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Old 02 August 2013, 14:28   #1
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Country: UK - England
Town: Northumberland
Boat name: Northern Storm
Make: North Diver?
Length: 4m +
Engine: Yamaha 90 Autolube
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Posts: 546
90hp yamaha and trottle unit

Need some help in working out the mess my brother left me in, I work offshore and been refurbing a rib we bought , it's finished apart from throttle unit but my brother has not taken pics or marked up where the wires go from the trim guage go yellow green and black, they were in mess on old console so he disconnected them off throttle unit to feed them out console,
Problem now I have is there is 2 loose yellow and 2 loose black in console so I'm lost as to which ones they connect too?
Will get pic up 1st thing in morning
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Old 02 August 2013, 16:02   #2
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Country: UK - England
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Boat name: Northern Storm
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Few pics of the mess
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Old 02 August 2013, 19:01   #3
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Country: UK - England
Town: The wilds of Wiltshire
Boat name: WhiteNoise/Dominator
Make: Ballistic 7.8/SR5.4
Length: 7m +
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Wiring diagramme here:-

Wiring diagram/Manual for Yamaha 703 Control
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Old 02 August 2013, 19:08   #4
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Country: UK - Scotland
Town: Aberdeenshire
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Make: Ribcraft 4.8m
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Have you stopped slapping your brother about the head yet?

Looks like you have a Yammie 703 PTT unit there. It also looks like it needs a thorough overhaul! I'd mark existing wires with coloured insulation tape and indelible marker and strip the whole lot down and clean it up.

Use a marine grease such as Duckhams yellow grease on the nylon bush on the throttle lever and rebuilt it. The bullet connectors can use a light sand with fine-grade 3M paper and reconnect. Any worn or loose spade connectors, then replace, solder and shrink wrap with a protective sleeve.

Regards wiring, try this illustration. The green wire is your tacho or pulse from main engine, black is ground, and yellow is ignition supply to gauges.
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Old 02 August 2013, 19:12   #5
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Country: UK - England
Town: Northumberland
Boat name: Northern Storm
Make: North Diver?
Length: 4m +
Engine: Yamaha 90 Autolube
MMSI: 235096344
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Needs more than a slap mate, gutted as he's just left it uncovered while grinding deck too, cheers for drawings but I'm novice on wiring diagrams , ok on practical fitting side once got an idea n been shown etc
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Old 03 August 2013, 16:42   #6
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Country: UK - England
Town: Northumberland
Boat name: Northern Storm
Make: North Diver?
Length: 4m +
Engine: Yamaha 90 Autolube
MMSI: 235096344
Join Date: Aug 2012
Posts: 546
cheers fellas tried piecing it back together today hope its right when connect power up in few days
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