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Which spark plugs?

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Old May 26, 2009 | 09:24 AM
  #21  
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Originally Posted by Hammer107
Tuning via a spark plug is like pulling the positive cable off a battery to see if an alternator works.

It used to work. It doesn't any more.
So how to you guy's tune an old carb set-up? I was under the impression that the plug's would give you a good indication of how the motor was running? Anyway, my plug's look like the motor's running a little too rich, and it is getting a little puff of black smoke when I get on it. I have an S&S carb, the bike ran awesome when I put it away last year, now where do I start to tune this thing in again? I had a pretty good procedure and explanation of how the carb work's but I can't find it.
 
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Old May 26, 2009 | 04:02 PM
  #22  
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Old Jun 27, 2009 | 02:10 PM
  #23  
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Default carb prob

i have a KEIHIN CARBURETOR i think..when i start it gas blows out front of carb.it runs putt putt flame putt putt flame then i give it throttle and gas blowes out carb and drowns it out
any one know wot to do
 
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Old Jan 20, 2022 | 02:31 PM
  #24  
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Default Spark Plugs cont’d

I saw on a video that HD spark plugs are made by Champion. Is that true? What plugs have you had the best performance from? Thanks!
 
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Old Jan 20, 2022 | 03:22 PM
  #25  
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Ok now let's change to thread to what oil to use.
 
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Old May 19, 2022 | 04:26 PM
  #26  
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Default What do these plugs tell you?

Left is rear cyl, right is front.

New to me 02 electraglide, 111 S&S.
 
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