I started up my FC last night around 1am. It has A LOT of smoke came out but that was only like 10 second. The weather was pretty cold also. Is that normal?

 

Normal when housing seals are going. Smoke is from water that is laying in bottom of rotor chambers.
On early stages of failure there may be no indication during running. What happens is that when you shut down there is still 14psi in the cooling system 0 in the rotor chamber, weak seals or warped housings allow pressures to equalize, putting water into the rotor chamber. Which is what you see burning off when you start it.
Very small amounts of smoke can be normal, but you can usually tell that it is steam from condensation build up in the exhaust, especially in damp climates.
Check for engine seals by toping off the cooling system, leave the cap off and start the car. Watch for bubbles. There will be some rising of the coolant as it warms up. Put a catch pan under the vehicle.
1st sigh is very small bubbles, tiny, one could say they look like dust particles.
2nd stage they form a foam like substance.
3rd stage, larger bubbles that have gray smoke in them
4th stage, blows the water out like a geyser.
On the early stages of failure you may have to let it run until it gets to full operational temp.
You can baby it through the winter by relieving the pressure when you shut down.
If you lived out here in the southwest desert I would be telling you that it will not make it through next summer.
Afraid it is time to start packrating your pennies.

 

How long had the car sat before you started it? A little smoke for a short time at start-up is not unusual, especially if the car has been sitting for awhile.

 

I had the car sat for like 24 hours before the smoke problem. Imma try to start it up tomorrow and see whats gonna happen thanks for the advises

 

If the weather was cold, it could just be water vapor coming off from hot exhaust air mixing with the cool air from outside.

 

I just found out that my alternator belt is broken in half. Would it be one of the reasons that cause the smoke?

 

Not out of the exhaust. If you let a rotary sit you'll get a little smoke, especially when it's cold. As long as you don't get smoke during normal driving (after warmed-up of course), or smoke @ high RPM, then everything's kosher.

But get that belt replaced, and keep an eye on your voltmeter.

 

yeah, it wont smoke after I warm the car up. It was just the beginning 10-15 seconds. But yeah thanks a lot man

 

Yeah, when i warm it up a little, there will have no smoke. May be i should take a video so you guys can gimme some ideas