Benelli TNT125 - Page 11

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Fault phenomenon—Slight burning phenomenon ..................................................................... - 189 -

Fault phenomenon—Fault lamp is on, but fault code is inconsistent with fault ........................ - 189 -

Fault phenomenon—Extremely high fuel consumption ............................................................ - 190 -

Fault diagnosis instructions for Delphi .............................................................................................. - 191 -

Chapter IV Engine ............................................................................................................................................. - 193 -

Main Parameters of Engine ....................................................................................................................... - 197 -

Lubrication System .................................................................................................................................... - 198 -

Diagram of Lubrication System ......................................................................................................... - 198 -

Position of Fuel pump ........................................................................................................................ - 200 -

Preparation Information ..................................................................................................................... - 202 -

Conventional Information .......................................................................................................... - 202 -

Technical Parameters ......................................................................................................................... - 203 -

Torque Value .............................................................................................................................. - 203 -

Special Tools ...................................................................................................................................... - 204 -

Troubleshooting ................................................................................................................................. - 205 -

Oil level is too low ..................................................................................................................... - 205 -

Oil pressure is low ..................................................................................................................... - 205 -

There is no oil pressure .............................................................................................................. - 205 -

Oil pressure is high .................................................................................................................... - 205 -

Oil is polluted ............................................................................................................................ - 205 -

Oil is emulsified ......................................................................................................................... - 205 -

Checking Fuel pump .......................................................................................................................... - 206 -

Cylinder Head / Distribution ..................................................................................................................... - 207 -

Exploded View of Cylinder Head / Distribution ................................................................................ - 207 -

Preparation Information ..................................................................................................................... - 208 -

Techn

ical Parameters ......................................................................................................................... - 208 -

Torque Value .............................................................................................................................. - 208 -

Fault Diagnosis .................................................................................................................................. - 209 -

Compression pressure is low ..................................................................................................... - 209 -

The sound of cylinder head is abnormal .................................................................................... - 209 -

Compression pressure is too high .............................................................................................. - 209 -

Special Tools ...................................................................................................................................... - 210 -

Cylinder Head .................................................................................................................................... - 211 -

Disassembling Cylinder Head ................................................................................................... - 211 -

Checking Cylinder Head ............................................................................................................ - 214 -

Replacing Valve Guide .............................................................................................................. - 216 -

Finishing Valve Seat Ring .......................................................................................................... - 218 -

Cylinder Block / Piston .............................................................................................................................. - 221 -

Exploded View of Cylinder Block / Piston ........................................................................................ - 221 -

Exploded View of Crankshaft ............................................................................................................ - 222 -

Preparation Information ..................................................................................................................... - 223 -

Technical Parameters ......................................................................................................................... - 224 -

Torque Value .............................................................................................................................. - 224 -

Fault Diagnosis .................................................................................................................................. - 225 -

Compression pressure is low ..................................................................................................... - 225 -

Compression pressure is high .................................................................................................... - 225 -

Exhaust pipe is emitting white smoke ....................................................................................... - 225 -