First it depends on where it is leaking and what is leaking. IF it is leaking fuel out the drain hose, then remove the shut off screw from the bottom of the float bowl. You can clean this out using carb cleaner with the straw. Carefully inspect and clean the shut off screw. I have polished these with ultra fine emery cloth. this should stop the overflow leaks. Also, you might want to pull the float bowl off and make sure the float is not stuck allowing fuel to continullay flow into the bowl. IF it is allow air to leak in, then check the carb top gasket and the intake boot for damage.
Remove them with some WD-40 and some vice grips.
Your float is stuck, a quick fix is tapping on the float bowl with a wrench or the handle of a screwdriver, but you need to tear your carb down and give it a good cleaning.
Well your floats are probably stuck, so take off the carb and remove the float bowl or round thing on the bottom of the carb. Next there is a little pin that holds the floats that you are gonna want to remove then take the float needle out and use a Q-tip to clean it out and reassemble the carb. If it still leaks then you need to adjust the float height by bending the little tab on the floats until it stops leaking.
The fix is replacing the leaking part.
how do i fix leaking spray pump on a 2 barrel carburetor
Floats on Yamaha 660 how you fix
The only fix for a leaking heater core is to replace it.
It could be leaking from a number of places. Some could be a simple fix and others not so simple. Need more info as to where it is leaking.
It's lean. Could be a lot of reasons why. Start with the vacuum lines, then the timing, carb, fuel pump, intake gaskets, etc. Look for anything worn or leaking and fix it.
Lick the cheese.
You replace it.