The Moto-Guzzi Nuovo Falcone VOC

my NF seems to be running rich; The spark plug sooted up and stopped sparking until I cleaned it; Is there a mixture adjustment on the carb or could it be a worn needle?   Many thanks for any info,

Hi Warna, and sorry for the VERY long delay in welcoming you to our forum.
Sadly, there's not much traffic on here these days, and so I do not check for posts as often as I should....
The plug won't be black because of the heat grade of the plug. B6 or B7 are normal choices, but sooting can be caused by many things.
In my experience over the past 20 years, the most likely causes are the rubber sealing face of the enrichener plunger, but the worst cases have actually been caused by ignition problems.
The last two times I have had serious sooting problems have been caused by the coil breaking down (I replaced it with a Lucas from BL Mini) and failure of the condenser.
Hope that's some help in diagnosing your problems, and apologies again for the delay!

Sorry for delay in replying. There's so little traffic on here now, I don't visit as often as I should.....
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Hi All.
Sorry for the length of posting but as a newbie I'm as ignorant as can be.
My newly acquired NF has developed a noise that at first I thought it was noisy tappet(s), but now suspect the "clacking" is lower down in the cylinder.
New to this wonderful old Militare and having only covered approx 250 miles since collecting the beast, today I decided to perform a compression test to try and diagnose whether it's piston ring(s) or valve guide(s) may be the culprit.
I understand that no engine likes to sit not run for long periods and these engines can be heavy on exhaust valve seat and guide
So......
The compression test results were:
Warm=60/65psi. For all three tests.
Warm with a shot of oil in the barrel=105/110psi for all three.
Seems a little extreme to me and on my other engines would suggest a broken or stuck ring, or very worn bore. But with less than 8K kms what would you far more experienced folk day?
It doesn't use oil that I can determine, but I haven't put enough miles on it as yet to know for sure. It does have smoke from the exhaust whilst idling and reving, but probably more black than blue! It does run rich. Better now the needle is on 2nd notch, but Spark plug very black.
So before I strip top end or do more damage riding it whilst weather lasts, I'm seeking advice.
I'm not looking to up the rather Conservative horse power, or make it something it wasn't designed to be. Making the head ready for E10 fuel wouldn't be a bad thing though. I'm using Valve master plus at the moment. Hope that hasn't been a reason for the smoke and noise?
Any help and comments most appreciated.

That’s good to hear: glad you got it sorted out 😎