37 SZ-H Ring 20M Carburetor

REQUIRES: Muffler, Heli fuel with 10%-30% nitro content

• SPECS Displacement: 0.37 cu in (6.07cc)
  
• Bore: 0.806 in (20.5mm) Stroke: 0.725 in (18.4mm)
  
•  Practical RPM range: 2000-21,000 Output: 1.4 ps @ 18,000 RPM Weight: 10.3oz (293g)
•  Crankshaft Size: 1/4-28
  
•  Distance between mounting holes same side: 0.6" (15mm)
  
•  Distance between mounting holes opposite side: 1.5" (38mm)
  
• Width including mounting flanges: 1.8" (45mm)
  
• Width neglecting mounting flanges: 1.5" (38mm)
  
•  Height/bottom of crankcase to top of cylinder head: 3" (76mm)
•  Height/bottom mounting flanges to top of cylinder head: 2.4" (61mm)
  
•  Distance/center of crankcase to front bearing: 1.8" (46mm)
•  Distance from backplate to front bearing: 2.6" (67mm)
•  Distance from backplate to end of crankshaft: 3.7" (94mm)
•  Low speed needle 1 turn IN from flush with carb body
•  High speed needle 1.5 turns OUT from closed