Briggs & Stratton — Adjust Valves

Adjustments

From a Briggs & Stratton service manual — check it applies to your exact model before use.

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Procedure

  1. Make sure No. 1 cylinder is at TDC compression stroke.
  2. Adjust valve clearance to 0.18 mm (0.007 in) cold for cylinders shown in chart: No. 1 piston at TDC compression — IN 1, EX 1 and 3.
  3. Rotate crankshaft one complete turn (360 degrees) clockwise and adjust remaining valves (IN 2, EX 2).
  4. Torque adjusting screws and jam nuts to 11.0 Nm (95 in. lbs.).
  5. Install valve cover; torque cover nuts to 6.0 Nm (50 in. lbs.).
  6. Install spark plugs; torque to 18.0 Nm (160 in. lbs.).

Specs & values

  • Valve clearance (cold) IN and EX 0.18 mm (0.007 in)

Source: Briggs & Stratton service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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