Engine	PRO- 50BK
Displacement	8.19 c.c. / .500 cu.in.
Bore	22.5 mm / 0.886 in.
Stroke	20.6 mm / 0.811 in.
Practical R.P.M.	3,000 ~ 25,000 rpm
Output (BHP/RPM)	2.60 / 22,000
Weight (g/oz)	475 / 16.75

Designed to achieve the easiest operation and max performance again and again. The PRO-50BK Series have the most raw power & durability simultaneously! The "K" version features a built-in hexagonal shaft starting system, to start it with ease. Of course, the new webbed reinforced compact crankcase is made for added wearing resistance and provides effective heat dispersion to meet the demands of long term usage.

Side exhaust.
ABC construction: Aluminum piston with Cr-plated brass cylinder liner.
Hyperutectic machined Al-Si ringed piston .
High strength connecting rod with bushings pre-installed.
SG crankshaft.
One-piece crankcase with squared-off shape cooling fins.
Dual ball bearing-supported crankshaft.
Machined over-sized heat sink head.
Built-in hexagonal shaft starting backplate.
Three-needle valves slide valve carburetor.
State of the art CNC machined components.

1. PRO-50BK engine x 1 EA
2. Carburetor Assembly x 1 EA
3. Instructional manual x 1 EA
4. TT logo stickerx x 1 EA

Instruction Manual
9445-manual (1 MB)
Parts Catalog
9445-catalog (4 MB)