Homelite Mighty Lite Lawn Trimmer  "maintenance stroke engine" Questions

...stroke trimmer (UMK431) that starts on 1-2 pulls and runs great for about 10 minutes then sputters and stops. I have to wait a while to start it again. What might be wrong? I did a full maintenance ...

...stroke engine, the spark plugs becomed gummed quite fast. It is a recommended maintenance procedure to replace them yearly. This is often neglected. I would recommend replacing the spark plugs, it is ...