10.07.2015 Views

general information - Martin Nez

general information - Martin Nez

general information - Martin Nez

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PERIODIC MAINTENANCE 2-9• Turn the crankshaft 360 degrees (one rotation) to bring the“TOP” line on the starter clutch to the index mark of valve timinginspection hole and also to bring the notches A to theposition as shown.• Read the clearance at the rest of the valves C and adjust theclearance if necessary. (below)Notch A positionCam positionExhaust Camshaft Intake CamshaftB ← Front ← FrontC ← Front ← FrontVALVE CLEARANCE ADJUSTMENTThe clearance is adjusted by replacing the existing tappet shimby a thicker or thinner shim.• Remove the intake or exhaust camshafts. (3-15)• Remove the tappet and shim by fingers or magnetic hand.• Check the figures printed on the shim. These figures indicatethe thickness of the shim, as illustrated.• Select a replacement shim that will provide a clearance withinthe specified range. For the purpose of this adjustment, a totalof 25 sizes of tappet shim are available ranging from 1.20 to2.20 mm in steps of 0.05 mm. Fit the selected shim to thevalve stem end, with numbers toward tappet. Be sure tocheck shim size with micrometer to ensure its size. Refer tothe tappet shim selection table (2-11 and -12) for details.1701.70 mm

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