CS-370ES
CS-420ES
62
MAINTENANCE GUIDE
Intervals
Inspecting point Service Reference
3 months 6 months
Daily or or
100 hours 300 hours
Screws and bolts * Retighten / Replace
Air filter Clean 4-1
Inspect / Replace 4-1
Carburetor Inspect / Repair 4-8 to 4-14
Fuel leaks Inspect / Repair 4-2, 4-4
**
Fuel line Inspect / Repair 4-6
Cooling system Inspect / Clean 7-2
Spark plug Clean / Regap 3-2, 3-3
Inspect / Replace 3-3
Fuel strainer Clean / Replace 4-2
Leads and connections Inspect / Repair 3-5
Fuel tank Clean inside. 4-4
Muffler and exhaust port Clean 7-3
Starter system Inspect / Repair 2-2
Oil tank Clean inside.
Oil strainer Clean / Replace 6-1
Sprocket Inspect / Replace 1-5, 5-1
Guide bar Inspect / Clean
Chain brake Inspect / Repair 8-1, 8-2
Daily: Inspecting in every services.
IMPORTANT: Service intervals shown above are maximum. Actual use and your experience will determine
the frequency of required maintenance.
* Retighten the following screws and bolts after first 1 week use, and every 3 months.
Cylinder cover screws (3 pcs.)
Starter assembly screws (4 pcs.)
Cushion screws and bolts (2 pcs. each)
Front handle screws (4 pcs.)
Engine block mount bolts (4 pcs.)
** Inspect after every refuel.
11 MAINTENANCE GUIDE
11-1 Service Intervals