KEY
X = Crankshaft category
Y = Crankcase half-shell category
A = Red
B = Blue
C = Yellow
D = Green
In case of breakdown, crankcases are together with bushings and are classified according to the centre
to centre distance of the countershaft. Find below the possible couplings.
- Complete FC1 type crankcase equipped with bushings for housing a category 1 crankshaft and a
countershaft with centre to centre distance A.
- Complete FC2 type crankcase equipped with bushings for housing a category 2 crankshaft and a
countershaft with centre to centre distance A.
- Complete FC3 type crankcase equipped with bushings for housing a category 1 crankshaft and a
countershaft with centre to centre distance B.
- Complete FC4 type crankcase equipped with bushings for housing a category 2 crankshaft and a
countershaft with centre to centre distance B.
N.B.
THE CRANKSHAFT CATEGORY IS STAMPED ON THE COUNTERWEIGHT SHOULDER.
A spare crankcase cannot be combined with a driving shaft with mixed categories. Spare shafts have
half-shafts of the same category.
N.B.
TO REPLACE THE HALF-SHAFTS, REMOVE THE COUNTERSHAFT BEARINGS AS DESCRIBED
ABOVE. REMOVE THE COMPLETE DRIVEN PULLEY AND THE ANTI-FLAPPING ROLLER FROM
Fuoco 500 i.e. Engine
ENG - 89
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