SPECIFICATIONS
SRM-3020U
50
X7502350202
© 12/2019 ECHO Inc.
7.
Allow engine to cool. Remove the spark plug lead from the spark plug.
Remove the spark plug. Pour 7 cc (0.25 oz.) of fresh, clean, two-stroke
engine oil into the cylinder through the spark plug hole.
8.
Pull the recoil starter handle 2-3 times to distribute the oil inside the
engine.
9.
Observe the piston location through the spark plug hole. Pull the recoil
handle slowly until the piston reaches the top of its travel and leave it
there.
10. Install the spark plug. Connect the spark plug lead to the spark plug.
SPECIFICATIONS
MODEL
SRM-3020U
Length without cutter head
1,808 mm (71.2 in.)
Width
687 mm (27 in.)
Height
519 mm (20.4 in.)
Weight (dry) without cutter
head
6kg (13.2 lb.)
Engine Type
Air cooled, two-stroke, single cylinder gasoline
engine
Bore
36 mm (1.42 in.)
Stroke
30 mm (1.18 in.)
Displacement
30.5 cc (1.86 in.³)
Exhaust
Spark arrestor muffler or spark arrestor muffler with
catalyst
Carburetor
Diaphragm with purge pump
Ignition System
Flywheel magneto, capacitor discharge ignition type
Spark Plug
NGKCMR7H – Gap 0.6 mm (0.026 in.)
Fuel
Mixed (Gasoline and Two-stroke Oil)
Fuel/Oil Ratio
50:1
Gasoline
Use 89 Octane unleaded. Do not use fuel containing
methyl alcohol, more than 10% ethyl alcohol or 15%
MTBE. Do not use alternative fuels such as E15 or
E85.
Oil
ISO-L-EGD (ISO/CD 13738) and J.A.S.O. M345-
FD, two-stroke, air-cooled engine oil.
Fuel Tank Capacity
0.71 L (24 US fl. oz.)
Starter System
Automatic rewind starter
