Subaru Robin EX35 User Manual
Page 48
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Step
Model EX35
Model EX40
Engine Speed
Time
Step 1
No Load
2500 r.p.m.
10 min.
Step 2
No Load
3000 r.p.m.
10 min.
Step 3
No Load
3600 r.p.m.
10 min.
Step 4
4.3 HP
4.8 HP
3600 r.p.m.
30 min.
Step 5
8.5 HP
9.5 HP
3600 r.p.m.
30 min.
(33) BREAK-IN OPERATION
A new engine or an engine that has been completely overhauled by being fitted with a new piston,
rings, valves and connecting rod should be thoroughly RUN-IN before being put back into service.
Good bearing surfaces and running clearances between the various parts can only be established by
operating the engine under reduced speed and loads for a short period of time.
While the engine is being tested, check for oil leaks.
Make final carburetor adjustment and regulate the engine operating speed.
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