01. Progressive performance
Engine
The engine is designed for maximum power, which is delivered in a controllable way to suit all kinds of enduro riding. Inside, all major components and shaft arrangements are positioned close to the centre of gravity to reduce the effects of rotational inertia, which leads to agile handling. Positioned in the chassis to further centralise mass, the engine weighs just 28.8 kilograms and with an output of almost 51 hp, the 350 cc 4-stroke engine is both light and powerful.
Cylinder head
Featuring finger followers treated with a Diamond-Like Carbon (DLC) coating, the DOHC cylinder head is engineered for high-level enduro performance. For optimal gas flow, the titanium intake valves are 36.3 mm while the exhaust valves are 29.1 mm. This allows the FE 350 Heritage model to rev freely and produce strong yet controllable power throughout its rev-range.
Cylinder and piston
An 88 mm bore cylinder and forged bridged-box-type CP piston combine to create a compression ratio of 13.7:1. As a result, the low oscillating mass delivers strong and controllable power. High-strength aluminium is used to manufacture both the cylinder and piston, with both components professionally engineered for outstanding performance and reliability.
Crankshaft
The crankshaft is optimised for high performance and overall reliability with long service intervals of 135 hours. This has been made possible by using a plain big end bearing, which features two force-fitted bearing shells.
Throttle body
The FE 350 Heritage model features a 42 mm Keihin throttle body optimised for throttle response. The injector is positioned to ensure the most efficient flow into the combustion chamber with the throttle cable mounted directly without a linkage for an enhanced response.