Do yourself a favor and get the best advice from the source, get a factory service manual, 1 mistake will easily cost more than the manual which you will have to get anyways when you blow up the engine because of misunderstood advice. Maybe a short read of 2 stroke engine basics to get the "big picture", it will help you understand why your engine failed if you don't get a service manual. At least the manual will help your engine vocabulary when asking questions online, remember.... people can only answer what they "think" you are asking whether the advice is correct or not. Lee