Rato R160, Service Manual

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13
Piston
Skirt O.D.
Piston-to-cylinder clearance
Piston pin bore I.D.
Piston pin O.D.
Piston pin-to-piston pin bore clearance
79.975-79.985mm
0.015-0.04mm
15 .002-15.008mm
14.992-14.998mm
0.004-0.016mm
79.85mm
0.12mm
15.242mm
14.95mm
0.08mm
Piston rings
Ring side clearance: first/ second
Oil
Ring end gap: first/second
Oil
Ring width: first/second
Oil
0.025-0.06mm
--
0.20-0.40mm
0.30-0.50mm
0.2-0.7mm
2.8-3.0mm
2.45-2.75mm
0.15mm
--
1.0mm
1.0mm
1.0mm
1.37mm
2.0mm
Connecting
rod
Small end I.D
Big end I.D
Big end oil clearance
Big end side clearance
15.011-15.022mm
33.025-33.039mm
0.013-0.03mm
0.25-0.65mm
15.27mm
33.07mm
0.12mm
1.0mm
Crankshaft Crankshaft pin O.D 32.975-32.985mm 32.92mm
Valves
Valve clearance
Stem O.D.
Guide I.D.
Stem clearance
Seat width
Spring free length
IN
EX
IN
EX
IN/EX
IN
EX
0.10-0.15mm
0.15-0.20mm
5.468-5.48mm
5.43-5.445mm
5.485-5.5mm
0.005-0.032mm
0.04-0.07mm
0.8-1.0mm
38.5-39.5mm
--
--
5.34mm
5.3mm
5.56mm
0.10mm
0.12mm
2.0mm
37.5mm
camshaft
Cam height
Journal O.D
IN
EX
6.045mm
5.766mm
16.166-16.184mm
5.95mm
5.65mm
16.12mm
Crankcase
cover
Camshaft holder I.D 16.2-16.218mm 16.248mm
Carburetor
Main jet
Float height
Pilot screw opening
Φ 2
1-3mm
2-7/8 circle
--
--
--
Spark plug Gap 0.7-0.8mm --