Breaking In (Running In) Engine - Yamaha 55B Owner's Manual

EMF51212
BREAKING IN (RUNNING IN)
Your new engine requires a period of
break-in (running-in) to allow mating sur-
faces of moving parts to wear-in evenly.
Correct break-in (running-in) will help
ensure proper performance and longer
engine life.
cC
8 Failure to follow the break-in (running-
in) procedure may result in reduced
engine life or even severe engine dam-
age.
8 Premix fuel must be used during break-
in (running-in) in addition to oil in
YAMAHA AUTOLUBE SYSTEM.
Break-in (running-in) time:
10 hours
Break-in (running-in) premix ratio
(for Pre-mix model):
Gasoline (Petrol) : Engine oil = 25 : 1
Refer to "Gasoline/Petrol and Oil
Mixing".
Break-in (running-in) premix ratio
(for Autolube System model):
Gasoline (Petrol) : Engine oil = 50 : 1
EMF52010
Gasoline (Petrol)/ Engine oil mixing chart
Mixing ratio
Gasoline (Petrol)
(0.26 US gal, (3.2 US gal, (3.7 US gal, (6.3 US gal,
0.22 Imp gal) 2.6 Imp gal) 3.1 Imp gal) 5.3 Imp gal)
Engine oil
(0.02 US qt, (0.25 US qt, (0.30 US qt, (0.51 US qt,
0.018 Imp qt) 0.21 Imp qt) 0.25 Imp qt) 0.42 Imp qt)
3-10
ENGINE
50 : 1
1 L 12 L 14 L
0.02 L 0.24 L 0.28 L
GB
24 L
0.48 L