Thanks for all the advice guys, makes a big difference.
James, to answer you question about my MDS motor: mine is fine. My buddies' MDS motor seems to be erratic. I got a model about 2 years later than his though, so I think they have improved a lot. I have heard some horror stories about MDS, but I can tell you that mine starts fine, idles nicely and performs well.
Its probably not quite an O/S, but at the price it does the job!!