This is the Ofna Force .26 Pull Start R/C Vehicle Engine with SG Crankshaft.
ABC piston and liner construction
Slide Valve Carburetor with main and throttle needle valves
adjustable with a screwdriver
Threaded (SG) style crankshaft
11 fin anodized Purple cylinder head
One Ofna Force .26 Pull Start R/C Vehicle Engine with brass
crankshaft washer, rubber header gasket and instruction sheet
Long glow plug without idle bar
20% car fuel for break-in
Displacement: .21cu in (4.26cc) Bore: 18.2mm Stroke: 16mm Output: 2.6ps @ 25,000 RPM Practical Range: 3,000-28,000 RPM Distance between mounting holes same side: .43" (11mm) Distance between mounting holes opposite side: 1.5" (38mm) Height/bottom of crankcase to top of cylinder head: 4.3" (110mm) Height/bottom of mounting ears to top of cylinder head: 3.7" (95mm) Length from starter to end of crankshaft: 4.5" (114mm) Length from starter to front bearing: 3.3" (83mm) Width of mounting ears: 1.8" (46mm) Exhaust outlet diameter: .59" (15mm) Carb intake diameter: .53" (13.5mm)
– If you need more information, use these Ofna resources –
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