Re: water leaking from cylinder 1/2 and 3
I don't think it's anything other than a cover gasket leak. I'm not even sure if your motor has a cylinder head that will unbolt. I would take off the cover and replace the gasket. IF it starts at all, you can be sure that the water is not coming from the spark plug threads---it just appears to. IF it's hard to start, it is probably either your starting procedure, or the choke plates are not closing fully. I have never owned a tower of power, so keep that in mind, but I do hear that they need lots of fuel to start cold, and it helps to give it lots of choke on a cold startup and to make sure you pump the primer bulb before starting to fill the float bowls fully.
JBJ