honda-power-equipment hht31s ユーザーズマニュアル

HHT25S

HHT31S

Fuel

Type

Unleaded gasoline with a pump octane rating of 86 or higher (page 40)

Capacity

0.53 qt/16.9 fl oz (0.50l)

0.69 qt/22.0 fl oz (0.65l)

Engine oil

Type

SAE 10W-30, API SJ or SL (page 27)

Capacity

2.71 fl oz (80 cc)

3.4 fl oz (100 cc)

Spark plug

Type

NGK: CMR5H

NGK: CR5HSB
DENSO: U16FSR-UB

Electrode gap

0.024 – 0.028 in (0.60 – 0.70 mm)

Carburetor

Idle speed

3,100 ± 200 rpm

Maintenance

Before each use

Check engine oil (page 26)
Check air filter (page 27)
Check throttle cable (page 28)
Check cutting attachment (pages 30 and 32)
Check debris shield (pages 29 and 36)
Check nuts, bolts, fasteners
Check shoulder harness, quick release (page 19)

First 10 hours

Change engine oil (page 26)

Subsequent

Refer to the Maintenance Schedule (page 25)