Saito FA-60T Instruction Manual page 6

4
S T A R T I N G T H E E N G I N E
Break-In
The first run on any engine, wheter
2-cycle or 4-cycle, is critical to the
future of the engine itself. During this
time, metal mating parts (piston and
cylinder, ball bearings, etc.) wear in.
Care must be taken that the engine is
clean and free of any dust or grit that
may have accumulated while
building the model.
There are two accepted methods for
breaking in a new engine: test stand
mounted and run or aircraft mounted
and run. Either method is acceptable,
however, mounting the engine to a test
stand allows the engine to bo observed
throughout its operation, as well as
elevating it above the ground and away
from harmful dust and dirt.
NOTE: Because your engine may
have been sitting for an extended
period of time prior to running it, a few
drops of light oil applied through the
crankcase breather nipple (19 on the
exploded view), if applicable, and down
the pushrod tubes (40) will ensure
proper lubrication for the first run.
Regardless of the mounting method
chosen for break-in, the following
procedures are applicable:
1. Use a break-in fuel as described in
the"Support Equipment"Section on
page 3 of this manual.
2. Use the proper glow plugs. Your
engine includes the Saito 400P
(SAIP400S glow plug(s), which are
also the standard replacement glow
plugs for these engines You can also use
Hanger 9's Four Cycle Super Plug
(HAN3011).
3. Select the correct propeller. To do
so, refer to the Propeller Selection
Chart on page 18 of this manual.
4. Make sure that the high speed needle
valve(s)(85) are opened (turned
counterclockwise) five full turns. This
guarantees a very rich setting.
Do not adjust the low-speed needle
valve(s) or airbleed screws (89) at this
time. The low speed needle valve(s), or
airbleed screws, are pre-adjusted at the
factory for initial break-in.
5. The use of tachometer (HAN111) is
highly recommended since the
adjustment of a four-cycle engine:
while similar to that of a 2-cycle
engine, is more difficult to"set by ear,"
therefore making it easier to damage
the engine by"over leaning."