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25-03-2013, 03:40 PM
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#1
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Registered User
Country: holland
Location: lelystad
Occupation: making art
Interests: boats,cars,motorcycles,greyhounds
Boat name: suck gass and haul ass
Boat make: cougar 27 offshore class 2
Engines: twin johnson v6
Cruising area: wolderwijd/veluwemeer/amsterdam rijnkanaal/utrecht
Join Date: Apr 2012
Location: lelystad
Posts: 71
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problem with johnson ocean runners 200
i have a problem its about johnson 200hp set ocean runners
the engines accelerate to 4000rpm and then drop down to 3200 and keep going up and down to 3800rpm but they wont exceed it already checked the cdi could it be a fuell problem or an stator problem?
please help.
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25-03-2013, 03:47 PM
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#2
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Registered User
Country: England
Location: Newport Isle of Wight
Cruising area: solent
Join Date: Nov 2007
Location: Newport Isle of Wight
Posts: 308
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Quote:
Originally Posted by lucasv
i have a problem its about johnson 200hp set ocean runners
the engines accelerate to 4000rpm and then drop down to 3200 and keep going up and down to 3800rpm but they wont exceed it already checked the cdi could it be a fuell problem or an stator problem?
please help.
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Sounds like fuel starvation.
Fuel vented ok?
Fuel lines kinked?
Fuel pump?
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25-03-2013, 06:43 PM
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#3
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Registered User
Country: Guernsey Channel Isles
Location: West Coast
Occupation: Hotelier
Interests: Powerboat racing
Boat name: Vodkatini,Cap Camarat,Easy RiderSuper Rider & Hirrondelle
Boat make: Phantom 21,Jeaneau 925 Avenger19.Lorne Campbell Slipstream Tremlett 21.Tigershark 21
Engines: Volvo 5 litre,Merc 115 Tower,Twin 250 Suzukis and 145 Mercruiser LX
Cruising area: Channel Islands and French coast
Join Date: Jan 2009
Location: West Coast
Posts: 612
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Stale fuel ?
Fouled plug
New fuel filter
When did you use it last ?
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Guernsey - The home of offshore powerboat racing
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26-03-2013, 03:10 AM
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#4
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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If it was an EFI I'd say VST pump or filter screen! Check your fuel pump
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26-03-2013, 03:13 AM
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#5
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Is this a pair of engines doing the same thing? Do they both draw off the same tank? If so it could be dirt in the tank blocking the stand pipe.
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24-04-2013, 12:44 AM
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#6
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Registered User
Country: holland
Location: lelystad
Occupation: making art
Interests: boats,cars,motorcycles,greyhounds
Boat name: suck gass and haul ass
Boat make: cougar 27 offshore class 2
Engines: twin johnson v6
Cruising area: wolderwijd/veluwemeer/amsterdam rijnkanaal/utrecht
Join Date: Apr 2012
Location: lelystad
Posts: 71
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checked everything
one of the engines was having more problems than the other one of the wires to the ignition coil was half stripped causing a leak to bare metall it is now solved.
the other engine had some bad connections on its powerpack so i will replace it and will also throw in a new stator cuz it melted
will be running again soon.
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there is no such thing as overpowered
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24-04-2013, 08:42 AM
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#7
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Registered User
Country: UK
Location: london
Occupation: Powerboat Skipper
Interests: Boats , bikes!
Boat name: Renegade
Boat make: GPV-RENEGADE
Engines: 150 HO etec
Cruising area: Thames, south coast, anywhere!
Join Date: Dec 2008
Location: london
Posts: 2,330
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If both are doing it and its not a fuel problem i would check earthing. Run the engines on seperate auxillary tanks to eliminate other issues.
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