I got this Motion Pro Sync Gauge from Craigslist. I'm hoping to check my 05's synchronization with it. No directions with it but the guy did have a extra bottle of mercury with it. I put the contents into the gauge and checked to see if it worked with my Mityvac. Now I'm not sure how to use it and if anything is missing from it. Anyone here have one? One thing the guy I bought it from told me was to have the bike running then hook up the hoses or the mercury would get sucked into the carbs/throttle bodies. That seemed weird to me but I have no idea simce I never used one before. Well if anyone can help me out I'd appreciate it.