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Northern Lights NL382W — Adjusting Valve Clearances

Maintenance · Cylinder head valves

For the Northern Lights NL382W, from the Northern Lights operator's manual.

Applies to: Northern Lights NL382W

Procedure

  1. Readjust after first 50 hours, then every 1000 hours.
  2. Do after head bolts retightened; engine cold and not running.
  3. Remove rocker arm cover.
  4. Turn engine by hand until valves rock; turn crankshaft one more full turn.
  5. Insert thickness gauge between rocker arm and valve cap.
  6. Loosen lock nut; adjust intake and exhaust to 0.006-.01 in. (0.15-0.25 mm).
  7. Turn crankshaft 240° and adjust No. 3 cylinder, then No. 2.
  8. Replace rocker arm cover.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Valve clearance: 0.006-.01 in. (0.15-0.25 mm)

Full service-parts list: Northern Lights NL382W →

Source: Northern Lights operator's 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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