Author Topic: opinions please? Plug color  (Read 417 times)

Offline tlmark

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opinions please? Plug color
« on: 03.09. 2018 11:48 »
Hi, guys well I'm 260miles in after my rebuild and I pulled the plugs yesterday to check the state of play,
And I was looking for your views on how they look. Good, bad, ok etc.
I'm a bit puzzled as to why one is wet.

adm edit: topic title edited to reflect topic subject.
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Online muskrat

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Re: opinions please? Plug color
« Reply #1 on: 03.09. 2018 12:10 »
G'day tl.
Right is lean and burning a bit of oil, Left is burning a bit more than the right.
Cheers

Ps: your fingers are too clean to have been working on a BSA *smile*
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Offline tlmark

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Re: opinions please? Plug color
« Reply #2 on: 03.09. 2018 12:29 »
Cheers Mus

any idea why its burning oil it had new valves n seats/guides last year and rebore and pistons this rebuild.

I have also fitted a new higher pressure SRM oil pump?


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Online bsa-bill

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Re: opinions please? Plug color
« Reply #3 on: 03.09. 2018 12:56 »
Don't think I'd be too worried with those, given today's strange brew
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Online Black Sheep

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Re: opinions please? Plug color
« Reply #4 on: 03.09. 2018 14:00 »
Oil burn could be the SRM oil pump pushing more oil to the top end and some going down the inlet valve guides. Nortons with high output pumps have inlet valve guide seals to counter this.. 
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Online muskrat

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Re: opinions please? Plug color
« Reply #5 on: 04.09. 2018 00:27 »
G'day tl.
Lots of reasons it could be burning oil. Not run in hard enough and the bores are glazed, broken oil ring, bored with too much piston clearance, leaking head gasket etc, etc.
I'd be more concerned with the lean looking plug.
Cheers
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Offline edboy

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Re: opinions please? Plug color
« Reply #6 on: 04.09. 2018 17:31 »
if its a maggie ignition it could be a bad ignition. oil problem if its burning a pint every few hundred miles. i d try electronic ignition or coil ignition first . then tune the carb. afterwards revert to the mag if thats your preference.
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Offline tlmark

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Re: opinions please? Plug color
« Reply #7 on: 05.09. 2018 10:36 »
Cheers Guys I appreciate your help  *wink2*
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