I just got a 1987 johnson 40hp engine that the vro pump is not being used to mix the gas and oil I am mixing it 50:1 in the gas tank. the engine runs fine but when I am priming engine I get a little bit of a gas leak at pump. the engine has not been used for some time and the gasket may be gone. I looked on the web and found a non vro pump but it is alot of money and I would like to know if there is another fuel pump can be uesd if so what pump is it and were can I get it. any help would be great.