ISM, ISMe, and QSM11 – 006-024   Fuel Supply Lines

Remove the fuel line or fuel hose.

Inspect the inside of the fuel hose.

• The inner lining of the hose can separate from the center hose section.
• A separation or flap can cause a restriction in the fuel flow.

Replace the fuel hose if damage is found.

Check for cracks that can cause a pressure loss.

Check the metal fuel lines for sharp bends that can cause a pressure restriction.

If a line(s) is damaged, replace the line(s).

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause personal injury.

Use compressed air to flush the lines and remove any loose dirt particles.

Install the fuel lines.

Install any brackets that were in place on the fuel plumbing.