M17 Mini Hit and Miss Engine 1.6cc Four-Stroke Water-Cooled Gas Model

1.6cc Dual-Flywheel Evaporative Water-Cool Horizontal M25 Mini Var-Speed Engine

Mini Hoglet H09 2.1cc Gas Engine Model CNC Metal Motor Kit

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EngineXpert M12B 1.6cc Mini 4-Stroke Water-Cooled Gas Engine Model DIY Kit

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EngineXpert M14 Mini Atkinson Cycle Engine Model - Brass & Steel, Air-Cooled

OKMO M17 1.6CC Mini Water-cooled 4-stroke Horizontal Hit-Miss Gasoline ICE Model