Having issues with my motorcycle. Please assist me?

When i start my motorcycle white smoke comes from the engine. When i ran it for a bit to see if it would clear up, it did not. I loosened the radiator cap to check the levels after i ran it and a lot coolant came gushing out. The heat seems to build up quite quickly on the bike. And not a master mechanic but i know a few basic things. I would appreciate if you could tell me what you think it is, and what sort of action i should take. Thank you for all your assistance.

Added (1). also it is a 1986 Honda Magna VF700C with 71,000 miles on it

White smoke coming out sounds like a head gasket failure. Possibly something cracked inside the engine but less likely. That white smoke is your antifreeze getting in the combustion chamber. Remember white smoke is water or antifreeze, blue smoke is oil and black smoke is excess fuel not being burnt.

What Zackary said - head gasket.
When the radiator coolant came rushing out, the cylinder compression was blowing past the leaking head gasket and pressurizing the cooling system.
Happens with all water cooled bikes.

Blown head gasket?

  • Please identify this motorcycle for me? It is a honda VTR between the years of 1997-2001. It doesn't specify on the side whether it is a VTR1000F or a VTR250. All it says is VTR in red letters near the bottom of the front casing. The color scheme is turquoise and white if that helps at all in identifying the model.
  • I want to buy a 150cc bike with good looks n mileage. Please guide me? I have considered following bikes: 1. Honda cb unicorn dazzler 2. Yamaha fz 3. Pulsar 135 ls I heared about pulsar 150ns but don't know about its mileage.
  • I want a enduro dual sport but I'm having seat height issues? I want to buy a dual sport and I was looking at a honda crf250l because of the reliability and ratings and longetivity. The only problem with it is the seat height is 34.7 inches and it's too tall. My height needed is about 32.9 inches. Does anyone have any suggestions?
  • I have a 2014 honda shadow phantom been having issues with my tail light Brake light works but the steady back light isn't working only shines when i brake electric problems maybe? Guessing it isn't connected but can't take the bolts off from the back to get to the electrical to the tail light and not coming off. Some advice on how to get it properly working would be most appreciated