Robin EY15 User Manual

9. BREAK-IN OPERATION of REASSEMBLED ENGINE
An overhauled engine must be operated at low speed break-in the parts. A thorough break-in is indispensable particularly
when
the cylinder, piston,:piston rings or valves are replaced with new ones.
The recommended break-in schedule is shown below.
LOAD
SPEED
TIME
CRANKSHAFT REV.)
EY15 EY20 EY28
NO LOAD 2,500 rpm
10 minutes
NO LOAD 3,000 rpm
10 minutes
I
NO LOAD I 3,600 rpm 1 10 minutes
I
1 I 2.75 HP
1.35
HP 1.75 HP
I 3,600 rpm I 30 minutes
I
I 3.5 HP I 5.5 HP
2.7 HP
I 3,600 rpm, I 60 minutes
-45 -

Robin EY15 Specifications

General

Ignition System	Transistorized magneto
Starting System	Recoil starter
Compression Ratio	8.5:1
Fuel System	Carburetor
Engine Type	Single cylinder, 4-stroke, air-cooled
Displacement	143 cc
Maximum Torque	9.3 Nm / 3000 rpm
Dry Weight	13.5 kg
Lubrication	Splash