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#1
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Question,
I pull my plugs for a check and here is the results. Plugs pictured are left to right 1234 , One and Two clearly shows some excessive oiling, I am not sure about three and four. These are NGK Plugs gap at .40. In my opinion I will not use em again , I notice they run COLD at WOT around max 130 degrees. Reason for the oil on the plugs ? Ferm and I discuss a while back and he recommend I go Champion Ql77jc4 gap at .35 I have since installed the champions. I will post the results after a couple of runs. In the mean time any thoughts on the condition of the plugs? Should I be worried ? ![]() ![]()
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#2
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What had you been doing with the engine prior to pulling these? If idling and no running above 1500-2000 then #3 concerns me the most followed by #2. A looper should be almost black and slightly wet at the plugs from idling, and burn a brown color when running along. How many hours were on them? The whiteish on #3 would concern me as that is signs of a lean looper. And a lean looper will run like a scalded dog, but not for long. Run the champions and check them after a few mid range runs. Also try running her at 4500 for about a minute and shut her off, then go back and pull the plugs and check em. Cruising and top end is where jetting is CRUCIAL on a looper, idle is hard to judge as a looper is pretty ineffecient below 2500 or so RPM's. The older engines actually do better at idle, but from cruise on up a looper is the winner.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD ![]() AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 |
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#3
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Ferm,
My second to last run was WOT for about 30 plus minutes then idle to port about a 1/4 mile, my last run was 8 on board no WOT just maybe 4000 for 5 minutes then idle 1/4 mile to port. I can literally smell and sense the engine loading up during the idle to port both times if that helps. I will give your test a try and post the results . |
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#4
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I took the boat out all seems well so far with the new plugs, I did the 4500 RPM test like Ferm mentioned.
However on my way back to the Dock in a very ugly way the engine died completely. I did a spark test no spark, looks like I fried the pack. Question may be silly however have anyone see this before ? |
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#5
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It happens sometimes. You have to remember that the pack could be 20+ years old and it may just have been it's time. Before you condemn the pack though, unhook the ignition klill wire from it and see if your spark comes back.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD ![]() AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 |
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#6
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Ferm,
Is that the Black/Yellow wire ? Also its a new pack I installed last year, however it was the pack on there with the bad trigger/stator ! Last edited by nymack66; 05-01-2009 at 12:18 PM. Reason: Added Info |
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