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#1
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i was wondering the max rpm's for a 1986 rude 120 and if anyone ever had this on there boat how it did
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I have a 1987 V20 Steplift with a 1987 johnson 140 2 stroke |
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#2
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There rated up to 6000 RPM's, but I would try and prop it to 5500-5600 WOT with a moderate load. It uses small carbs that will run out of steam pretty early on. Same engine as a 140 with a differrent exhaust tuner and carbs.
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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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#3
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What size prop do you think I should use..... Do you think the step lift will have a problem getting on plane with the 120
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I have a 1987 V20 Steplift with a 1987 johnson 140 2 stroke |
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#4
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The 120 will have NO problems plaining out a V-20 if propped correctly. I would say a 15 pitch stainless prop in a 13 1/2" diameter would do the job nicely for a starter, but you may end up having it repitched to a 16(I think the 17 would make it struggle to plane though).
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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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#5
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Keep...if you need a prop I think I have a 15 and a 17 lying around in Alum. Would be willing to lend them to you for testing.
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer 1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer 1996 V21 w/1993 200HP Mercury on a Shoreline Trailer All towed by a 5.7L Hemi Durango. If God didn't have a purpose for us we wouldn't be here, so Live simply, Love generously, Care deeply, Speak kindly. (Leave the rest to God) ![]() Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless. |
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#6
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the motor has a prop on it i wanted to see what will be the best for that motor because i feel like a 120 might be underpowered i appreciate it thow. i dont get alot of time to take the boat out the army keeps me busy but when i do i want to enjoy it and not worry about anything
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I have a 1987 V20 Steplift with a 1987 johnson 140 2 stroke |
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