Yamaha XJ900

{{Short description|Japanese motorcycle model}}

The Yamaha XJ900 is a motorcycle manufactured by Yamaha from 1983. It was a development of the original Yamaha XJ model, the XJ 650, which was the foundation for the entire XJ series.

Image:Yamaha XJ900 31A.jpg

In its original incarnation, the XJ900 had an air-cooled, double overhead camshaft, {{cvt|853|cc|abbr=on}} 4-stroke, 4-cylinder, 8-valve engine. Originally fitted with a handlebar mounted bikini fairing, its handling came in for criticism. This was quickly replaced with a frame mounted upper fairing and retrofitted to all models. The 1983 XJ900 came with anti-dive front forks, shaft drive and has triple disc brakes (2 front, 1 rear).{{Cite web |title=Yamaha xj900 specs |url=https://www.ultimatespecs.com/motorcycles-specs/yamaha/yamaha-xj-900-1983 |website=Ultimate specs}}

A revised version was launched in 1984 and displaced {{cvt|891|cc|abbr=on}}. Aside from the engine capacity increase it was equipped with more conventional forks than its predecessor and a belly pan came as standard.{{Cite web |last=Uk |first=Classic bike hub |date=2014-03-03|title=Road test: Yamaha xj900 |url=https://www.classicmechanics.com/yamaha-xj900/ |access-date=2014-03-03|website=Classic mechanics.com}} The increase in engine capacity meant the carburettors went up from 35 mm to 36 mm. Fuel capacity is 22 litres and the transmission is a 5-speed. Aside from these changes it was nearly identical to the original and was manufactured until 1994.

The XJ900 Diversions were their replacements.