16H crankcase breather valve

Hi Gary,

I am in the middle of rebuilding my 16h and i did indeed have a spring behind the ball.

Hope that helps

Kind Regards

Steve

Hi Gary,

   If you are talking about the breather behind the engine sprocket, the answer is no. The weight of the small ball bearing is sufficient to control the pressure, and if you increase this pressure with a spring, you will get oil leaking from elsewhere in the engine. If you were building a racing engine you would fit extra unrestricted breathers on it to get the best performance.