Robin EY28 Service 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 EY28 Specifications

General

Ignition System	Transistorized magneto ignition
Starting System	Recoil starter
Fuel System	Carburetor
Lubrication System	Splash
Dry Weight	25 kg
Cooling System	Air-cooled