These are the maintenance facts of your Tuono - if it's an 1998 - 2003 
Engine
Engine idle speed......................................................... 1250 +/- 100 rpm
Spark plugs type........................................ NGK DCPR9E or NGK DCPR9EVX
Electrode gap....................................................................0,6 to 0,7mm
Valve clearance (cold engine) intake.......................................0,12 to 0,17
Valve clearance (cold engine) exhaust.....................................0,23 to 0,28
Cylinder compression.................................180 to 150 psi not below 120 psi
Miscellaneous
Drive chain slack.....................................25mm with bike on auxiliary stand
Throttle twistgrip freepl............................................................2 to 3mm
Fast idle lever freeplay.............................................................2 to 3mm
Recommenden lubricants and fluids
Engine/transmission oil type......................................API grade SG motoroil
Engine/transmission oil viscosity..............................................SAE 15W50
Engine/transmission oil capacity.................3,9l incl filter change 3,7l without
Coolant type........................................50% destilled water 50% antifreeze
Coolant capacity (total)........................................................approx. 2,5l
Brake and clutch fluid...............................DOT 5.1 NOT DOT 5 Silicone fluid
Drive chain...................................Chain lubricantssuitable for O-ring chains
Steering and headbearings.........................................Multi-purpose grease
Swingarm pivot bearings............................................Multi-purpose grease
Suspension linkage bearings.......................................Multi-purpose grease
Bearing sel lips.........................................................Multi-purpose grease
Gearchange lever/footrest, rear brake pedal..................Multi-purpose grease
Brake and clutch lever pivots....................................................engine oil Sidestand pivot.......................................................Multi-purpose grease
Throttle grip...........................................................................engine oil
Front brake lever piston tip................................................silicone grease
Cables...........................................................engine oil or cable lubricant
Torque settings
Coolant drain bolts
Water pump drain bolt................................................................12Nm
Radiator drain bolts....................................................................10Nm
Engine oil drain bolts
Engine drain bolt........................................................................12Nm
Oil tank drain bolt......................................................................15Nm
Handlebar position bolts.................................................................11Nm
Handlebar clamp bolts....................................................................25Nm
Intake duct bolts..........................................................................19Nm
Oil filter cover bolts.......................................................................11Nm
Oil tank strainer............................................................................30Nm
Rear axle nut....................................................................90 tom100Nm
Spark plugs.................................................................................20Nm
Steeraing head bearing adjuster......................................................40Nm
Steering stem nut
1998 to 2000 with plain nut.........................................................80Nm
2001 to 2003 with drilled nut......................................................100Nm
Top yoke fork clamp bolts..............................................................25Nm
These are the informations provided by the Haynes manual. Definitly a "Nice to know":thumbup
Engine
Engine idle speed......................................................... 1250 +/- 100 rpm
Spark plugs type........................................ NGK DCPR9E or NGK DCPR9EVX
Electrode gap....................................................................0,6 to 0,7mm
Valve clearance (cold engine) intake.......................................0,12 to 0,17
Valve clearance (cold engine) exhaust.....................................0,23 to 0,28
Cylinder compression.................................180 to 150 psi not below 120 psi
Miscellaneous
Drive chain slack.....................................25mm with bike on auxiliary stand
Throttle twistgrip freepl............................................................2 to 3mm
Fast idle lever freeplay.............................................................2 to 3mm
Recommenden lubricants and fluids
Engine/transmission oil type......................................API grade SG motoroil
Engine/transmission oil viscosity..............................................SAE 15W50
Engine/transmission oil capacity.................3,9l incl filter change 3,7l without
Coolant type........................................50% destilled water 50% antifreeze
Coolant capacity (total)........................................................approx. 2,5l
Brake and clutch fluid...............................DOT 5.1 NOT DOT 5 Silicone fluid
Drive chain...................................Chain lubricantssuitable for O-ring chains
Steering and headbearings.........................................Multi-purpose grease
Swingarm pivot bearings............................................Multi-purpose grease
Suspension linkage bearings.......................................Multi-purpose grease
Bearing sel lips.........................................................Multi-purpose grease
Gearchange lever/footrest, rear brake pedal..................Multi-purpose grease
Brake and clutch lever pivots....................................................engine oil Sidestand pivot.......................................................Multi-purpose grease
Throttle grip...........................................................................engine oil
Front brake lever piston tip................................................silicone grease
Cables...........................................................engine oil or cable lubricant
Torque settings
Coolant drain bolts
Water pump drain bolt................................................................12Nm
Radiator drain bolts....................................................................10Nm
Engine oil drain bolts
Engine drain bolt........................................................................12Nm
Oil tank drain bolt......................................................................15Nm
Handlebar position bolts.................................................................11Nm
Handlebar clamp bolts....................................................................25Nm
Intake duct bolts..........................................................................19Nm
Oil filter cover bolts.......................................................................11Nm
Oil tank strainer............................................................................30Nm
Rear axle nut....................................................................90 tom100Nm
Spark plugs.................................................................................20Nm
Steeraing head bearing adjuster......................................................40Nm
Steering stem nut
1998 to 2000 with plain nut.........................................................80Nm
2001 to 2003 with drilled nut......................................................100Nm
Top yoke fork clamp bolts..............................................................25Nm
These are the informations provided by the Haynes manual. Definitly a "Nice to know":thumbup
