In the past year since my last full service I've had to add oil where it seems I never had to the first 3 years (changed yearly about 4000 miles). The BB was done on my bike 1.5 years ago. After making a couple of 500 mile trips this year, I noticed I had to add about a pint (16 oz.) after each trip. That seemed like a lot to me and I began to worry why it would be burning or using oil. There is no sign of any leakage in my garage.
Earlier in the year I pulled the plugs and the right cylinder looked like it was running richer and it was oilier around the plug base. I cleaned and re-torqued in the plugs, adjusted the right carb in 1/8 turn and re-balanced. The last 500 - 1000 miles the bike has been running the best it ever has. I pulled the plugs today and they looked picture perfect - best I've ever seen them. There was no sign of oil fouling either.
I called my dealer as said my bike is due for it's 4 year service and has a little over 16000 miles on it. I was wondering it we should pull it down to check the valve guides or rings. He said normal oil consumption (according to Triumph) is one liter per thousand miles. That's not much different (actually slightly more) than what I'm noticing, but it seems like a lot after using so little.
I would like to get another opinion. A pint every 500, quart every 1000, A GALLON EVERY 4000! I'm using 15-50 fully synthetic oil recommended by my dealer. I love the way the bike is running, just a little worried about the oil usage. Really would appreciate any insight or help.
