O.S. Engine OS-1A203 - O.S. Speed B2101-TY w/T2090-TY Header and Silencer  [OS-1A203]

Ty Tessmann, OS team motorist, won 1/8 off-road World Championship in Sicily in October in 2010. In commemoration of his staggering success, OS Engines are releasing Ty Tessmann limited edition 21 buggy motor. This is certainly combo set B2101 motor / T2090SC muffler / M2002SC manifold.

Internal framework is equivalent to SPEED B2101. The various points are:

• Natural color head with black letters
• Engraved crankcase
• Engraved crankshaft
• Engraved muffler
• Carb restrictor is 5.8mm, which can be not available on the market but only using this unique edition. The 5.8mm restrictor ended up being expected by Tessmann before the entire world Championship in Sicily and now we specifically provided to him for the competition. He used it and won.
• T-2090SC muffler with M2002SC manifold complete set just isn't obtainable in the market. M2002SC(code #72106480) is usually an optional part. M2002SC is much longer than M2000SC. The longer manifold increases torque in low-middle range.
• So the mix of engine/muffler/manifold/carb restrictor is really what he utilized in the Worlds and just available by this limited version.

Spec:

• Displacement: 0.211 cu in (3.46cc)
• Bore: 0.646" (16.4mm)
• Stroke: 0.646" (16.4mm)
• Practical RPM: 4,000-42,000 RPM
• Production: 2.61hp @ 34,000RPM
• Body weight: 12.42oz (352g)
• Distance Between Mounting Hole Centers Exact Same Part: 0.83" (21mm)
• Distance Between Mounting Holes Opposite Side: 1.4" (37mm)
• Height Bottom of Mounting Tabs/Top of Cylinder Head: 3.2" (82.6mm)
• Width of Mounting Tabs: 1.8" (45mm)
• Distance from Backplate to Front Bearing: 2.5" (64.5mm)
• Distance from Center of Crankshaft to Front Bearing: 1.7" (44mm)
• Distance from Center of Crankshaft to Backplate: 0.81" (20.5mm)
• Crankshaft Size: UNF1/4-28
• Crankshaft Length: 1.2" (29.5mm) outside of motor
• Carburetor Settings: NOTE carburetor is preset at factory and needs only tiny adjustments
• Needle Valve, 3-1/4 available from fully closed
• Mixture Control Valve, Flush with carburetor human anatomy
• Metering Needle, Flush with ball website link human body
• Throttle Avoid Screw, More Or Less 0.5mm