Check the zjautoparts buffer board

[zjautoparts Lee]

Check the zjautoparts buffer board. Unless the buffer board is excessively worn or broken, the buffer board can be used again.

Check the worn or damage of springs, and, through a comparison with a new spring, check the flaw of every spring. When you polish valve seat or change valve seat or change valve plates, if a spring is found so damaged or worn that it must be changed, then all the springs must be changed.

Exam the presence of damage to valve guard plates. Normally you do not need to repair it, and you can grind it as per requirement when it is damaged.

I have a Honda 1980 CB 650 that I have had since new. The bike has developed a pesky problem of leaking thru the overflow valves on at least two carbs. They are Keihin throttle valve carbs. Thinking the floats may be "sticking" I removed and cleaned them but that didn't fix the problem. In fact they seem to leak more now.

 The gas starts to leak as soon as the fuel valve is in the flow position..regardless if the engine is running. The floats appeared to be in good condition but the float bowl gaskets did seem a little worn. Gas does not leak at the gaskets however, only thru the overflow. The EGR valve spindle also appeared to be in reasonably good condition.