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Old 20 March 2015, 11:40   #21
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I'm really not too sure. I have some experience with those engines but we had 3 of them and just mixed and matched parts. Some parts lists here - 1988 Mariner Outboard Parts

Not sure if it's jetting, a restrictor plate or a different carb altogether. This guy reckons just get the carb off a 25hp - Mercury 20 hp conversion to 25 hp Can it be done
Hi Roflhat

That's what I was thinking a carb change, I was wondering whether phoning my local mariner service shop to see if they would be able to tell me what was needed to bring the hp up.would they be reluctant to tell me as they would not be gaining any money for the information.

I looked at the links you posted Couldn't work the parts manual came up eh, etc models etc, my engine is an XD I think.
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Old 22 March 2015, 00:02   #22
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Went from 26 to 30 knots with my new prop,
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Old 22 March 2015, 07:01   #23
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Went from 26 to 30 knots with my new prop,
That's a good improvement,I would be happy with your lower figure.All depends on wot revs.What boat do you have !
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Old 22 March 2015, 07:07   #24
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Hi Roflhat

That's what I was thinking a carb change, I was wondering whether phoning my local mariner service shop to see if they would be able to tell me what was needed to bring the hp up.would they be reluctant to tell me as they would not be gaining any money for the information.

I looked at the links you posted Couldn't work the parts manual came up eh, etc models etc, my engine is an XD I think.
Hi all

Getting the hang of the parts manual now carb change is part of the upgrade,need to look more closely on a computer not on my phone really.Also I am having a problem as to which model my engine is.I searched using the serial number.
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Old 22 March 2015, 14:56   #25
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3.2mtr aquapro with alloy floor
Shallow v
1998 25hp evenrude


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Old 23 March 2015, 07:24   #26
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Hi Rusty

How do find the transom with the extra weight and power is it holding together or have you made transom supports.As it's over powered.
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Old 24 March 2015, 01:36   #27
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It's rated for 25hp and I'm sure it will Handel a 30/35 hp no probs...kiwi built brother tuff as. I take this out to the islands to surf when the swell is 2-3mtrs and have no probs dodging and jumping the odd wave
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Old 24 March 2015, 04:39   #28
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It's rated for 25hp and I'm sure it will Handel a 30/35 hp no probs...kiwi built brother tuff as. I take this out to the islands to surf when the swell is 2-3mtrs and have no probs dodging and jumping the odd wave

Hi Rusty


My apologies, any video's to show us.Do they sell them over here sounds right up my ally.What model is it.Is it a rib or sib.
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Old 25 March 2015, 02:43   #29
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We kinda getting off topic, but yea I will pop some pics up of how the transom is built over the weekend and if I get a chance will take some footage as well, only have footage of surfing the spots not crossing our bar to get their. I'm sure Aquapro export their product but would not know to what country's
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Old 08 April 2015, 16:09   #30
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Hi all

Ventured out to Teignmouth Sunday only to be disappointed with a sick engine.First impressions of the prop was good,better hole shot and better mid range didn't get and stats for you guys as the oars had to be used.I will sort my sick baby and try the test again.
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