User manual

When starting the engine for the first time ,set both the high speed needle 1.75turn open, the slow
speed needle 1.5turn open .with this position both high and slow speed mixtures will be rich.if the
settings are upset,come back to this setting and adjust them according to procedure in the needle
setting section.
Installation
Use a strong enough material for the mounting face of the model ,such as birch ply firewall of
more than 8mm thick.
Make sure the mounting face of the model is flat.If it is uneven,work on it to be flat.engine
mounting face has been high-precision machined flat.make sure mounting face of model is also
flat.
Use 5mm steel hex socket head bolts to install the engine. Also use the nord lock washers and
other anti-loosening washer or apply locking agent.
Note
Close the choke in the intake stroke can be repeated rotating propeller several times, to
make it easier for the fuel into the carburetor。
After the end of a flight, again before the start of the intake stroke of the engine propeller
rotation several times repeatedly, you can make it easier to start
Generally,a gasoline engine is sensitive to a lean mixture compared with a glow engine ,and
will stop without warning hesitation and stops with over heating.It is recommended that the
engine be run with a slightly richer mixture. In particular, the low-speed needle must be
oil-rich in order to ensure smooth transition throttle.
30 second warm-up is required as with TP70 gasoline four stroke engine. After the
completion of engine warm-up to full throttle work.
After starting later in the 2000-3000rpm engine warm-up 30 seconds before stability。
Cooling is more citally important to a four stroke engine than to a two stroke engine.If
overheating symptoms (loss of power at full throttle or exhaust note at mid speed changes
from cloudy one to clear one)are observed during flight,immediately stop flying and carry
out the following countermeasures.
Enlarge the air intake and outlet cutout on the cowling.install an air guiding plate on the
fuselage and cowling so that cooling air may be guided to the cylinder portion of the engine
and muffler.
Maintenance
Maintenance after the day’s flights
1：About once every 20 hours to check valve clearance adjustment, intake valve clearance：
0.08-0.12mm, exhaust valve clearance：0.13-0.17mm
2：Check carbon deposits of valve and spark plug, carbon deposits severe if the valve, please clean
up carbon deposits.
3：Check engine seals, if oil spills or damaged, replace the seals
4：When you save the engine, move the propeller to the engine's compression stroke, which can
reduce the valve spring pressure, prevent dust from entering the cylinder.
5：Check the tightening of each screw
6: To make the engine more stable, it is recommended to use Torqpro genuine Iridium spark plugs.