Yamaha F4BMHS Standard Shaft Tiller Controlled
Grey top cowling and contemporary graphics
Unique 3 position oil leak free storage system
Portable and lightweight, with large carrying handles
Easy-to use 180 degree steering and large shift knob
Built-in fuel tank 1.1 litre and remote tank connection allowing the possibility to connect extra optional portable fuel tank
Optional lighting coil provides 12V 6 Amp power supply
Large easy to use F N R Forward Neutral Reverse gear change lever
Shallow Water Drive for cruising close inshore
CDI ignition system for easy starting and reliability
Easy and comfortable to carry about, ashore or on board When you want to get out on to the water quickly, easy portability is important and the F4, F5 and F6 are the ultimate in portable power, with their compact shape and large, comfortable carry handles. So these engines are easy to take down to the water, or to lift on to your main boat as an auxiliary.
3-position storage system prevents oil leaks. When taking your engine to and from the water - or storing it - the last thing you need is a messy oil leak. Yamaha's unique engine breather system allows the engine to be stored on its front or either side without danger of oil leaking onto your dock or deck - or into the boat locker or car boot.
180 degree steering with friction and throttle adjustment Handling is a joy, thanks to the simple steering friction control adjustment and the ability to steer a full 90 degree to left or right, which makes light work of tight turns and docking. Throttle trim is easy to adjust too, so when you're out on the water, you can be sure of great stability and control, even at high speed.
Optional lighting coil gives 12V 6A power supply The convenient option of a lighting coil and voltage regulator/rectifier provides a reliable 12V 6A power supply for running lights or charging batteries. Great for a bit of exploring or fishing at night!
Built-in fuel tank with switch-over facility for remote tank The handy built-in 1.1 litre fuel tank is great for portability and makes more room for gear in the boat, whether that's another box of bait, or an extra cooler of refreshments. For longer trips, simply plug in a remote tank available as an option and twist the 2-way tap.
Engine type 4-stroke
Displacement 139 cc
No. of cylinders and configuration 1 OHV
Bore x stroke 62.0 mm x 46.0 mm
Prop shaft output at mid range 2.9kW at 4,500 rpm
Full throttle operating range 4,500 - 5,500 rpm
Lubrication system Wet sump
Fuel Induction System 1-Carb
Ignition and advance system CDI
Starter system Manual
Gear ratio 2.08
Recommended boat transom height Long 568mm
Weight with propeller F4BMHS 27.0 kg
Fuel tank capacity 1.1 litres Built in or optional separate fuel tank
Oil pan capacity 0.6 litres