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Old 13-09-2013, 06:55 PM   #1
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Country: Guernsey
Occupation: Postie
Interests: Heavy Heavy Metal
Boat name: Slayer II, Slayer, Pen15
Boat make: Phantom 19G-R, Bernico F2 Extreme, Ring 15
Engines: Evinrude 115HO, Yam 90
Cruising area: Channel Islands

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Yam 90 oil and revs

Just picked up a little Ring 15 with a 90 yam, what mix should I be running and what is a 'safe' rpm to aim for when mucking about with props?

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Old 13-09-2013, 08:32 PM   #2
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Country: Netherlands
Location: Westcoast
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Interests: Marshan Ring Phantom
Boat name: Blue Streak
Boat make: Marshan 18
Engines: Mercury V200 Mercury XR10

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50:1 rpm 5000-5500 rpm
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Old 14-09-2013, 10:53 AM   #3
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Hi Paul, same as schim...........Have always run at 50-1 prop we use gives us 5000-5500 . Never missed a beat!
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Old 14-09-2013, 12:28 PM   #4
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Country: Guernsey
Occupation: Postie
Interests: Heavy Heavy Metal
Boat name: Slayer II, Slayer, Pen15
Boat make: Phantom 19G-R, Bernico F2 Extreme, Ring 15
Engines: Evinrude 115HO, Yam 90
Cruising area: Channel Islands

Join Date: Aug 2009
Posts: 1,457
Quote:
Originally Posted by Blue mist View Post
Hi Paul, same as schim...........Have always run at 50-1 prop we use gives us 5000-5500 . Never missed a beat!
Awesome cheers, the old owner ran 50:1, just wanted to check
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