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8V spark plugs torque

Phang said:
Goodvibes said:
Is that a wet or dry torque spec? If dry, you're over-torqueing to attain the spec clamping. I do the same thread lube routine but snug it up by feel only.
Click to expand...
12Nm should be the dry torque spec.

Judging from the spark plug gasket state of compression, I am not too worried about it.
Click to expand...
On my G8VSE I originally tightened them to 12Nm (dry), but they tended to turn loose a bit after a few hundred miles. Now I tighten them to 14Nm (still dry) with no issues - have done so for the last 20,000 mi or thereabouts.

And, yes, my torque wrench is properly calibrated. ;)
 
I just put a set of new plugs about an hour ago (Iridium ones)...
Didn't use a torque wrench, f*** it! It's all in the elbow, lol.

The bike is due for the oil change and all but I noticed that it was running kinda unsmooth lately...
It's Tits now. :D
I believe that it's due more to the fact that the gaping was all wrong than the fact that I just installed new plugs.
 
Wish I had read this thread a day before I did the break-in service on my 8V Griso. I was lucky to get the threaded housing that was left over after it sheared off the plug out of my cylinder head. The other thing that made this a pain in the ass was that NO ONE local, auto parts stores, motorcycle shops (non- Guzzi) carries this plug. Special order. Or from Amazon in three days. Had to drive 70 miles to a Guzzi shop to pick up new plugs. And had just remarked 10 minutes before after doing the valve adjustment how "smoothly" everything was going. That's always a bad sign while wrenching!!
 
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