Suzuki GR 650 Tempter

Template: Infobox motorcycle / Maintenance / parameters

The motorcycle model GR 650 surnamed Tempter ( tempter ) was built from 1983 to 1989 by the Japanese manufacturer Suzuki. It is a cruiser with a 180 -degree counter- runner designed two-cylinder in-line engine with 651 cc and 36.8 kW.

Motor

The engine was one of the GS 450 derived, refined design. A round run- up to the maximum speed marked him out. Essentially, the technical innovations consisted of a mono-block crankshaft variable flywheel. Thanks to this auxiliary mass, the engine had enormous power in the lower rpm range and one for twin engines remarkably low vibration and presented in this respect each parallel twin in the shade. From 3000 revolutions min -1, the adhesion of the flywheel mass was separated by centrifugal governor, which brought a spontaneous spin up and good engine braking characteristics with them. Furthermore, the blow-by recirculation, the balance shaft, double buckle combustion chamber and the intake air should be mentioned.

The consumption is between 4.5 and 6.5 l/100 km.

Model development

The rest of the technique was identical in both versions: black -cylinder engine with polished covers, high handlebars, a floating-caliper front disc brake, drum brake at the rear and an oil- damped Full Floater suspension strut.

Characteristics

The GR 650 Tempter is considered robust two-wheeler, which was little considered in its presentation, but is valued by its drivers. The power curve of the engine at relatively low speeds allows a switching lazy driving.

In a contemporary test the comfortably designed chassis and good handling of the machine in tight turns at relatively large skew freedom and the stability of the fork was highlighted.

The design is dominated by the two-tone paint and the use of chrome parts.

Weaknesses of the GR

• In almost 50% of GR particularly the first years of construction, pitting occurs on the gear pair of 3rd gear.
• The alternator and the regulator unit: The stator of the alternator tends frequently scorched by a winding to the drying up of the charging current. The regulator rectifier unit, often fails.
• Membrane -controlled fuel cock: Even with small leaks (visible at removed fuel hose ) of the membrane is running gasoline through the intake ports into the combustion chambers and may after prolonged exposure during use of the starter with good sealing piston rings very slightly bend the connecting rods (petrol shock). It may also happen that gasoline on the cylinder wall runs down into the oil pan, where the lubricant diluted steadily more, which invariably results in damage to the bearings and the end for the motor by itself.
• Since the parts are quite expensive and difficult to obtain, it is very important that the driver is not too low oil level cause by an engine failure.