Technical information

C
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CHAPTER
PAGEISSUE
TWO-STROKE ENGINE AM6
ENGLISH
SECTION 3
C - ENGINE
Minarelli Engine
SECTION 2
F.34
10 mm
F.35
The maximum end float is 0.10 mm, exceeding which, the piston should be replaced. See the chart below.
Important: maintain the same identification letters on the cylinder and piston. The cylinder identification letter
can be found on the flat surface of the oiler.
10) WATER PUMP
a) Place the clutch crankcase (right hand side) on a flat surface.
b) Fit the oil seal in the right direction, as shown (F.35).
c) Fit the impeller, gasket, dowels and water pump cover.
COUPLING
CHART
ENGINE TYPE MIN./MAX. PLAY TOLE.PISTON TOLE. CYLINDER SELECTION
AM 50 (WATER COOLED) 0.049 000000 –0.063 –0.057 –0.007 –0.002 Y
piston code 62.0412.0 –0.056 –0-050 –0.001 +0.006 Z
(CILINDRO IN GHISA) 000000 –0.049 –0.043 +0.007 +0.012 V
(CAST IRON CYLINDER) 000000 0.062
POSITION THE THERMOSTAT
HOLE, AS SHOWN
Repeat the measurements in several positions along the cylinder jacket, between the top face of the cylinder
and the exhaust gap (F.34).
Then check the diameter of the piston and compare it with that of the cylinder (F.33).