Here Is One Guy You Need to Know Better! Your Spark Plug... - Honda ATV Forum
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post #1 of 9 (permalink) Old 10-14-2014, 01:38 PM Thread Starter
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Here Is One Guy You Need to Know Better! Your Spark Plug...

Most people don't realize this, but if your machine is not running at it's peak, quite possibly the best diagnosis tool available you already have. Your spark plug!

Learning how to read your spark plug can tell you a ton of information about whats wrong with your machine and quite possibly what to do and how to get your machine running at it's best.

The attached images are excellent guides to learning how to read spark plugs.

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>>Complete Repair Fundamentals For Beginners

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post #2 of 9 (permalink) Old 10-14-2014, 03:39 PM
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Wow! Thanks a lot Pleasant Hill. It looks like we could all use this information!
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post #3 of 9 (permalink) Old 10-25-2014, 11:37 PM
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I have seen plenty of spark plug guides but this is by far the best one.
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post #4 of 9 (permalink) Old 10-26-2014, 12:55 AM
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Thank you!

1985 Honda Foutrax 250 TRX (PARTS-MANUAL-OWNERS MANUAL)
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post #5 of 9 (permalink) Old 10-28-2014, 06:30 PM
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Awesome guide. I'll definitely be using this one soon

-1986 Honda FourTrax Trx200SX
-2005 Honda Rincon 650 (dads)
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post #6 of 9 (permalink) Old 11-15-2014, 12:01 PM
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Do you know where a person could get that guide? I could print it off but printers don't get the colors right sometimes.
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post #7 of 9 (permalink) Old 11-15-2014, 12:11 PM
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I would appreciate having a good copy, haven't had good luck printing these types of charts. Would be a great resource for students. Thanks
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post #8 of 9 (permalink) Old 11-17-2014, 06:45 AM Thread Starter
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If you want to print these and get good quality, I would save them to a thumb drive and take them somewhere and print a photo quality image on photo paper, unless you have a printer that will print to photo paper. I have an HP 9800 and can print up to 17" photos. I wouldn't recommend printing to regular paper if you are looking for best quality.

The images in the original post are quite large, and will print very nicely to photo paper, even full page images.

Everybody's got one killer story. It doesn't take talent to tell that story, it just takes experience.


>>Complete Repair Fundamentals For Beginners

Ignition Trouble Shooting Checklist.
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post #9 of 9 (permalink) Old 08-03-2016, 09:26 PM
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Great stickie! Having problem setting idle and cold starting. Plug is sooty and X24ES-U. Manual sez should be resistor plug X24ESR-U. Think this is the problem? Thots?
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