This is the O.S. Engines Speed B2102 1/8 scale Competition Buggy Engine with the T2090SC Tuned Pipe.

****** Because of the expressed racing nature of this engine, it is NOT covered by the O.S. 2 Year Warranty ******

FEATURES: Low cylinder head reduces the buggy's center of gravity by 0.67"
(17mm) for better stability during aggressive driving
Newly designed 22C slide valve carburetor for better fuel economy
Tungsten weighted crankshaft with diamond-like coating and silicon
potting
Bypass of crankcase is modified for better performance
Tuned pipe is constructed of aluminum with polished natural finish
and has an EFRA-2089 noise rating

INCLUDES:
O.S. Engines Speed B2102 Engine with P3 Turbo Glow Plug
T2090SC Tuned Pipe
6.5mm Carburetor Reducer in Red
Exhaust Seal Ring
One each 3mm, 16mm and 18mm Dust Caps
Instruction Manual

REQUIRES: Fuel: 10-30% nitro content, 20% recommended for break-in, Air filter, glow starter and track equipment

SPECS: Engine;

• Displacement: 0.211 cu (3.46 cc)
• Bore: 0.646 in (16.40 mm)
• Stroke: 0.646 in (16.40 mm)
• Practical RPM: 4,000-42,000
• Power Output: 2.65 PS/2.61 hp @ 34,000 rpm
• Crankshaft Size: UNF1/4-28
• Distance/Mounting Hole Centers Same Side: 0.83" (21mm)
• Distance/Mounting Hole Centers Opposite Side: 1.45" (37mm)
• Width of Crankcase below Mounting Tabs: 1.2" (31.6mm)
• Width of Mounting Tabs: 1.8" (45mm)
• Height/Mounting Tab to top of Cylinder Head: 2.6" (65.9mm)
• Height/Mounting Tab to center of Exhaust Outlet: 1.1" (28mm)
• Height Crankcase Bottom to top of Cylinder Head: 3.2" (81.5mm)
• Length of Crankshaft end to Front Bearing: 1.2" (29.5mm)
• Length of Crankshaft end to Backplate: 3.7" (94mm)
• Length of Crankshaft end to Center of Crankcase: 2.9" (73.5mm)

Carburetor Settings; (Carburetor is preset from factory and should only require very small adjustments)
Needle Valve: 3 turns open from fully closed 
Mixture Control Valve: One turn screwed in from flush position with carb body 
Metering Needle: 0.3-0.4mm protruding from flush position with carb body
Throttle Stop Screw: Approximately 0.5mm from carb body when viewed from above