A squirrel chewed through a fuel line on an outdoor generator requiring a replacement. The cheapest and easiest source was eBay as there are suppliers who sell by the foot.
Steps
1. Use a micrometer or caliper to meassure the inner diameter (I.D.) and outer diameter (O.D.) of the damaged fuel line.
2. Since most precise measurement devices use decimal/metric inches (thousandth of an inch), use a conversion table to get the sizes in the closest fractional inches.
3. If the fuel line is old, you may not find the same outer dimension by searching eBay (example fuel line 3/16″ I.D.). If so, make sure you also get replacement fuel clips (example fuel line clips 3/16″). Select a seller that sells by the foot and order slightly more than you need as most of the cost is for shipping.