[GAK]

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After finding radiator steam from the right side of my bike, I stripped off as much coverning as I could find and I believe the leak may becoming from the thermo valve. How can you test the valve to determine this?What would I expect if the valve is gone bad?

 

[GWNorman]

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Do you mean the thermostat?

 

[GAK]

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no actually the thermo valve. It is an inline valve found on the right hand side of the engine behind the spark plugs. the valve is connected to a small diameter rad hose that runs back from a tee from the thermostat and the right radiator. each time I check after I run and let the bike cool, I have a small noticable amount of rad fluid sitting on below this thermo valve. I can easily change most of the smaller hoses but I wouldlike to get the valve check to make sure it is not malfunctioning.

 

[agnogel]

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hi gak and a happy christmas the termo valve is connected to the heat exchanger on the carbs it is open on start up , up to 68 degrees then it closes this runs hot water to the carbs in order to atomise the fuel when the engine is cold there is about 6 small spring clamps fitted in and near this and is a thight squees to get at