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10 January 2013, 09:40
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#1
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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Yamaha 5hp Reed Valve (1980s)
Wanted 5hp Reed Valve for a 1980s Yamaha 2 stroke outboard. It has the blue casing with stripes which I think is mid to late 80s.
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12 January 2013, 20:22
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#2
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Member
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
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I have an old yamaha 5hp powerhead, I have no idea if its the same but is the same vitage as this Mariner.
Scrapping Yamaha/Mariner 4/5hp 2 stroke outboard engines | eBay
pm me if you think it might work.
edit - just checked it and its a 4HP, think they are the same but let me know.
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13 January 2013, 14:16
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#3
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Member
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
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A few pics of my old engine
the serial number
Pics of the reed block
I have no idea if it is compatible but maybe others may, let me know if of any use to you.
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13 January 2013, 14:44
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#4
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Member
Country: UK - Scotland
Town: wormit
Boat name: lots of them
Make: various
Length: no boat
Engine: all types
Join Date: Dec 2004
Posts: 633
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Its the same part on 4 and 5hp.
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17 January 2013, 09:25
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#5
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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I am willing to give it a shot! Just put the 5hp up for sale but how much do you want for it and postage?
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17 January 2013, 11:16
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#6
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Member
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
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£20 any good?
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19 January 2013, 20:56
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#7
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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It may well be. I am going to strip my one down to show the part as you have photographed it. Please hang on to the part until I can confirm if that's ok?
Many thanks
Andrew
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19 January 2013, 22:10
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#8
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Member
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
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No worries, pretty sure mines all complete, its a long shaft minus a gearbox. God compression etc. so should have some good bits on it.
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24 January 2013, 17:19
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#9
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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I have not forgotton you - I am really busy at work and doing rya courses so had no chance to strip it down yet - I will get round to it. Thanks
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24 January 2013, 18:06
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#10
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Member
Country: Ireland
Town: Bangor
Boat name: Lencraft 4.8m
Make: Lencraft
Length: 4m +
Engine: DT55HP Suzuki
Join Date: Jul 2011
Posts: 469
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No rush!
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28 January 2013, 11:35
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#11
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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Struggling to find the valve! I have removed the carb but can't see the reed valve!
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28 January 2013, 11:37
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#12
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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Quote:
Originally Posted by ajstars
struggling to find the valve! I have removed the carb but can't see the reed valve!
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28 January 2013, 17:35
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#13
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Member
Country: UK - Scotland
Town: wormit
Boat name: lots of them
Make: various
Length: no boat
Engine: all types
Join Date: Dec 2004
Posts: 633
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Em that's because you have an old air cooled 5B.
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28 January 2013, 17:38
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#14
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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Oh so what could be the problem - I was told it was the reed valve! It was coughing out of the carb apparently.
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28 January 2013, 17:48
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#15
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Member
Country: UK - Scotland
Town: Fort William
Make: Ribcraft 585
Length: 5m +
Engine: Yamaha F115
Join Date: Mar 2012
Posts: 2,920
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Quote:
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Originally Posted by ajstars
Oh so what could be the problem - I was told it was the reed valve! It was coughing out of the carb apparently.
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I am not familiar with this engine but generally a cough or sneeze is caused by bad timing or running too lean.
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There is a place on this planet for all of Gods creatures.........right next to my tatties and gravy.
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28 January 2013, 17:50
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#16
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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I would have thought there is more to it than not. The engineer spent an hour on it! I wonder if the compression had gone or something. Hohum will have to strip it down but I bet you can't get parts for it any more.
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28 January 2013, 18:10
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#17
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Member
Country: UK - Scotland
Town: wormit
Boat name: lots of them
Make: various
Length: no boat
Engine: all types
Join Date: Dec 2004
Posts: 633
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You will have no problem getting parts for it. Is the plastic air box still there?
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28 January 2013, 18:13
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#18
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Member
Country: UK - England
Town: Horley
Boat name: Pending!
Make: Cobra
Length: 7m +
Engine: 225hp Outboard
Join Date: Jul 2012
Posts: 401
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Yes it's all complete and otherwise in lovely condition
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