1986 Yamaha XJ750X Maxim

Back to yamaha Motorcycle Specs Index Page

Click Here to Compare upto 4 Motorcycle Models

– 1986 Yamaha XJ750X Maxim


Model Yamaha XJ750X Maxim 1986
Motorcycle Style: Standard


Engine Type:4-cylinder In-line, 4-stroke
Cylinder Inclination:Forward 14°
Engine Cooling:Liquid
Displacement XJ750X:749 cm³ (45.7 cu. in.)
Compression XJ750X:11:1
Bore x Stroke XJ750X:68.0 x 51.6 mm (2.6772 x 2.0315 in)
Combustion Chamber Volume:17.09 cm³ (1.04 cu. in.)
Cam Arrangement:DOHC
Valves – Total:20 total – 5 per cylinder
Valves – Intakes:(3) 21 mm per cylinder
Valves – Exhausts:(2) 23 mm per cylinder
Spark Plug Type 1986:
 NGK D8EA or Nippon Denso X24ES-U
NGK DR8ES-L or Nippon Denso X24ESR-U
Lubrication System:0.6 – 0.7 mm (0.024 – 0.028 in)
(4) Standard side-draft 33 mm Mikuni CV
Wet Sump
Maximum Horsepower XJ750X
67.1 kW (90 hp) @ 9000 rpm (Cycle Canada – Sep ’85)
Maximum Horsepower XJ700X64.1 kW (86 hp) @ 9500 rpm (TotalMotorcycle.com)
55.9 kW (75.01 bhp) @ 10000 rpm
Maximum Torque XJ750X7.40 kg·m (53.5 ft·lb) @ 8000 rpm (Cycle Canada – Sep ’85)
Maximum Torque XJ700X6.90 kg·m (49.9 ft·lb) @ 8000 rpm (TotalMotorcycle.com)
Power/Weight Ratio XJ750X0.379 hp/kg
Power/Weight Ratio XJ700X0.363 hp/kg
Quarter Mile XJ750X11.66 sec at 186.87 km/h (116.15 mph) (Cycle Canada – Sep ’85)
Quarter Mile XJ700X11.79 sec at 181.57 km/h (112.82 mph) (Cycle – Apr ’85)
11.779 sec at 182.87 km/h (113.63 mph) (Cycle Guide – May ’85)
Acceleration 0-60mph XJ750Xless than 3.20 seconds (still looking)
Acceleration 0-60mph XJ700X3.20 seconds (Cycle-Apr ’85)
Redline:10000 rpm
Gas Mileage – Owner Min.:38.2 mpg (Imp) • 31.8 mpg (US) • 13.5 km/L • 7.4 L/100 km
Gas Mileage – Owner Avg.:49.4 mpg (Imp) • 41.2 mpg (US) • 17.5 km/L • 5.7 L/100 km
Gas Mileage – Owner Max.:66.2 mpg (Imp) • 55.1 mpg (US) • 23.5 km/L • 4.3 L/100 km
Dist. to Reserve – Owner Avg.:145 km (90 miles)
Dist. per Tank – Owner Max.:210 km (130 miles)


Fuel Type:Regular Gasoline
Fuel Type – Owner Preferred:Regular Unleaded 89 – 91 octane without Ethanol
Fuel Capacity – Total:13 L (2.86 Imp. gal., 3.43 US gal.)
Reserve Capacity (of Ttl):3 L (0.66 Imp. gal., 0.79 US gal.)
Oil Type:SAE 10W30 (API type SE) or 20W40 (API type SE)
Oil Type – Owner Preferred:10W40 Fully Synthetic w/20% Lucas Oil Stabilizer
Oil Filter – Original:Yamaha 1L9-13441-11 w/O-ring: 602411(93210-87723)
Oil Filter – Owner Replacement:FRAM CH6003 (supplied w/O-rings)
Oil Filter – Alternate Replacements:K&N KN-144 or WIX 24934 or AMSOIL SMF105
Periodic Oil Change (no filter):2.5 L (2.20 Imp. qt., 2.6 US qt.)
Oil Capacity (with new filter):2.8 L (2.46 Imp. qt., 3.0 US qt.)
Total Oil Capacity:3.5 L (3.08 Imp. qt., 3.7 US qt.)
Radiator Capacity (w/all routes):2.4 L (2.11 Imp. qt., 2.5 US qt.)
Stock Air Filter:Yamaha Part# 1AA-14451-00-00
High Flow Air Filters:K&N YA-7080 or UNI Foam NU-2283
Final Gear Oil Type:SAE 80API “GL-4” Hypoid Gear Oil
Final Gear Oil Capacity:0.2 L (0.176 Imp. qt., 0.21 US qt.)
Fork Oil Type:10Wt Fork Oil
Fork Oil Capacity:389cm³ (13.7 Imp. oz., 13.2 US oz.) per stanchion
Tire Pressue (Front):177kPa  /  1.8kg/cm²  /  26psi  [ load below 90kg (198lb) ]
196kPa  /  2.0kg/cm²  /  28psi  [ load 90-238kg (198-525lb) ]
206kPa  /  2.1kg/cm²  /  30psi  [ High Speed Travel ]
Tire Pressue (Rear):196kPa  /  2.0kg/cm²  /  28psi  [ load below 90kg (198lb) ]
275kPa  /  2.8kg/cm²  /  40psi  [ load 90-238kg (198-525lb) ]
226kPa  /  2.3kg/cm²  /  32psi  [ High Speed Travel ]


Transmission Type:Constant mesh 5-speed
Clutch Type:Wet/multi-disc
Transmission Operation:Left foot shift left [1D-4U]
Primary Reduction System:Spur Gear
Primary Reduction Ratio:97/58 (1.672)
Secondary Reduction System:Shaft Drive
Secondary Reduction Ratio:49/36 x 19/18 x 32/11 (4.179)
Gear Ratio – 1st:35/16 (2.187)
Gear Ratio – 2nd:30/20 (1.500)
Gear Ratio – 3rd:30/26 (1.153)
Gear Ratio – 4th:28/30 (0.933)
Gear Ratio – 5th:26/32 (0.812)
Chasis / Forks / Suspension
Frame Type:Double Cradle
Caster Angle (aka Rake):31.5°
Trail:120 mm (4.7 in)
Suspension Type – Front:Telescopic fork
Shock Absorbers – Front:Air, coil spring, oil damper
Forks – Size:38 mm stanchion tubes
Forks – Air Pressure:10 to 17 psi
Wheel Travel – Front:150 mm (5.9 in)
Suspension Type – Rear:Swing arm
Shock Absorbers – Rear:Coil spring, oil damper
Wheel Travel – Rear:99 mm (3.9 in)
Wheels / Tires / Brakes
Tire Size – Front:100/90-19  57H  ( 90 mm depth) [ nothing taller is appropriate ]
*** Note – Front:110/90-19 ( 99 mm depth) is commonly listed but is too tall & will rub the fender at high speeds
Tire Size – Rear:130/90-16  67H  (117 mm depth) [ nothing wider will fit, so don’t bother ]
Owner Recommended Tires:V-rated Metzeler Lasertecs
Alt. Owner Recommended Tires:V-rated Dunlop GT501s
Alt. Owner Recommended Tires:V-rated Bridgestone Battlax BT45s
Wheel Size – Front:2.15″ cast aluminum 5-spoke
Wheel Size – Rear:16″ cast aluminum hoop
Brakes – Front:Dual discs, right hand lever
Brakes – Rear:Drum, right foot lever
Ignition System:Hitachi TID14-35 TCI
Generator System:Hitachi LD119-19 AC Generator (14V, 26A at 5000rpm  –  364Watt max)
Battery Type/Capacity:Yamaha YB14L/12V  14AmpH
Battery Dimensions (LxWxH):134mm x 89mm x 167mm (5-5/16″ x 3½” x 6-9/16″)
Replacement Battery Option:YUASA YB14L-A2  12V  14AmpH (Serviceable Lead/Acid)
Owner Recommended Battery:Westco 12V14L-B  12V  14AmpH  190 CCA (Sealed AGM)
Display Indicators:Left/Right/Neutral/Oil/High Beam
Starting System:Electric Starter
Coils (stock):(2) Hitachi CM12-25, 12Volt, Dual Output, Wasted Spark
Primary   Winding   Resistance   = 2.7
 ± 10% at 20°C (68°F)
Coils (Owner Replacement):Secomdary Winding Resistance = 12k
 ± 20% at 20°C (68°F)
(2) Dynatek DC1-1, 12Volt, Dual Angled Output, Wasted Spark
Primary   Winding   Resistance   = 3.0
 ± 10% at 20°C (68°F)
Secomdary Winding Resistance = 14k
 ± 20% at 20°C (68°F)


Overall Length:2235 mm (88.0 in)
Overall Width:775 mm (30.5 in)
Overall Height:1160 mm (45.7 in)
Seat Height:760 mm (29.9 in)
Wheel Base:1520 mm (59.8 in)
Min. Ground Clearance:145 mm (5.7 in)
Min. Turning Radius:2800 mm (110.2 in)
Wheel Size – Front:MT2.15″x19″ cast aluminum 5-spoke
Wheel Size – Rear:MT3.00″x16″ cast aluminum hoop
Tire Size – Front:100/90-19  57H  ( 90 mm depth)   [Air pressure in CAPACITIES section below]
Tire Size – Rear:130/90-16  67H  (117 mm depth)  [Air pressure in CAPACITIES section below]
Wheel Travel – Front:150 mm (5.9 in)
Wheel Travel – Rear:99 mm (3.9 in)
Wet Weight: XJ750X:237.6 kg (524 lb) with oil, coolant and full tank (as per Cycle Canada – Sep ’85)
Wet Weight: XJ700X:232 kg (511 lb) with oil and full tank (as per XJ700X Owners’ Manual)
:234.7 kg (517 lb) with full tank (as per Cycle – Apr ’85)
Dry Weight:215 kg (474 lb)
Engine Dry Weight:90 kg (198 lb)

Please note: Total Motorcycle would like to thank Maxim-X  for the above specifications and for Grant J for informing us of this gap in our 1985/86 Yamaha line. We made attempts to contact the webmaster at Maxim-X but all attempts failed. We fear the information at Maxim-X maybe soon lost as their site has not been updated for a long time thus we are trying to save the above information from the internet void. If you are the webmaster for Maxim-X please contact us.


About Michael Le Pard 3584 Articles
"Mr. Totalmotorcycle". Owner and Founder of Total Motorcycle. Supporting over Motorcyclists and Motorcycling for 19 great years. Total Motorcycle is my pride and joy and being able to reach out 300 million people has been incredible but I could not have done it without the support of my visitors, readers and members, thank you so much! You are making a difference to millions of riders worldwide. Thank you.

Be the first to comment

Leave a Reply