New Moto Guzzi Door Mats Available Now
Or buy one of these and quit worrying about that stock POS dipstick.http://pages.ebay.com/link/?nav=item.view&alt=web&id=121220339329&globalID=EBAY-US You'd be surprised how HOT the oil gets in these bikes.
CRAZY Idea here, but did you call a dealer?
Punch a hole in a piece of old innertube and stretch it over the plug. Screw the plug into the hole. use a sharp blade to cut away any rubber the extends beyond the plug.
And how hot is that?
Stick it in some boiling water and you'll have a pretty good idea how accurate it is. You'd rather not know how hot engines run any more.. at least I don't. I just use premium synthetic oil and forget it. As far as buying an o ring from the dealer? Seriously? My closest dealer is Jim at Rose Farm.. and I doubt he'd want to be bothered to send me something I could go to the hardware and get for 59 cents.