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The Honda CB650 is a four-cylinder middleweight motorcycle manufactured from 1979 to 1985 by Honda. The machine was successor to the Honda CB550, which was in turn based on the Honda CB500. The CB650 had a 626 cc SOHC four-cylinder, eight-valve engine which produced 63 hp (47 kW) @ 9,000 rpm.^[1] The CB650's performance was comparable to contemporary 750 cc motorcycles. It was Honda's last SOHC aircooled straight-four engine.

Model history

The CB650 was introduced in 1979.

In 1980 to 1981, the newly re-styled CB650 used the same 626 cc engine as the previous year, but was now available in either Standard or Custom configurations. The style changes focused on a new teardrop tank, chromed air-box, and smaller side covers. The Standard model featured 4-2 exhaust pipes and wire-spoke wheels.

The second generation was produced from 1982 to 1985. In 1982 the Nighthawk replaced the Custom of the previous years and featured a re-designed tank and side covers. In 1983 a new DOHC engine replaced the SOHC engine used since 1979. The DOHC engine had hydraulic valve lash adjusters and was rubber mounted; and final drive changed from chain-drive to shaft-drive.

References

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