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Old 30 May 2006, 06:11   #1
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Country: Ireland
Town: Co Clare
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What type sparkplugs

I bought a set of replacement spark plugs for a 96 Mariner 60hp 2 stroke . The ones I got were Champion QL87YC . The one I took out of the Mariner were NGK R BUZ8H . They are two different designs of plugs . The Champions are what I would expect to see in a car and are also 5mm longer than the NGKís . The NGK plugs donít have the curved ground piece at the end ( which the spark jumps across ) . Not sure I am explaining this too well but somebody may have an idea . I didnít try the Champions as I was concerned that they were too long . Any idea what is recommended for this outboard ?.

Thanks
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Old 04 June 2006, 18:18   #2
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Country: UK - England
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Engine: Mercury
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Hello,

I would stick with the NGK, The plugs that you had fitted (BUZ8H) are correct. I have looked at the Service bullitens for your engine and that plug now superseeds to part number BPZ8H-N-10 (NGK Part number)

Hope this helps.
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Old 04 June 2006, 20:08   #3
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Country: UK - England
Boat name: Seashell
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I used to have a 96 40 Mariner 2-stroke (similar to yours only has one less cylinder) and used to run that with NGKs....
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Old 06 June 2006, 05:04   #4
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Put in a set of NGK R BUZ8H . Made all the differance . Much easier to start from cold . The old set must have been worn although they didn't look it .
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