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

Ty Tessmann, OS group motorist, won 1/8 off road World Championship in Sicily in October this season. In commemoration of the staggering success, OS Engines are releasing Ty Tessmann limited edition 21 buggy engine. This is really combo set B2101 motor / T2090SC muffler / M2002SC manifold.

Internal framework is the same as SPEED B2101. The countless points are:

• Normal color brain with black colored colored letters
• Engraved crankcase
• Engraved crankshaft
• Engraved muffler
• Carb restrictor is 5.8mm, that could be unavailable in the marketplace but simply making use of this original variation. The 5.8mm restrictor completed up being anticipated by Tessmann in front of the world Championship in Sicily now we especially offered to him your competition. He attempted it and won.
• T-2090SC muffler with M2002SC manifold complete set will not be easily accessible in industry. M2002SC(code #72106480) is usually an optional component. M2002SC is considerably longer than M2000SC. The longer manifold increases torque in low-middle range.
• So the blend of engine/muffler/manifold/carb restrictor is really what he based 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
• bodyweight: 12.42oz (352g)
• Distance Between Mounting Hole Centers identical component: 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 engine
• Carburetor Settings: NOTE carburetor is preset at factory and needs just small improvements
• Needle Valve, 3-1/4 available from entirely closed
• Mixture Control Valve, Flush with carburetor body
• Metering Needle, Flush with ball hyperlink human body
• Throttle Avoid Screw, almost 0.5mm