Yamaha SUPER TENERE XTZ750 [138/425] Inspection and repair

Содержание

INSPECTION AND REPAIR ENG VALVE SEAT 1 Eliminate Carbon deposit from valve face and valve seat 2 Inspect Valve seat Pitting Wear Reface the valve sea 3 Measure Valve seat width a Out of specification Reface valve s Valve seat width Intake 0 9 1 1 mm 0 035 0 043 i Exhaust 0 9 1 1 mm 0 035 0 043 Measurement steps Apply the Mechanic s bluing dye D to the valve face Install the valve into the cylinder head Press the valve through the valve g onto the valve seat to make a clear pat 302 017 Measure the valve seat width Whe valve seat and valve face made con ing will have been removed If the valve seat width is too wide row or seat has not centered the v must be refaced 4 Reface Valve seat Use a 30 45 and 60 valve seat c yalve seat cutter YM 91043 ACAUTION When twisting cutter keep an eve ward pressure 4 5 kg to preven marks 4 29