Originally Posted by bnuk
What if you took a plate and drilled two 10mm(?) holes that will line up with the bolts that hold the sprokets on. Then before and you take off the belt (and after you've taken off the sproket nut) you took off those bolts, and put the plate on there and then replaced bolts and torqued them down onto that plate enough to hold the sprokets in place while you play around with the belt and everything else.
That'll work. I had to ask for an extra hand when putting my belt on to take out all the slack on the belt. There's holes at the top where you can stick a punch into, but...it doesn't quite line up with the timing marks etched into the cam gears. So I had to line it up, have someone hold it with a pipe wrench and tighten everything up. This tool (or anything you fab up) easily makes it a one person job.