They are garbage engines and a garbage company. Let me clarify that I was talking about 2 stroke engines, not an MR1 clone. But I doubt their customer service and product standard changes depending upon what type of engine you buy (lol rent until it fails).
I won't recount my exhaustive investigative history on this from 2006-2010, but the failures were routine, and dare I say, expected after about 50 hours. As for the warranty during my history? You were provided another garbage replacement engine. However, you paid for shipping both ways (had to pay to send one POS back for the replacement POS) and also had to pay the R&R for your own boat. Garbage for garbage, and you had to pay for the removal and re-install, which is expensive considering all the carbs had to be removed, the oil lines, etc and then re-installed - all not covered by the warranty. After mine failed after 40 hours use and about 14 months later (I didn't get out often and still do not) I kept the core and had it rebuilt by professionals for about 900 bucks. But it was done properly without crap overseas parts which they use. I was able to sell the boat in 2013 and as of 2 years ago, the guy still had it with no engine issues. Side note, you could just tell, when operating, how cheap their engine was in comparison to the Yamaha engine, on sound alone. I remember thinking "This just doesn't sound right. " On sound alone, you could tell it was manufactured with cheap parts.
In any event, if it were me I'd be looking at a jet ski to snag your replacement engine. This certainly won't cost you 15k as a new one would.
EDIT: Good luck with the new one, and at 22 months I would pay to have a mechanic go over the engine with a fine tooth comb, pick out any issues, and make a warranty claim before the two years runs out. So long as you give them notice of the issue in a timely manner, if the 2 years runs with no resolution, you have what you need to proceed with a breach of warranty case.