I have a mercruiser pair of 470's in my 1977 weekender 240 srv and I have a problem with the port engine when starting cold it doesn't without help. At first I noticed the choke wasn't closing so I adjusted the choke to the 1/8" gape and when you put the throttle forward it goes into position but the engine cranks but doesn't want to start without the help of quick start (I know bad idea).It fires right up then and perfectly after running for a couple minutes you can then turn it off and when restarted it fires right up. I suspect it is a fuel delivery issue when cold but not sure where to start, the electric choke assembly is no longer available from the dealer. The other engine fires right up and the choke works like it should and set in the middle on the adjustment as where I have the other cranked most of the way to the left. I thought about using butane as a starting agent as I just don't like ether only if I can't get this figured out. Any suggestions would be helpful, I'm restoring this boat back to it's original condition and look plus an inverter for the fridge. The only things I'm missing is the vent assembly at transom and the alcohol stove. Does anyone know if these boats came with a battery charger? Sorry to get off topic but this boat is really looking good right now and would like to get it in the water.