what does this tell you

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Vintage man
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what does this tell you

Post by Vintage man » Mon Jan 13, 2020 7:08 am

Morning me again,what does this spark plug show as fitted new carb 1600 tp and took it for a drive and pulled a plug out ant the electrode burnt white after about 5km.New plugs fitted just before the short drive.



Vintage man
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Re: what does this tell you

Post by Vintage man » Mon Jan 13, 2020 7:10 am

Image

Ricoffy
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Re: what does this tell you

Post by Ricoffy » Mon Jan 13, 2020 7:52 am

Firstly, it seems to me your engine is running rich.

Secondly, I would also check the timing - perhaps too advanced?
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calooker
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Re: what does this tell you

Post by calooker » Mon Jan 13, 2020 8:43 am

To get a true indication would be to run it for a while longer.
Not running rich at all, otherwise the whole plug would have Black soot, it looks more like running hot and burning oil?
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73type2
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Re: what does this tell you

Post by 73type2 » Mon Jan 13, 2020 3:18 pm

According to Google:

"Light brown or tan colored deposits on the tip of your spark plugs are normal. ... If your spark plug is white in color or appears blistered, that means something is making the plug run too hot. Check for problems in your engine's cooling, a lean fuel mixture or incorrect ignition timing."

Vintage man
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Re: what does this tell you

Post by Vintage man » Mon Jan 13, 2020 3:37 pm

Thanks all

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