Sea-doo Bombardier, Руководство пользователя, Страница: 59 / 123

03-30
SECTION 03 - ENGINE PREPARATION
Porting Map for Engines Prior to 1995
SEA-DOO ENGINE SPECIFICATIONS 587 657
Exhaust port height E1 34.0 mm 34.5 mm
Exhaust port width E2 50.0 mm 53.0 mm
Exhaust port height bottom to top E3 34.0 mm 35.0 mm
Rear transfer height B1 52.0 mm 55.5 mm
Rear transfer width B2 17.0 mm 20.0 mm
Rear transfer length bottom to top B3 91.5 mm 97.5 mm
Main transfer height T1
T2 50.5 mm
51.0 mm 54.0 mm
54.0 mm
Bottom width of main transfers T3
T4 26.0 mm
21.0 mm 26.0 mm
21.0 mm
Total cylinder height 109.5 mm 113.5 mm
Exhaust outlet width at Y-pipe 49.0 mm 53.0 mm
Exhaust outlet height at Y-pipe 32.0 mm 33.0 mm
Squish band clearance 1.5 mm 1.1 mm
Cylinder head volume (without piston) 40.8 cc 42.2 cc
Combustion chamber volume with .012” base gasket 27.7 cc 29.5 cc
Uncorrected compression ratio 11.5: 1 12.25: 1
Bore 76 mm 78 mm
Stroke 64 mm 68 mm