Kawasaki S2 (1972-1973) Инструкция по эксплуатации онлайн [25/129] 114654

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c Piston wear I As the diagram shows the piston ri grooves become worn due to ring moveme Since this leads to compression leakage and a dr in output power replace the piston if groo measurement indicates excessive wear Al if either of the ring grooves is worn unevenly if the groove has changed in shape the pist must be replaced b Carbon Removal 1 Piston top Check the top of the piston for carbon and scrape off any accumulation with a screwdriver or hacksaw blade This carbon reduces the cooling capacity of the piston and as the carbon turns red hot causes the piston to overheat and possibly melt 2 Piston pressure against the sides of cylinder causes piston wear Measure pis diameter al he skirt 20 in 5 mm up from bottom of he piston at right angles to the pis 2 Ring groove Carbon accumulation in the ring groove can cause the ring to stick Check the groove and remove any carbon with a piece of broken ring or other thin tool pin d Piston Clearance If the piston is replaced piston clearance of new piston must be measured See page 21 e Connecting Rod Small End Play Insert the piston pin and the needle treat into the small end of the connecting rod a measure the play with a dial gauge If p exceeds he service limit replace the nee bearing and piston pin Standard play 00012 OO088 in 0 003 0 022 mm Service limit 0039 in 0 10 mm Table 7 Piston Specifications SI KH250 Second Groove width x depth Skirt Dia inch 7 0 0002 0 0 001 mm 44 975 005 0 025 i5X 25i6 05 inch 0 0002 2URSA 0856 0 001 0591 00j9 x 0984 0039 0591 mm 52 975 0 0S 0591 l x 0 1019 0 1040 VUJ1 0591 I nmixO Wl 9 0 104 UU16 S2 S3 I op Groove width x depth Model inch 2 2415 0 0002 0 001 0 005 0591 oo3ix 099 0591 991 0020 UU1O JU1O 0039

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