The deck belt on my Lazer snapped today. Out of the blue. No warning signs. I checked the pulleys and they all seem to spin pretty smooth. The one seems to sound a bit dry (circled in green) but when I spin it by hand it spins forever. But I suppose being dry could cause heat to build up on that pulley which could transfer to the belt and possibly weaken it. But the other thing I noticed was this flat idler pulley (circled in red - the one with a large spring on it - so I suppose a tensioner...
**** eyed flat idler pulley
**** eyed flat idler pulley