I have no info on this trimmer at all. It was with the house when we moved in and has run quite well the last 4 years. I went to start it up for the Sring clean-up, primed it, and it ran for about 3-4 seconds, Tried again and it again ran for 3-4 seconds, Now, it will not start at all. Checked the air filter, fuel lines, and spark plug (champion 817-1e). Everything seems to be OK, but won't start. I also cannot find a cross reference for the spark plug. Does anuone have any ideas? Thanks for any help or suggestions, Gene