In most cases it is 195-205 degrees F. This is the temperature at which an internal combustion engine performs it's best. And the faster the engine reaches this temperature the better.
Different engines run at different temperatures. It would be best to consult your owner's manual.
When an enzyme coola below a temperature where it can work, it denatures (dies).
Temperature alone would do it; engines create heat, which must be removed for best efficiency.
Temperature gauge not moved and the fan's always are working
No, the steam engines is the bestest. Get your grammar right.
Room temperature.
Xlpe maximum working temperature is 90 and minimum working temperature is 0 c
A Dodge mechanic.
It is possible that the temperature gauge has stopped working in a 1992 Tempo due to a blown fuse. It is also possible that the temperature gauge stopped working do to the temperature sensor in the engine having a short.
They are OK engines. I would say that Yamaha engines are the best though.
http://www.oldminibikes.com/forum - check out the engines section
This temperature depends on the fuel used and working conditions.