Is ripping an engine down common practice? Is it wise to do this and if so how often? I have been in this hobby a little over 2 years and really don't know how much maintenance is required for engines other than the usual After-Run-Oil after running for the day and Marvel Mystery Oil or ATF if you are storing for a longer period of time. I see some people rip them apart to clean and yet others never touch them that way. I don't mind ripping them apart as I love taking things apart and putting them back together again, especially when they work after your done... he he he How often if ever should you rip your engine down to give it a good cleaning and how far down do you take it apart to do this, both 2 and 4 strokers? Thanks in advance...