Ryobi 310r Inspection and Cleaning, Muffler Reassembly, Exhaust Exit Tube Screws, Inlet Port

MAINTENANCE AND REPAIR INSTRUCTIONS (Continued)

Exhaust

Exit Tube

Screws

Fig. 35

Inspection and Cleaning

1.Check the inlet port of the muffler and outlet port of the cylinder for excessive carbon deposits (Fig. 36). Clean as required.

Inlet Port

Fig. 36

2.Inspect the baffle inside the muffler for carbon build- up. Clean baffle by scraping carbon as required. Use a piece of wire to clear obstructions from the small holes in baffle (Fig. 37).

Fig. 37

If carbon build-up cannot be cleaned, replace the muffler.

3.Inspect the muffler mounting holes for elongation. Replace the muffler if the holes are elongated.

Muffler Reassembly

1.Install a new gasket*. Make sure the arrow stamped into the gasket is to your right. Tuck the tab (with the arrow) between the cylinder and plastic shroud (Fig. 38).

2.Install the muffler with the muffler mounting bolts (see Fig. 35) and torque the bolts to 80-90 in•lb

(9-10.1 N•m).

Muffler Gasket

Fig. 38

* Some earlier units have a muffler gasket with slots.

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