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Thread: Spark plugs...
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05-20-2014, 09:23 AM #1
7000 RPM
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Spark plugs...
What plugs for 2005 Merc 300X??? I forgot and don't want to stop at home afetr work...Later, Dave
2018 South Bay 3.0+ Tritoon W/Merc 400R
2019 Wright Perfomance 36, twin Merc 400R's
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05-20-2014, 10:23 PM #2
8000 RPM
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thought them had glow plugs.
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06-20-2014, 09:13 AM #3
5000 RPM
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the champion plugs don't idle as good..but this is da champ numbers.ql77pp. my buddy is running a ngk that's better...ill have the numbers shortly..i just installed these champs and they don't run as good as a ngk I took out...ill be using something else.
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06-20-2014, 11:39 AM #4
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Use the Champs! QL77PP
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06-21-2014, 10:07 AM #5
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I wouldn't put champions in a lawnmower! Ngk br8hs10 gapped to .028
action mobile marine, 772 528 0754, dealers for aces fuel products,wolf efi, pro marine,latham and gaffrig/livorsi. we build gearcases and modify them(3 litre) to ratchet, and powerheads as well. 21 skater/3 litre wolf efi 113 mph the engine build http://www.screamandfly.com/showthre...-3-litre-build
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06-23-2014, 08:56 AM #6
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I'm not a big fan of Champions..but they seem to run well in the 3.0L mercs.
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06-23-2014, 11:06 AM #7
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Ngk will run just as well or better gapped to .028
action mobile marine, 772 528 0754, dealers for aces fuel products,wolf efi, pro marine,latham and gaffrig/livorsi. we build gearcases and modify them(3 litre) to ratchet, and powerheads as well. 21 skater/3 litre wolf efi 113 mph the engine build http://www.screamandfly.com/showthre...-3-litre-build
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06-23-2014, 12:57 PM #8
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Are the NGKs any cheaper?
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06-24-2014, 06:17 AM #9
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Much cheaper around 3$ a plug
action mobile marine, 772 528 0754, dealers for aces fuel products,wolf efi, pro marine,latham and gaffrig/livorsi. we build gearcases and modify them(3 litre) to ratchet, and powerheads as well. 21 skater/3 litre wolf efi 113 mph the engine build http://www.screamandfly.com/showthre...-3-litre-build
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