Tracker OX 400 2020, Owner'S Manual

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48
M
AINTENANCE
SPAR K PLUG
D o not o ve r ti gh t e n t he spar k pl ug. O ve r ti gh t e nin g t he pl ug c an c a u s e d a m a ge to t he
al um in um cy lin de r he a d t h r e a d s .
1. Remove the spark plug when the engine is cold.
2. Inspect and replace the spark plug at the intervals indicated in the SCHEDULED MAINTENANCE CHART on
page 36.
3. Apply a light coat of anti-seize compound to the spark plug threads.
4. Tighten to 16 ft. lbs. (22 Nm) torque.
T ools
• spark plug socket, 13/16” • torque wrench, ft. lbs
• ratchet • feeler gauge
• anti-seize compound
INSPEC T CON D I T ION O F SPAR K PLUG AC T ION
Electrode
Sooty Clean carefully with a wire brush.
Worn or damaged Replace spark plug.
Condition of plug
Fouled (indicated by a wet, black appearance)
possibly caused by:
• dirty air filter element or other restrictions in
the air intake system
Clean air system. Replace spark
plug.
• incorrectly adjusted valves Adjust valves. Replace spark plug.
• park plug wire in poor condition Repair or replace wire. Replace
spark plug.
• poor fuel quality Change fuel.
Replace spark plug.
Porcelain insulator Visible cracks Replace spark plug.
Gap
Correct gap (see illustration at right) Reinstall spark plug.
Incorrect gap (see illustration at right) Adjust to correct measurement.
.030 in. (.76 mm)