clc, have you changed your cambelt? Easy to do, has been done on the roadside in 20 minutes, and there is a tutorial on the forum.
http://mtridersclub.freewebspace.com/index_1.html" onclick="window.open(this.href);return false; The belts have a shelf life of 10 years, but that assumes they are not tight round a pulley. The portion round the pulley will have age-hardened if it has been sitting for a few years.
If the belts break, it's not a disaster, the standard cams are 'safe' so metal doesn't meet metal, but being stranded at the roadside isn't fun. You need a crank locking bolt to do the job.
Spec courtesy of TDI Power
The crank locking bolt is just an M8 bolt miniumum 50mm but longer can make it easier to fit. You then grind, file or turn in a lathe the end of the bolt to a blunt point (like a broken pencil tip) It is approximately the 8mm diameter of the bolt tapered down to a 5mm diameter point over the last 5mm of the bolt's length.
I'd hate you to have an avoidable breakdown, just when you're enjoying your new bike ! Eric