1986 Ski-Doo Factory Shop Manual, Page 188Get this manual
Section 02 ENGINE Sub-section 09 (537 ENGINE TYPE)
1Cap nut MB 112! 2Cylinder head 3Stud M6 J( 75121 4, Coolant outlet collar LDerile 242 blue (medium strengrM 6, Lock washer mm 141
7 Nut M614)
R Gasket (0 ring) '2J
Gaske! (21
10 Cap nut MB IB) 7' Flat washer 8.4 (81
72 CVlinder 121
13, Cylmdercrankcase gasket 121 14L-rlng 15Rectangular-ring 16, Piston 77Gudgeon pin 18Cirelip (4) 19Neede bearing 20, Cylinder stud MB 79 (8) 21Swd (head} M8 50 (72) 22Gasket 23, Water ourlet socket
CLEANING
Discard all gaskets and a-ringsClean all metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatulaNOTE: The letters AUS lover an arroW on the piston dome} must be visible after cleaningClean the piston ring grooves with groove cleaner tool, or with piece of broken ring,
MEASUREMENTS
Cylinder
TOLERANCES FiniNG NEW PARTS (MIN (MAX
N.AN.A,11 mrn t.0043") ,04 mm .0016"1 .20mm (,0079")
WEAR LIMIT
.OS mm .05 mm .20mm 1.0079"1 .20 mm (.0079"1 1.0 mm L0394")