Questionmy bike overheated one day last yr and the funny thing is there was plenty of coolant, the water pump has been tested and is fine, i rode it when it was cool out after that and it all of a sudden started putting and blowing white smoke and that is that. do you have any ideas one of why it overheated if the fan, radiator and water pump work, and two why the white smoke. please help thanks
AnswerHi Steven,
White smoke indicates one or more of the following:
1) Defective cylinder head or cylinder base gasket
2) Cracked cylinder or head surface.
Visit this link and read some of the topics.
http://faq.f650.com/FAQs/Overheating_FAQ.htm
Respectfully,
Mark Shively
Coolant Overheating & Servicing
By Mark Shively
Motorcycle and ATV cooling systems are air-free by design. Air in the cooling system lowers the boiling point of coolant to just above the point of which water boils and causes engine overheating.
Air enters the cooling system anytime the system is opened by changing the coolant, replacing the thermostat, temperature sensor, fan switch, or when other repairs requires draining coolant.
It is important to purge air from the system after servicing. The exceptions to this are opening the radiator cap or coolant reservoir cap for routine inspection and periodic maintenance.
The Mityvac Company manufactures a tool for purging air from cooling systems. The tool is the AirEvac tool. The Mityvac Cooling System AirEvac Kit refills cooling systems in minutes without trapping air that can cause overheating. The kit combines a universal adapter with a compressed-air-operated Venturi vacuum to quickly eliminate trapped air by purging and refilling the cooling system under vacuum.
The result is an air-free cooling system. Higher coolant boiling temperatures ensures a cool running engine and optimum performance.
