OK - a couple months ago I read all the engine warranty posts then went to some Canadian website to do the registration - and did not succeed. So I called Lockwood. I faxed them my information and they registered me. AND on a later call they told me that they took care of that "extended warranty" thing when they registered me. They told me to LOG the date of the first engine run. Then, IF I have a warranty claim, to be able to produce a copy of that logged date (and not to "send anything in" when I run the engine the first time.) Kudos to Lockwood! I've bought several things from them - the oil sensor relocator kit (for after inspection), compression tester, carb synch tester, oil tank quick drain, spare spark plug, spare exhaust spring, spare carb o-rings.