take it out once last year and noticed my revs were high. In fact it appears that it's so under proped I don't think I can just get a size or two to correct. (Plenty of throttle left and approaching 6K)Prop looks new so I gather the previous owner put it on. (13-1/4 x 17- Alu. -3 blade)My question is: Does anyone have a similar setup so I can get a starting point for the right prop? Don't have the bucks to be buying props left and right. Could my tach be off that much? I also plan on going to a 4 blade prop. Many thanks in advance. _Alex 
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#2
02-08-2011, 11:38 PM
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Re: 18' Prop help needed and Intro.
Yes, your tach can be off that much. have that checked before messing with props. 17"P should be close.
__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes. Fr. Frank says: Jesus liked fishing, too. He even walked on water to get to the boat! Currently without a SeaCraft  (2) Pompano 12' fishing kayaks '73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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#3
02-08-2011, 11:53 PM
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Re: 18' Prop help needed and Intro.
Like Fr Frank suggested tach could be toast or of poor quality. You've probably already done it but check & clean all connections. Also, some tachs have a setting switch or different wiring posts for the number of cylinders of the engine - double check the back housing for such and confirm that it is wired for 4 cyl.
And post some pics of your new SC 
__________________
there's no such thing as normal anymore...
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#4
02-09-2011, 02:22 PM
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Re: 18' Prop help needed and Intro.
Quote:
__________________
" I'm the one thats got to die when its time for me to die; so let me live my life, the way I want to". J. M. Hendrix
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#5
02-10-2011, 05:05 PM
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Re: 18' Prop help needed and Intro.
All t5rue on the tach - for props keep an eye out for a Mirage Plus or Stilleto in 17, that should be the prop size
__________________
Any way you measure it - dumbass is expensive
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