250 PISTONS


72
72 mm
Standard
72.20
72.20 mm
1 st oversize
72.40
72.40 mm
2nd oversize
72.60
72.60 mm
3rd oversize
 
175 PISTONS
  
60.90
 60.90 mm
Standard
61.10
61.10 mm
1 st oversize
61.30
61.30 mm
2nd oversize
61.50
61.50 mm 
3rd oversize

 FIG. 69
 
 

NEW PISTON MEASUREMENT CHART
Measurement in Inches


 
250 c.c. 72 mm
  
Metric Size
    
Standard 72 mm
  
2.8334" to 2.8344"
lst oversize 72.20 mm
  
 2.8414" to 2.8424"
2nd oversize 72.40 mrn
  
2.8492" to 2.8502"
3rd oversize 72.60 mm
  
2.8570" to 2.8580"
 
175 c.c. 72 mm
  
Standard 60.90 mm
  
2.3960" to 2.3968"
lst oversize 61.10 mm
  
2.4040" to 2.4048"
2nd oversize 61.30 mm
  
2.4118" to 2.4126"
3rd oversize 61.50 mm 
  
2.4200" to 2.4208"

FIG. 70
 
 

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