by Stretchy » Fri Feb 08, 2008 10:40 am
Often as you like; it aint gonna hurt it any!
Realistically it actually depends on how you ride, your environment and how many miles you do.
I rev mine quite hard as I'm 6'5" and weight 15 ST so I have to to get the thing to move, I do a daily commute of 20Kms and my enviroment is fairly clean and I still change the oil every 1500Kms or so or 2 to 4 times a year. Changing the oil is easy (just make sure you've warmed the engine) and when you pull the plug you can remove those bits of metal stuck to the magnet! Changing the filter is it bit more of a faff and your going to make a bit of a mess but don't forget an engine runs on a bed of oil so if you want it to last change at least twice a year I'd say.
Cheers form Sunny (at last) Bristol, U.K.