F4BMHS

Compact, light weight and powerful.

Filling a vital horsepower bracket in the Australian market, the all new F4B has been designed to be easy to use and exceptionally smooth running. With a range of exclusive features, increased capacity for greater performance as well as the latest generation cowl design and graphics, the F4B is sure to be a popular addition to Yamaha’s current engine line up.

For easy transport and mounting the F4B is fitted with an ergonomically designed grasp on the front of the motor and a large carry handle on the rear. The engine also features Yamaha’s unique oil leak prevention system which allows the owner to store or transport the engine on either side or its front without leaking engine oil. This means worry free transport in a car boot and hassle free storage.

Specifications

Engine

Engine Type	OHV, 1-cylinder
Displacement	139 cc
Bore x Stroke	62 x 46 mm
Recommended Max RPM	4000-5000
Lubrication System	Wet sump
Fuel Management	Carb
Ignition	CDI
Starter System	Manual Choke
Alternator Output	12V-6Amp with Rectifier Regulator (optional)
Operation Method	Tiller Handle
Trim & Tilt Method	Manual Tilt
Gear Ratio	2.08:1
OEDA Emission Rating

Dimensions

Height	F4BMHS : 432 mm (17 in)
Weight	F4BMHS : 27 kg