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Post by Pete B on Sept 3, 2011 7:57:09 GMT
Hi all. I'm tinkering with a little non running 8 HP mariner outboard. Should I have a spark at both plugs at ignition or does it initially start on one and then plug 2 kicks in once cylinder 1 is fired?
Cheers in advance
Pete
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Post by Purple on Sept 3, 2011 12:40:45 GMT
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Post by codfather11 on Sept 3, 2011 15:59:21 GMT
id have thought there should be a spark on both. try giving the contacts a rub with some fine wet and dry.
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Post by Pete B on Sept 3, 2011 17:49:51 GMT
Cheers Purple & Codfather.
A bit more investigation has led me to realise that I have no power to one of the coils, think I may need a new switch box.
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Post by scotty on Sept 3, 2011 18:25:52 GMT
Check the bullet connectors from the trigger assembly to the switchbox Brown/yellow + brown/white wires If these are ok and you're SURE you're not getting any power to one of the coils then change switchbox  |
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Post by Pete B on Sept 3, 2011 18:40:08 GMT
Check the bullet connectors from the trigger assembly to the switchbox Brown/yellow + brown/white wires If these are ok and you're SURE you're not getting any power to one of the coils then change switchbox Cheers Scotty, Will do. Is it likely to be the switch box rather than anything before it? Ta, Pete |
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Post by scotty on Sept 3, 2011 18:50:11 GMT
well I take it from your initial post that you have a spark on one plug? If so then your stator coils are working so the only thing that could cause 1 plug not to fire is the trigger assembly, so check the connections and if if there ok it must be the switchbox, as long as you sure its not the coils swap the feed wires from the switchbox to the coils round, if the fault transfers then you know both coils are good |
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Post by Pete B on Sept 3, 2011 19:30:43 GMT
well I take it from your initial post that you have a spark on one plug? If so then your stator coils are working so the only thing that could cause 1 plug not to fire is the trigger assembly, so check the connections and if if there ok it must be the switchbox, as long as you sure its not the coils swap the feed wires from the switchbox to the coils round, if the fault transfers then you know both coils are good Yep, I've swapped the feed wires from the switch box to each coil and the problem seems to be with the yellow/green wire . The green/white wire will power both coils when swapped and spark each plug accordingly. I did initially think it was the coil and you supplied me with a 2nd hand spare coil a year or more ago now. Looking likely for switchbox change, do you know of any braking mariner 8's Scotty? |
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Post by scotty on Sept 3, 2011 20:10:38 GMT
you got it  I will have a look and see what i can find next week |
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Post by Pete B on Sept 4, 2011 13:52:56 GMT
Brilliant! cheers mate. Could you also get me the price of a new one if you have chance.
Ta
Pete
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