DCM

I did get this Aquabug running recently. I bought the gasket and diaphragm on ebay. I do have question on if anyone knows where i can purchase a throttle handle. The aquabug runs and sounds good but has a small leak coming from part of the carburetor, see in picture, i don't know what its called. any advice would be helpful. Also the starter pulley return sounds like it needs lubrication its slow to return and makes a lot of noise any advice would help. I`m sorry I haven`t responded because I just worked on it a couple of weeks ago. If it wasn`t for all your advice and help, I never would have got this running.