lt1bird Posted May 8, 2009 Report Share Posted May 8, 2009 I see many articles about plug reading..... Some folks say do not read the white insulator at the top as it means nothing at all... The main jet plug chop is done at the base of the insulator... they say the top flat part on the ring should be colored.....Light color change fully around the flat part on the lip... others say you look only at the flat lip for the color..... Now, Whos correct? my plugs show the flat lip as being only a 1/4 way around has changed color...indicating lean... the whole white insulator is very dark brown all the way down... Rich or lean? Quote Link to comment Share on other sites More sharing options...
lt1bird Posted May 8, 2009 Author Report Share Posted May 8, 2009 No body reads plugs anymore? Guess your all using widbeands? LOL Quote Link to comment Share on other sites More sharing options...
black sunshine Posted May 8, 2009 Report Share Posted May 8, 2009 I think a plug chop procedure is stickied, but you need to sacrifice a new set of plugs for a wide open run to get correct readings. If you run the plugs more than that, you will not be able to read the plugs for main jet sizing. You are cutting the threads off, right? Hope this helps you! Quote Link to comment Share on other sites More sharing options...
lt1bird Posted May 8, 2009 Author Report Share Posted May 8, 2009 There is no refrence to the flat part on the plug in the sticky.... alot of other folks say this location is a good indicator for the idle/slow speed jetting.... Ill get my maginfying glass out and do some plug chops.... I cant see cutting plugs up...that would take some serious effort..... a milling machine would make it easy Quote Link to comment Share on other sites More sharing options...
black sunshine Posted May 8, 2009 Report Share Posted May 8, 2009 (edited) There is no refrence to the flat part on the plug in the sticky.... alot of other folks say this location is a good indicator for the idle/slow speed jetting.... Ill get my maginfying glass out and do some plug chops.... I cant see cutting plugs up...that would take some serious effort..... a milling machine would make it easy Yeah, a new top-end is way less effort, lol. Grinder with a cut-off wheel and a vise. Hacksaw and a vise. Ive done it with a hacksaw and a pair of vise-grips, now THAT took some effort. $3.80 worth of plugs to take the "mystery" out of jetting your mains? Come-on, man! Edited May 8, 2009 by black sunshine Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted May 8, 2009 Report Share Posted May 8, 2009 I see many articles about plug reading..... Some folks say do not read the white insulator at the top as it means nothing at all... The main jet plug chop is done at the base of the insulator... they say the top flat part on the ring should be colored.....Light color change fully around the flat part on the lip... others say you look only at the flat lip for the color..... Now, Whos correct? my plugs show the flat lip as being only a 1/4 way around has changed color...indicating lean... the whole white insulator is very dark brown all the way down... Rich or lean? What octane fuel do you run? Quote Link to comment Share on other sites More sharing options...
R. Rollins Posted May 8, 2009 Report Share Posted May 8, 2009 Hell yea; Put those plugs in a vise and get a 4 1/2 inch hand grinder with a thin metal cutting disc on it and get after it. It takes about two minuites each plug. :biggrin: Quote Link to comment Share on other sites More sharing options...
grizzly700 Posted May 8, 2009 Report Share Posted May 8, 2009 ive only cut one set but i just used a die grinder/cut off wheel and took me like 30 secs. now i just look down inside and i can see enough that i dont feel like cutting them. Quote Link to comment Share on other sites More sharing options...
lt1bird Posted May 8, 2009 Author Report Share Posted May 8, 2009 I know, im just having fun with ya all..... I will use my cutoff wheel and do it once I find a place long enough to do WOT...I cant get to WOT in 6th.....Exactly how long at WOT is relly required?? 10 seconds? 5 seconds? Quote Link to comment Share on other sites More sharing options...
black sunshine Posted May 8, 2009 Report Share Posted May 8, 2009 I'd say an honest 5 seconds Quote Link to comment Share on other sites More sharing options...
sheefreak Posted May 8, 2009 Report Share Posted May 8, 2009 What do you mean by the flat part of the plug? Are you talking the base ring at the bottom of the threads? Alky jetting is usually read this way. Quote Link to comment Share on other sites More sharing options...
robert0762 Posted May 8, 2009 Report Share Posted May 8, 2009 (edited) This is where it talks about reading only the flat surface for jetting. Its got me confused to cause my insulator will be black and I can tell the bike is rich but i dont get good color on the ring???????????banshee jetting faq Edited May 8, 2009 by robert0762 Quote Link to comment Share on other sites More sharing options...
AKheathen Posted May 8, 2009 Report Share Posted May 8, 2009 because there are so many variences in oils and fuel additives, the plug chop, and the ground electrode are the only really reliable indicators to tell that you are dead on, save for checking for metal flecs. the rest of the range is pretty much feel, and symptoms of how it runs Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted May 9, 2009 Report Share Posted May 9, 2009 What octane fuel do you run? Hello? Quote Link to comment Share on other sites More sharing options...
sheefreak Posted May 9, 2009 Report Share Posted May 9, 2009 It sounds to me like the reading of the base ring is explained backwards. When jetting alky, the more the base ring is colored and the more the coloring travels down the threads of the spark plugs, the leaner you are. A rich condition will not even discolor the base, it will look rich. But, I have never read my gas plugs this way, so I can't say for sure. Quote Link to comment Share on other sites More sharing options...
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