UK Karting - Notice Board (2-Stroke Karting) : Rotax spark plug colour OK?

Notice Board (2-Stroke Karting)

Rotax spark plug colour OK?
Posted by 'ChrisJones' on 24 Sep 2011 @ 11:03

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ChrisJonesJoined: October 2007
Total Posts: 1
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I'd appreciate some feedback on sparkplug colours.

This pic ( http://www.chrismobile.com/images/kart/162.jpg ) is a plug which has done approx 10 hours in race conditions, and I think looks spot on, although perhaps very very slightly lean?

In order to try and fix a poor bottom end (same day as running above plug), I replaced the 162 (which did the above plug colour) for a 165, the result being http://www.chrismobile.com/images/kart/165.jpg which is to be expected, very oily, after 2 hours of use.

So imho the 162 is the way to go (for the conditions on the day) but I'm just a fraction concerned its a bit lean. Although the engine never went over 65 degrees and was running a strip of tape (ambient was 17-18) so doesn't appear to be running hot.

I can go up one more clip position, what's the general consensus?

Thanks
Chris

Message Thread:

Rotax spark plug colour OK? by 'ChrisJones' << You are here!

Re: Rotax spark plug colour OK? by 'maxdad' (26 Sep 2011 @ 9:40)

Re: Rotax spark plug colour OK? by 'John' (26 Sep 2011 @ 17:05)

NT ;-) by 'maxdad' (27 Sep 2011 @ 12:31)

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