According to the people at Scott, the general weight limit for a rider is 110 kg. You are significantly above this, so the manufacturer doesn't necessarily support you on that. The wheels durability depends a lot on who built them and how well they were built and if they have taken any damage.
You are in a YMMV (and at your own risk) range by sticking with that bike and wheelset (I'd probably go for more spokes), but you may want to go to a bike shop and get the bike tuned up to make sure the wheels are in good condition and what not, and hope for the best (and do repairs as spokes break and what not, if they do). It helps if you don't ride like a hooligan as well (like not dropping off curbs and what not). I think this is a good article.
Trek specifies the max rider weight on most of their bikes to be around 300 lbs, which is probably closer to more comfortable than that.
Finally, fit is arguably more important for big riders than small riders.
The realistic thing to do (all at your own risk of course) is get the bike checked out to make sure its in good condition, and ride and replace things as they break. Avoid road hazards and be careful. Many bigger riders exceed their quoted weight limits on their bikes, but the factor is usually not around 35-40%. You may also want to look at some bike forums for big riders riding similar bikes.
Some other things to consider are recumbent bikes/trikes. These may be a bit more comfortable as well. There are also some manufacturers which build heavier rider-oriented bicycles (e.g. Worksman Cycles, which coincidentally today I found is the oldest bicycle manufacturer in the US, stocks things which can take up to quoted 500 pounds [though, your bike shop probably knows some bikes which have worked for heavy riders in your area]).