Honda CB350 CL350 [134/219] Electrical starter

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5 5 ELECTRICAL STARTER 1 When the starting motor is operated following sequence of events take place 123 the a The chain is driven in the direction of arrow a in the Fig 5 57 b As the sprocket revolves the rollers move into the narrowing space between the clutch outer and the starting sprocket as indicated by arrow b and the clutch outer starts revolving together with the starting sprocket likewise with the dynamo rotor which is assembled to the clutch outer c The rotor is fixed to the crankshaft by a 4 mm key and in this way the rotation of the clutch outer is transmitted to the crankshaft Starting chain Starting sprocket Roller Clutch outer 5 Roller spring cap Roller spring Left crankshaft 21mm bushing Fig _5 57 d The starting clutch roller spring and cap permits the rollers to affect a smooth locking between the starting sprocket and the clutch outer 2 When the engine starts the following sequence of events will take place a The crankshaft RPM will exceed the speed of the sprocket b The rollers are moved toward the wider space between the starting sprocket and the clutch outer by the centrifugal force and the friction overriding the force of the spring This causes a discontinuity between the starting motor and the crank shaft power transmission 3 Lubrication oil which has been supplied to the left crankshaft main bearing flows through the groove of the starting sprocket bushing and returns to the crankcase by the clearance between the clutch outer and the AC dynamo Fig 5 57 58 4 Servicing The serviciability of the starting clutch is dependent upon the function of the roller therefore exercise the following precautions when handling the rollers a Use only the specified silicon grease as lubricant on the rollers Starting chain Starting sprocket Roller Clutch outer A C generator rotor Cross point head screw Woodruff key Left crankshaft 21 mm bushing Bearing holder Roller Fig 5 58

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