White smoke on start up

[D-Power]

The other day i started the car up (it'd been raining for two days solid) and a large single puff (for want of a better word) of white smoke came out. It hasnt done this before ofr since (as yet!)
Any ideas? Was wondering if it could have just been moisture in the exhuast, as i have a custom jobbie?

 

[devonutopia]

white smoke on start-up is nowt to worry about. Mine does it quite a lot when it's cold, and it even varies a little on the revs (no more than about 50 revs up/down) - after 10 seconds or so it settles down and is OK.

 

[D-Power]

top man, thats just what i wanted to hear! Strange how i've not had it happen before though