engine for emotion
ROS motor
LIGHT FLY ENGINES
5
4
General advice
A scheduled and accurate maintenance programme allows you to get the best performances out of your
engine. That’s why we recommend you to follow the instructions given by this technical handbook.
This manual refers only to ROS 100 Light and ROS 125 Light.
For any further information, please contact us at the address and numbers you find in the “Contact” section.
ATTENTION:
This is not a certified engine! Use it only in applications where a sudden and unexpected
engine failure does not cause damages to things and people.
The data given in this manual may change and the manufacturer is not obliged to provide any updates.
Technical Handbook: Rev 1.0 – 2008
Component description
Head
The head is made of high quality aluminium alloy by shell casting, (shell is an exclusive
property of Ros motor). We developed the combustion camber to achieve good efficiency.
Cylinder
Cylinders are made of high quality aluminium alloy by shell casting (shell is an exclusive
property of Ros motor). A high number of fins increase the surface area on which air can
act. This allows an optimal cooling. The transfer ports are designed to obtain high perfor-
mances in a wide range of rpm.
We have embodied the decompressor valve to get an easy start.
Piston
A high quality manufacturer produces the pistons upon our instructions. It is made of alu-
minium alloy with a single ring. It has a friction surface coated with a layer of molybde-
num disulfide.
Crankcase
The crankcase is produced by earth casting. This technique allows to use a high quality
aluminium alloy. After casting, the crankcase is subjected to hardening treatment.
Crankshaft
The crankshaft is made of high quality steel. The producer provides for the balancing fol-
lowing our instructions, thus obtaining a very low vibration level.
engine for emotion
ROS motor
LIGHT FLY ENGINES
