Product
PRO-21M-OB (1.04:1)
 |
Description | PRO-21M-OB (1.04:1) |
| Item No | 9568 | |
| Category | Engine >>> Nitro Engine >>> 2-Stroke Marine PRO Series | |
| Update Data | 2008-11-21 | |
Basic Specification
|
Engine |
PRO- 21M-OB |
|
Displacement |
3.46 c.c. / .211 cu.in. |
|
Bore |
16.6 mm / 0.654 in. |
|
Stroke |
16.0 mm / 0.630 in. |
|
Practical R.P.M. |
3,000 ~ 38,000 rpm |
|
Output (BHP/RPM) |
2.10 / 30,000 |
|
Weight (g/oz) |
720 / 25.39 |
Introduction
Thunder Tiger's .21 Outboard engine features a fresh, innovative design that is sure to increase the popularity of the 3.5cc Tunnel Hull class. A race-proven Pro.21 M-R power head is mated to a lower unit that utilizes the best aspects of gear and flex-cable drive technology. A special set of precision helical gears transfers power from the crankshaft to the flex-cable, resulting in substantially reduced cable wear and maintenance, while the integrated expansion chamber/muffler reduces exhaust noise. The engine mount allows adjustment to both propeller depth and angle, and a Prather S215 prop. is also included.
Features
Side exhaust. ABN construction : Aluminum piston with Nichel-plated brass cylinder liner. Hyperutectic machined Al-Si ringed piston. High strength connecting rod with bushings pre-installed. SG crankshaft for clutch system. Water-Cooled Cylinder Head. One-piece crankcase with squared-off shape cooling fins. Dual ball bearing-supported crankshaft. 2 Needle valves carburetor. 9mm carb bore. Vertical mounted main needle valve State of the art CNC machined components. Redline R2 glow plug included. Flywheel, Clutch, Coupling, Water-cooled header (optional). Tuned pipe (No. 9723) available.
Content
1. PRO-21MOB engine x 1 EA
2. Carburetor Assembly x 1 EA
3. Allen wrench x 3 EA (2.5mm ＆2mm ＆3mm)
4. Instructional manual x 1 EA
5. TT logo sticker x 1 EA
2. Carburetor Assembly x 1 EA
3. Allen wrench x 3 EA (2.5mm ＆2mm ＆3mm)
4. Instructional manual x 1 EA
5. TT logo sticker x 1 EA