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Speed B21 Ty Tessmann II Limited Edition Engine Speed B21 Ty Tessmann II Limited Edition Engine Speed B21 Ty Tessmann II Limited Edition Engine Speed B21 Ty Tessmann II Limited Edition Engine Speed B21 Ty Tessmann II Limited Edition Engine Speed B21 Ty Tessmann II Limited Edition Engine
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Bore: 0.65 in (16.4 mm)
Carb Type: O.S. 21J3 (B) slide valve w/5.8mm reducer
Crankshaft Threads: UNF1/4-28
Cylinders: Single
Displacement: 0.211 cu in (3.49 cc)
HP: 2.65 PS, 2.61 HP @ 34,000 rpm
Height: 3.32 in (84.3 mm) bottom of mounting tab to top of cylinder head
Length: 2.5" (64.5mm) from backplate to front bearing
Plug Type: P3 Turbo Glow Plug
RPM Range: 4,000 - 42,000 rpm
Recommended Fuel: 10-30% nitro content, 20% recommended for break-in
Stroke: 0.65 in (16.4 mm)
Total Weight: 12.6 oz (356 g)
Type: .21 2-stroke 1/8 scale buggy engine
Width: 1.77 in (45 mm) at mounting tabs

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