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Old 31 July 2015, 07:02   #1
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Country: UK - Wales
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Boat name: yam 400 s
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inflatable Keel

Hi

I have searched threads look for an answer, however i have a YAM 400 S boat with a Yamaha 25 BHP two stroke and have no idea how much to inflate the keel by ?

should it be as hard or harder than the tubes ?
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Old 31 July 2015, 07:08   #2
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Very small capacity compared to tubes so go easy but yes as per tubes. Say 3 to 3.5psi.
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Old 31 July 2015, 07:59   #3
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Hi

For my Honwave it is .35 Bar most are the same.
Happy Boating.

And yes harder than tubes.
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Old 31 July 2015, 10:31   #4
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Yam is similar to my Honwave which is .25 bar in the tubes and .35 bar in the keel.
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Old 01 August 2015, 05:14   #5
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On my yam 3.1 sti its 3.6 psi
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Old 03 August 2015, 06:51   #6
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ok thanks guys

i tried a pump on it over the weekend and its got so much air in the keel the pump couldn't push any more in !
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Old 03 August 2015, 07:12   #7
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Quote:
Originally Posted by Andy54 View Post
ok thanks guys

i tried a pump on it over the weekend and its got so much air in the keel the pump couldn't push any more in !
Hi Andy

Did you manage to get the correct presume .35.If using a foot pump it is hard unless you have a bit of weight.My friend at 11 stone has no chance of inflating the keel,I have to use all my weight and am a big unit.You may need a different pump.
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Old 03 August 2015, 08:59   #8
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Hi Andy, just to clarify you are talking about the long sausage down the middle or the floor?
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Old 03 August 2015, 09:00   #9
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If it's the floor, then you really need a hp bravo pump
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Old 03 August 2015, 12:06   #10
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Hi Andy54. I had the same issue with the foot pump supplied with my boat so I bought a Quicksilver hand pump from Pacer Marine (via eBay). Has a pressure gauge and adapters to suit different boats. Only around 25 but enabled me to put the extra pressure needed for the keel. Worked a treat.
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