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Chainsaw starts then stalls: top 5 causes

M
Max
5 minMay 26, 2026
Chainsaw starts then stalls: top 5 causes

Top 5 causes by frequency

  1. Clogged fuel filter (40%) — replace, 3-8€
  2. Carburetor needle setting / dirty carb (30%) — adjust L screw or rebuild
  3. Saturated air filter (15%) — clean or replace
  4. Tank breather plugged (10%) — clean
  5. Ignition coil overheating (5%) — measure cold vs hot, replace 15-50€

Test order

Fuel filter → Air filter → Breather → Carb → Coil. 80% solved in first 3 steps.

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Source: Official workshop manuals

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