Yamaha YZF-R1 2007 Service Manual

CRANKSHAFT5-76p. After the installation, check that the sectionshown “a” is flush with each other by touch-ing the surface.• Side machined face “a”WARNINGEW2D1008• When the bolt is tightened more than thespecified angle, do not loosen the boltand then retighten it.Replace the bolt with a new one and per-form the procedure again.• If they are not flush with each other,remove the connecting rod bolt and bigend bearing and restart from step “e”. Inthis case, make sure to replace the con-necting rod bolt.CAUTION:ECA4C81010• Do not use a torque wrench to tighten thenut to the specified angle.• Tighten the bolt until it is at the specifiedangles.q. Remove the connecting rod and big endbearings.Refer to "REMOVING THE CONNECTINGRODS AND PISTONS" on page 5-71.r. Measure the compressed Plastigauge®width on the crankshaft pin.If the crankshaft-pin-to-big-end-bearingclearance is out of specification, selectreplacement big end bearings.▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲2. Select:• Big end bearings (P1 – P4)NOTE:• The numbers “A” stamped into the crank-shaft wed and the numbers “1” on the con-necting rods are used to determine thereplacement big end bearings sizes.• “P1” - ”P4” refer to the bearings shown in thecrankshaft illustration.For example, if the connecting rod “P 1 ” andthe crankshaft web “P 1 ” numbers are “5”and “2” respectively, then the bearing sizefor “P1 ” is:“P1” (connecting rod) – “P 1”(crankshaft) =5 – 2 = 3 (brown)Bearing color code1.Blue 2.Black 3.Brown4.GreenManuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keysemail: info@motomatrix.co.uk