ski ray with 1992 magnum 350 5.l wiring diagram

badger32

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Aug 31, 2011
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just bought a 1992 ski ray with a magnum 350 5.7l need help with wiring an ignition switch and delco est distributor kit,

also any way of finding out what switches do what on dash as all wrighting has worn off

i also need two garboard plugs in the hull as the rear one has corroded and the centre plug is missing any ideas which ones i will need

many thanks
anthony
 

achris

More fish than mountain goat
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May 19, 2004
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27,468
Re: ski ray with 1992 magnum 350 5.l wiring diagram

just bought a 1992 ski ray with a magnum 350 5.7l need help with wiring an ignition switch and delco est distributor kit,

As that's not genuine, try Delco.

badger32 said:
also any way of finding out what switches do what on dash as all [size=+1]writing[/size] has worn off

Unless a wiring diagram has been supplied with the boat there's 2 ways of doing it. 1) turn the switch on and see what works. 2) follow each wire and find out what it goes to.

badger32 said:
i also need two garboard plugs in the hull as the rear one has corroded and the centre plug is missing any ideas which ones i will need

Give me second, I'll go pull out my special crystal ball... Ok, go it... You need a blue one and a red one. :facepalm:
 

badger32

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

ok sensible answers please, done some searching and reasearch

for the ignition switch i have as followes so is this correct how to wire it up
red/purple battery feed to switch
orange? is this attached to accessory terminal
2 purple to accesory terminals
yellow/red stripe crank wirt to start terminal

i am using a universal switch labled b+ acc park and start

am unsure of the orange wire
cheers for advice
anth
 

Don S

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

First of all, you need to split your post up into three posts and put them in the correct forums.
The engine wiring and ignition switch wiring is fine here, but the helm switches should be in the electrical forum, there are basic boat wiring diagrams to help you there. The garboard plug question should be in the Boat topics (not engines) forum.

Now, your ignition switch should have three termainals Off, Start, and Ignition. Have no clue what Park is all about.
Red goes to (B) battery terminal, a yellow/red stripe wire goes to the (S) start terminal, and a purple wire goes to the (I) Ignition terminal Nothing should be attached to the accessory terminal of the switch.

The EST distributor was never used on Mercruisers carbed V8 engines, they used Thunderbolt IV on the 92's. Wiring can be changed, do you have an Alpha or Bravo drives? Makes a big difference.
 

Don S

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

With your wires colors.

Red/purple to B+, both purples go to the I terminal (I assume this is your park terminal????????) the orange wire should go to a separate fuse panel for accessories, NOT on the ignition switch.
 

badger32

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

With your wires colors.

Red/purple to B+, both purples go to the I terminal (I assume this is your park terminal????????) the orange wire should go to a separate fuse panel for accessories, NOT on the ignition switch.

Sorry about mixing posts
Accessory must be the I first turn on switch gives continuity on b+ and acc. Think it must be an automotive switch,
Is the orange wire not the feed for the accesories from the switch?

Need to find where the transom serial number is,
 

Don S

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

Boats DO NOT use accessories from the switch. The ignition switch is used for ignition and starting only. Accessories all come off a separate fuse panel.
That orange wire isn't even in the engine wiring harness. It's a separate wire for accessories put there by the boat manufacturer. It's normally fused with a 20 or 30 fuse at the battery or battery switch.

Get the right switch. 3 position is all you need. http://www.iboats.com/Boat-Parts-Ac..._category.f--searched.1--**********.449395829
 

badger32

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

hi don the serial no. on transom is 52083 velvet drive 10-17-004
 

badger32

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Re: ski ray with 1992 magnum 350 5.l wiring diagram

don when i set the timing will this be pre vortec?
 
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