Yamaha YZF-R125 Service Manual: Engine tightening torques

Engine tightening torques


Engine tightening torques


Cylinder head tightening sequence:


Generator cover tightening sequence:


Clutch cover tightening sequence:


Crankcase tightening sequence:

Crankcase tightening sequence


A. Left crankcase

B. Right crankcase

    General tightening torque specifications
    This chart specifies tightening torques for standard fasteners with a standard ISO thread pitch. Tightening torque specifications for special components or assemblies are provided for each chapt ...

    Chassis tightening torques
    NOTE: First, tighten the lower ring nut to approximately 48 Nm (4.8 m.kg, 35 ft.lb) with a torque wrench, then loosen the lower ring nut completely. Retighten the lower ring nut to ...

    Other materials:

    Checking the camshaft sprocket and timing chain guide
    1. Check: Camshaft sprocket More than 1/4 tooth wear "a" Replace the camshaft sprocket, timing chain and crankshaft as a set. a. 1/4 tooth b. Correct 1. Timing chain roller 2. Camshaft sprocket 2. Check: Timing chain guide (exhaust side) Damage/wear Replace. ...

    Checking the lean angle sensor
    1. Remove: Lean angle sensor 2. Check: Lean angle sensor output voltage Out of specification Replace. a. Connect the lean angle sensor to the wire harness. b. Connect the pocket tester (DC 20 V) to the lean angle sensor coupler as shown. Positive tester probe yellow/green "1" Neg ...

    Checking the front wheel
    1. Check: Front wheel axle Roll the wheel axle on a flat surface. Bends → Replace. WARNINGDo not attempt to straighten a bent wheel axle. 2. Check: Tire Front wheel Damage/wear → Replace. Refer to "CHECKING THE TIRES" on page 3-23 and "CHECKING TH ...

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