jango,
My current setup is 904cc, stock carbs, with 160mains, 42pilots, ~3 turns on screws, TBS needles, no airbox, K&N filters/freak and the wonderful looking and sounding Thunderbike pipes.
And as I was cleaning every nook and cranny yesterday while it rained, I have yet to find even the slightest leak or drip. This baby's tighter than a drum. I changed the oil and filter again at 250 miles, still on the dino oil, I'll put synthetic back in at 500 miles. The oil I drained was nice a clean, as was the filter I chopped open to inspect for metal chunks, none found. So far so good. I took my daughter for a 50 mile ride the other day and it was amazing that the motor didn't even care that she was on the back, way more torque.
The spark plugs look just like this picture (
perfect brown color):
I have the thruxton needles, but haven't tried them yet, maybe later this week.
