Engine Homologation.pdf

Engine Specifications:

Engine Type: OK
Manufacturer: IAME S.p.A. - ZINGONIA
Model: REESTER 5
Inlet Type: Reed Valve
Homologation Validity: 3 years
Number of Pages: 20

Technical Information:

Cylinder:
+ Volume: 124.08 cm³
+ Original Bore: 53.89 mm
+ Theoretical Maximum Bore: 54.08 mm
+ Stroke: 54.40 mm
Crankshaft:
+ Number of Bearings: 2
+ Diameter of Bearings: 25 mm
+ Weight: 1925 g (minimum)
Balance Shaft:
+ Weight: 195 g (minimum)
+ Percentage of Balancing: 25% (minimum)
Connecting Rod:
+ Length: 104 mm
+ Diameter of Big End: 26 mm
+ Diameter of Small End: 19 mm
+ Weight: 89 g (minimum)
Piston:
+ Number of Rings: 1
+ Weight (including rings): 110 g (minimum)
Materials:
+ Cylinder Head: Al-Si or Al-Si+Fe or Al-Si+Cu
+ Cylinder: AL-SI / FONTE
+ Sump: AL-SI
+ Crankshaft: ACIER NI-CR-MO
+ Connecting Rod: ACIER NI-CR-MO
+ Piston: AL-SI

Photos, Drawings, and Graphs:

Section D.1: Cylinder Unit
Section D.2: Crankshaft, Conrod, Piston, and Crankcase
Section D.3: Balance Shaft
Section D.4: Reed Valve
Section D.5: Complete Engine

Opening Angles:

Exhaust: according to regulations

Tolerances and Remarks:

Number of decimal places: 2 or comply with relevant tolerance
Tolerances and remarks for various engine components are specified throughout the document.