{"id":1827,"date":"2018-03-20T23:41:07","date_gmt":"2018-03-20T23:41:07","guid":{"rendered":"https:\/\/www.whitedogbikes.com\/whitedogblog\/?p=1827"},"modified":"2025-01-04T15:15:56","modified_gmt":"2025-01-04T15:15:56","slug":"yamaha-xj-900-specs","status":"publish","type":"post","link":"https:\/\/www.whitedogbikes.com\/whitedogblog\/yamaha-xj-900-specs\/","title":{"rendered":"Yamaha XJ900F Specs and Info (1985 to 1994)"},"content":{"rendered":"
\"Yamaha<\/figure>\n

Looking for XJ900 F parts? Buy XJ 900 spares on Amazon…<\/a><\/span><\/p>\n

\"Yamaha<\/figure>\n

Yamaha XJ900F specs…..<\/h2>\n

The Yamaha<\/a> XJ900 F was a half faired sports touring bike manufactured by Yamaha between 1985 and 1994 (in the UK). The XJ900 had an 891cc inline 4 cylinder engine, shaft drive and a ‘bikini’ style top fairing. Later models also had a belly pan as standard.
\nThe original XJ900, released in 1983 with the 31A model code, had a small fairing mounted to the handle bars which affected the bikes handling and caused a ‘weave’ at higher speeds. After this, Yamaha fitted, to the XJ900F, a larger frame mounted fairing and a few other modifications which improved the handling.
\nDue to the ease of servicing and maintenance, as well as the shaft drive, the XJ900 F proved a reliable and popular bike for Yamaha and the XJ900 was produced till 1994 when it was replaced by the XJ900S Diversion<\/a>.
\n<\/p>\n

\"Yamaha<\/figure>\n

Side view of a 1994 (‘L’ reg) Yamaha XJ900 F<\/strong><\/p>\n

A little bit about the Yamaha XJ 900 (pre diversion)…..<\/strong><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Basic model info…<\/span><\/strong><\/h3>\n<\/th>\n<\/tr>\n<\/thead>\n

Manufacturer:<\/strong><\/td>\nYamaha<\/td>\n<\/tr>\n
Model:<\/strong><\/td>\nXJ900F<\/td>\n<\/tr>\n
CC:<\/strong><\/td>\n891cc<\/td>\n<\/tr>\n
Engine type:<\/strong><\/td>\nInline 4 cylinder (4 stroke)<\/td>\n<\/tr>\n
Years in production:<\/strong><\/td>\n1985 to 1994<\/td>\n<\/tr>\n
Style of bike:<\/strong><\/td>\nHalf faired sports tourer (later models had a belly pan as well as a top fairing)<\/td>\n<\/tr>\n
Insurance:<\/strong><\/td>\nGroup 12 (of 17 – Estimated)<\/td>\n<\/tr>\n
Preceded by:<\/strong><\/td>\nXJ900 (31A)<\/a><\/td>\n<\/tr>\n
Succeeded by:<\/strong><\/td>\nXJ900S Diversion<\/a><\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\"XJ900F<\/figure>\n

Rear view of a 1994 XJ900 F (4BB, pre diversion model)<\/strong><\/p>\n

Models and years (in the UK)<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
XJ900F (Feb 1985 to Dec 1986)…..<\/strong><\/td>\n<\/tr>\n
Model code:<\/td>\n58L<\/td>\n<\/tr>\n
Frame number started:<\/td>\n58L–000101—-<\/td>\n<\/tr>\n
Description:<\/td>\nSports tourer with an 891cc air cooled 4 cylinder engine and a 5 speed gearbox. It had twin front and single rear disc brakes, twin rear shocks, 18 inch cast wheels, 4 into 2 chrome exhaust, half fairing with square headlamp, belly pan and alloy pillion grab rail.<\/td>\n<\/tr>\n
Available colours:<\/td>\nBlack and red or white and blue<\/td>\n<\/tr>\n
Cost new:<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
XJ900F (Jan 1987 to Dec 1990)…..<\/strong><\/td>\n<\/tr>\n
Model code:<\/td>\n58L<\/td>\n<\/tr>\n
Frame number started:<\/td>\n58L–020101—-<\/td>\n<\/tr>\n
Description:<\/td>\nSame as above model but with slotted front disc brakes (instead of ventilated) and ‘Yamaha’ logo on the petrol tank.<\/td>\n<\/tr>\n
Available colours:<\/td>\nBlack or white<\/td>\n<\/tr>\n
Cost new:<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
XJ900F (Jan 1991 to Dec 1991)…..<\/strong><\/td>\n<\/tr>\n
Model code:<\/td>\n4BB1<\/td>\n<\/tr>\n
Frame number started:<\/td>\n4BB1–000101—-<\/td>\n<\/tr>\n
Description:<\/td>\nSame as above models with a few minor changes.<\/td>\n<\/tr>\n
Available colours:<\/td>\nBlack or white<\/td>\n<\/tr>\n
Cost new:<\/td>\n\u00a34899<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n
XJ900F (Jan 1992 to Dec 1994)…..<\/strong><\/td>\n<\/tr>\n
Model code:<\/td>\n4BB2<\/td>\n<\/tr>\n
Frame number started:<\/td>\n<\/td>\n<\/tr>\n
Description:<\/td>\nSame as above models.<\/td>\n<\/tr>\n
Available colours:<\/td>\nBlue and white or black and grey<\/td>\n<\/tr>\n
Cost new:<\/td>\n\u00a34899 for a ‘J’ reg
\n\u00a34724 for a 1992 ‘K’ reg
\n\u00a34869 for a 1993 ‘K’ reg
\n\u00a35099 for a 1993 ‘L’ reg
\n\u00a35629 for a 1994 ‘L’ or ‘M’ reg
\n\u00a35699 for a 1995 ‘M’ reg<\/td>\n<\/tr>\n
<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\"XJ900<\/figure>\n
\"XJ900<\/figure>\n

XJ900 891cc engine<\/strong><\/p>\n

Engine and gearbox stuff…..<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Displacement:<\/td>\n891 cc<\/td>\n<\/tr>\n
Engine type:<\/td>\nInline 4 cylinder (4 stroke)<\/td>\n<\/tr>\n
Number of cylinders:<\/td>\n4<\/td>\n<\/tr>\n
Cylinder firing order:<\/td>\n1 – 2 – 4 – 3<\/td>\n<\/tr>\n
Valves:<\/td>\n8 valves (2 valves per cylinder)<\/td>\n<\/tr>\n
Bore and stroke:<\/td>\n68.5mm x 60.5mm<\/td>\n<\/tr>\n
Compression:<\/td>\n9.6:1<\/td>\n<\/tr>\n
Cam shaft configuration:<\/td>\nDouble overhead cam (DOHC)<\/td>\n<\/tr>\n
Cooling system:<\/td>\nAir cooled<\/td>\n<\/tr>\n
Clutch:<\/td>\nWet multi plate clutch<\/a> – EBC part no: CK2255 for the clutch and CSK017 for the springs (don’t forget a clutch tool<\/a> to hold it!<\/td>\n<\/tr>\n
Piston to bore clearance:<\/td>\nNew: 0.03 to 0.05mm – Maximum: 0.1mm<\/td>\n<\/tr>\n
Valve clearance (inlet):<\/td>\n0.11 to 0.15mm (when cold)<\/td>\n<\/tr>\n
Valve clearance (exhaust):<\/td>\n0.16 to 0.2mm (when cold)<\/td>\n<\/tr>\n
Gearbox:<\/td>\n5 Speed, manual clutch (1st gear down, 2nd to 5th gear up. Neutral between 1st and 2nd gears)<\/td>\n<\/tr>\n
Gearbox oil:<\/td>\nFrom engine (doesn’t need a separate gearbox oil)<\/td>\n<\/tr>\n
Power:<\/td>\n98 bhp<\/td>\n<\/tr>\n
Torque:<\/td>\n81 nm<\/td>\n<\/tr>\n
Top speed (estimated):<\/td>\n134 mph<\/td>\n<\/tr>\n
Final drive:<\/td>\nDrive shaft<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\"XJ900<\/figure>\n

XJ 900 F (4BB2) carbs<\/strong><\/p>\n

Carb, fuel and oil stuff…..<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Fuel system:<\/td>\nCarburetor<\/td>\n<\/tr>\n
Carb type:<\/td>\n4 x BS36 Mikuni carbs<\/td>\n<\/tr>\n
Idle speed:<\/td>\n1000 to 1100 rpm<\/td>\n<\/tr>\n
Pilot screw opening:<\/td>\n2.5 turns<\/td>\n<\/tr>\n
Fuel type:<\/td>\nUnleaded petrol<\/td>\n<\/tr>\n
Fuel tank capacity:<\/td>\n22 litres<\/td>\n<\/tr>\n
Miles per gallon (approx!!):<\/td>\n44 mpg<\/td>\n<\/tr>\n
Lubrication:<\/td>\nWet sump<\/td>\n<\/tr>\n
Engine oil type:<\/td>\n10w40 Motorcycle oil<\/a><\/td>\n<\/tr>\n
Engine oil capacity:<\/td>\n2.8 litres<\/td>\n<\/tr>\n
Oil filter:<\/td>\nHiflo HF144 \/ Filtrex OIF016<\/a><\/td>\n<\/tr>\n
Air filter:<\/td>\nHiflo part no: HFA4901<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\"XJ900<\/figure>\n

XJ900F battery – YB14L-A2<\/strong><\/p>\n

Electric stuff…..<\/span><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n
Ignition type:<\/td>\nElectric CDI<\/a><\/td>\n<\/tr>\n
Starter:<\/td>\nElectric start<\/td>\n<\/tr>\n
Electrical system voltage:<\/td>\n12 volts<\/td>\n<\/tr>\n
Electrical system capacity:<\/td>\n14 amps<\/td>\n<\/tr>\n
Regulated voltage (with engine running):<\/td>\n14.2 to 14.8 volts<\/td>\n<\/tr>\n
Spark plug:<\/td>\n4 x NGK BPR8ES<\/a><\/td>\n<\/tr>\n
Spark plug gap:<\/td>\n0.7 to 0.8mm<\/td>\n<\/tr>\n
Spark plug torque:<\/td>\n20nm<\/td>\n<\/tr>\n
Spark plug ignition:<\/td>\n2 x Coils<\/a><\/td>\n<\/tr>\n
Battery:<\/td>\nYB14L-A2 \/ CB14L-A2<\/a><\/p>\n

Notes: <\/strong><\/p>\n