What are the signs of a gy6 engine chineese version overheating?

It is just a standard 'Bench Test'.

Warning Signs that Your Engine is Overheating

1. Hot Hood. When the engine is running, you can expect the hood to emit heat and feel warm to the touch. ...
2. Temperature Gauge or Light. ...
3. Ticking Noise. ...
4. Coolant Leaking on the Ground. ...
5. Smells "Hot" ...
6. Steam Coming from the Hood. ...
7. Thumping Noises. ...
8. Reduced Engine Power.

https://www.bowersautomotive.net/warning-signs-engine-overheating/

Exhaust manifold nuts 10-14Nm
Exhaust mounting bolts 30-14Nm
Engine mounting nuts 45-50Nm
Oil drain bolt 11-15Nm
Oil filter screen cap 10-20 Nm
Spark plug 10 -14Nm
Crank case bolts 8-12Nm
Cylinder head bolts / nuts 18Nm-22Nm
Variator center nut 35-40 Nm 49cc gy6 149cc gy6 40-60NM
Clutch assembly nut for spring 50-60Nm 49cc gy6
Clutch center nut 35-40Nm 49cc gy6 1 49cc gy6 40-60NM
Gear box drain and fill bolt 9-15Nm 49cc -149cc gy6
Fan bolts 9Nm 49cc -149cc gy6
Valve lash adjusting nut 7 Ft Lbs



Standard Torque Setings
M5-Bolt or Nut--5Nm
M6-Bolt or Nut--10Nm
M8Bolt or Nut--21.5Nm
M10Bolt or Nut 35Nm
M12Bolt or Nut 55Mm

M6Bolt or Nut flanged head 12Mn
M8Bolt or Nut flanged head 27Nm
M10Bolt or Nut flanged head 40Nm

Signs
http://www.fixkick.com/overheating.html#SIGNS

why not consider all signs. and let the evidence prove the puddn
???
head gasket. signs (huge list)
overheating.
water and steam gushing from rad cap or overfill tank
carbon in the rad neck hole, cap off cold.
oil in same place
water in engine pan, (milky)
steam out the tail pipe after engine fully warm.
water leaking down side of block at head/block juncture.
cylinder compression low on 1 or more.
cylinder leak down fails on 1 or more
the green/blue die test fails.
the rad leak down gauge test fails.
engine pings
lost engine power.
funny sounds.
i can list more, but that is enough.

copture hanging problam

If it overheated and stalled and now it does not start. You probably blew the headgasket and hydrolocked the engine. Question does it crank over? If so that is a good sign. If not Bad sign.

there is no official chineese version of nokia N95.
Its the problem with the firmware. Update it and everything will be fine