inflatable Keel

Andy54 · 31 July 2015, 12:02

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 ?

Max... · 31 July 2015, 12:08

Very small capacity compared to tubes so go easy but yes as per tubes. Say 3 to 3.5psi.

dave3235 · 31 July 2015, 12:59

Hi

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

And yes harder than tubes.

kaman · 31 July 2015, 15:31

Yam is similar to my Honwave which is .25 bar in the tubes and .35 bar in the keel.

Mickhitchuk · 01 August 2015, 10:14

On my yam 3.1 sti its 3.6 psi

Andy54 · 03 August 2015, 11:51

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 !

dave3235 · 03 August 2015, 12:12

Quote:

Originally Posted by Andy54

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.

Mickhitchuk · 03 August 2015, 13:59

Hi Andy, just to clarify you are talking about the long sausage down the middle or the floor?

Mickhitchuk · 03 August 2015, 14:00

If it's the floor, then you really need a hp bravo pump

chriswood · 03 August 2015, 17:06

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.

Fenlander · 04 August 2015, 09:11

>>> 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.

The best LP footpumps I've ever used are the old Avon mahogany and hypalon ones... lots of air per stroke and get to pressure easily.

I've needed ones with an HP facility for some years now though and last year bought a new Bravo 9. This has proved to be one of the best modern pumps... so good I rarely bothered with the noise of my Bravo elec pump on this year's holiday. The Bravo 9 has a removable plug you pop out as the pump starts to resist and that "gears" down the strokes so they give less air volume but its 10x easier.