Specifications:

Displacement: 39.96cc
Bore: 40.0mm
Stroke: 31.8mm
Practical RPM : 1,800-9, 000
Output: 3.8ps/8,600 r.p.m.
Weight: 1,170g
Propeller: 18"x6", 18"x10", 18"x12", 20"x8"W

Included:
F-6040 muffler assembly,
ignition module
CM-6 spark plug 

<