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Old 14 August 2013, 19:01   #81
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Are you sure the gauge is set up in knots?
I was told by the owner that it was set to knots and as far as I was aware this could not be changed. I have just looked at the manual however and it appears you can swap between MPH,KMH and knots. It would make more sense if that 50 number is in mph rather than knots, as that gives 43 knots which makes sense with what DHD's number are. Bearing in mind three up. I did glance at the kph readout on the GPS a couple of times and I definitely saw 80 flick up a couple of times and that is also 43 knots.

Shame!
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Old 14 August 2013, 19:26   #82
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Killcord positioning is OK, he did seem a little surprised when we turned up in lifejackets and then I proceeded to put the kill cord on..
Let's hope the owner finds it next time out. Kitting out on a budget is always hard as you have to sacrifice things you later wish you hadn't but such is life. At the end of the day if the owner is happy that's all that counts.

The max rpm on an opti 150 is 5,750

www.BoatsandOutboards4Sale.co.uk
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Old 14 August 2013, 19:47   #83
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Max recommended RPM is 5250-5750

Tried a few props onmine & can't get it over 5200rpm.
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Old 15 August 2013, 04:10   #84
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Max recommended RPM is 5250-5750

Tried a few props onmine & can't get it over 5200rpm.
Hmm. Well with you being on 21" a 19" should be about right. I will try and get him a 17" to borrow from somewhere, just to see if it brings the revs up. It really doesn't sound right during the transition phase, lugging away. Perhaps it's just the shoddy opti technology
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Old 15 August 2013, 04:18   #85
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Quote:
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Are you sure the gauge is set up in knots?
I'd put Money on it!
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Old 15 August 2013, 08:01   #86
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Speed should be in mph.
Theoritical speed (knots) = rpm x propeller pitch x 60 x 0.0254 / gear ratio / 1852 meaning that your theoritical speed is 43.47 knots or 80.5 kmh or 50 mph.
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Old 15 August 2013, 14:06   #87
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Hmm. Well with you being on 21" a 19" should be about right. I will try and get him a 17" to borrow from somewhere, just to see if it brings the revs up. It really doesn't sound right during the transition phase, lugging away. Perhaps it's just the shoddy opti technology
No lugging with mine - revs cleanly from idle but won't go past 5200ish rpm.
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Old 15 August 2013, 14:15   #88
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No lugging with mine - revs cleanly from idle but won't go past 5200ish rpm.
Also, you're getting 46knts+ which is top bollox for a 5.8.
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Old 15 August 2013, 14:35   #89
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Also, you're getting 46knts+ which is top bollox for a 5.8.
Why???
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Old 15 August 2013, 14:54   #90
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Why???
'Coz the foofoo valve blows if you go any faster.
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