![]() ![]() Engine pivot point When the rear wheel goes over a bump, the whole unit Movement is damped pivots in the frame, its movement damped by a torsion bar and linkage levers, with an additional damper unit by a rubber bush. The engine and drive unit also act as the swingarm for the rear suspension, reducing weight and saving space. The pinions are arranged on Swinger two shafts. Torsion bar housing Adjuster Kick-starting Rear wheel This is used to gear set up and make adjustments to Gearbox the gearbox. Gear selection The selector lever is operated by push-and-pull cables that run from a handlebar twistgrip. Gearbox oil filler cap Anchor point Upper linkage from torsion bar fixes here. ![]() Swingarm Piston Part of the suspension, Upper portion this unit is linked to the power unit and rear drive. THE ENGINE Bevel drive gears Shock absorber lug Drive shaft Cylinder head The lower end of the This transmits drive from the suspension unit gearbox to the rear wheel. Timing chest Gears driving camshaft off crankshaft are inside.ģ00. Oil supply This delivers lubricant to the crankshaft. Crankcase Cast in aluminium, this is split vertically. Valve pusher This is operated by the cam below it. Exhaust Pipe leads to silencer to rear of engine. ![]() Exhaust valve A closing spring surrounds the valve stem. Cylinder fins These are exposed to cooling air. Carburettor choke tube Throttle cable Spark plug This is threaded into the front of the cylinder head. 299 Throttle Cylinder head Inlet valve Plug lead Constructed in the This is cast in one Piston sucks this This high-tension form of a pivoting piece with the valve open against wire runs from butterfly valve. ![]()
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