Yamaha YZF-R125 Service Manual: Assembling the crankcase

Yamaha YZF-R125 Service Manual / Engine / Crankcase / Assembling the crankcase

1. Thoroughly clean all the gasket mating surfaces and crankcase mating surfaces.

2. Apply:

  • Sealant (onto the crankcase mating surfaces)

NOTE:

Do not allow any sealant to come into contact with the oil gallery.

Assembling the crankcase


3. Install:

  • Right crankcase

NOTE:

Turn the shift drum segment "1" to the position shown in the illustration. In this position, the shift drum segment teeth will not contact the crankcase during crankcase installation.

Assembling the crankcase


4. Install:

  • Crankcase bolts

NOTE:

Tighten each bolt 1/4 of a turn at a time, in stages and in the proper sequence as shown.

  • M6 × 70 mm : "7-9", "11"
  • M6 × 55 mm : "14", "15"
  • M6 × 45 mm : "1-5", "10"

Assembling the crankcase


A. Left crankcase

B. Right crankcase

    Installing the bearing retainer
    1. Install: Bearing retainer "1" NOTE: Install the bearing retainer "1" with its "OUT" mark "a" facing outward. Apply locking agent (LOCTITE) to the threads of the bearing retainer bo ...

    Crankshaft
    ...

    Other materials:

    Checking and lubricating the cables
    The following procedure applies to all of the inner and outer cables. WARNINGDamaged outer cable may cause the cable to corrode and interfere with its movement. Replace damaged outer cable and inner cables as soon as possible. 1. Check: Outer cable Damage Replace. 2 ...

    Protective apparel
    The majority of fatalities from motorcycle accidents are the result of head injuries. The use of a safety helmet is the single most critical factor in the prevention or reduction of head injuries. Always wear an approved helmet. Wear a face shield or goggles. Wind in your unprotecte ...

    Installing the relay arm
    1. Lubricate: Spacers Bearings Oil seals Bolts (unthreaded shaft portion only) 2. Install: Bearing "1" (to the relay arm) Oil seal "2" (to the relay arm) 3. Rear shock absorber assembly 4. Relay arm 5. Connecting arm A. Left side B. Right side ...

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