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Norge 8V plug fouling

Discussion in 'Chat & Tech Info' started by Mattbro, Aug 21, 2018.

  1. Mattbro

    Mattbro Just got it firing! GT Contributor

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    I recently purchased a 2015 Norge 8V. At the time of purchase while the mechanic was test riding the bike the left cylinder stopped firing. The plug was changed correcting the problem. I passed it of as "bad gas" since it had been at the dealer a long time. Fast forward 3 months and 2500 miles and the same cylinder stopped firing and the plug appears fouled. Up to this point, the bike ran great getting 47-50 mpg. Tune up was performed @ 1700 miles so I am surprised it would be a tuning problem already. Thank you in advance .
     
  2. john zibell

    john zibell Moderator Staff Member GT Famiglia

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  3. Kubbie

    Kubbie Tuned and Synch'ed

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    I was thinking plug wire or possible coil issues.

    Mine was running fine for almost 200 miles on a non stop ride, Stopped for a potty break, came out. started the bike and it started missing on the (I found out later) right cylinder. Stuck my ear down near the head and you could hear it arcing to the valve cover. Plug was a little sootie but not bad.

    Warranty replaced the plug and wire.
     
  4. Duane Beery

    Duane Beery Just got it firing!

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    Did you check the plugs for color? Are they black with soot? Oily? Completely white? That might help you get started. If oily probably bad news. If black running extremely rich, maybe O2 sensor. Completely white running lean maybe plugged up injector or air leak somewhere. There are vids on youtube on cleaning injectors and finding airleaks. Good luck
     
  5. moszkow

    moszkow Just got it firing!

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    Regarding your plugs fouling, my own experience of cylinders misfiring or totally shutting off on my Norge 8v, the culprit has been the plug wires. The passage they pass through on top of the valve cover is enclosed which creates tremendous heat. I was replacing these wires every 5k miles of riding. Finally, I came up with a solution. Every new plug wire that I purchased, I would tightly wrap it with electrical tape (with slight overlap). Particularly the area near the cap where it plunges deep into the spark plug cavity. Since then, I've had no issues of the plug wires fouling. The life time of the plug wires almost doubled. This might not be your situation but it's possible.

    Leon
     

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