yea its cold blooded it was like 19 degrees out and i just had it running long enough to run upstairs and grab my digital camera and come back down to shoot the video. once it warms up it doesnt skip a beat!!! but like hurricane rider says the jets are a little too big so when i rev it it shoots a flame out the exhaust and a lil black smoke but i just got another set of carbs today so well see if that helps it