305 Problem starting Hot

" I have a 1977 Chris Craft wi

" I have a 1977 Chris Craft with an original 305 in it. When it is cold, it starts very easily without hesitation. When the motor is running it is extremely smooth. After it has been warmed up and shut down, it will only start if I crank the starter for 5 to 7 seconds and only after I release the starter. I was told that it might be a ballast resistor problem but it does not have one to the best of my knoledge. I have put in a new ignition coil and I have also checked the choke to make sure that is operating properly.

Any thoughts or suggestions would be appreciated.

Thank you.

Mike "

" Just a shot in the dark, but

" Just a shot in the dark, but replace the ignition switch. Disconnect battery and remove switch and see if your local NAPA store has one they have a good selection of both marine and auto switches. You do not have to try to get a Chrissy factory part as they use generic switches anyway. It sounds as if the switch has a high resistance reading on the ignition circuit terminals and this will only get worse as temp increases. Anybody else going to chime in with a suggestion?? Good luck and post your results. Kim "

" It sounds like a bad resisto

" It sounds like a bad resistor or electronic module in the distributor, if electronic. Try switching the module. It is only $20 at any local autoparts store. Have seen this happen many times in automobiles. "

I also have 1977 CC with 305.

I also have 1977 CC with 305. The ignition switch on mine is a generic "Cole Herrse" available at West Marine. No ballast resistor on mine.

" Do you have points or electr

" Do you have points or electronic ignition ?
If you have points you do have a resistor in
ignition circut. This drops the voltage from
12 volts to 8-9 volts to the distributor, to
prolong point life. Voltage is droped by an
inline ballast or by a coil with an internal
resistor. When key is in start position, one
small solenoid stud provides 12 volts to plus
side of coil, for a hot 12 volt start. When
key is released, you return to 8-9 run voltage.
If no ballast resistor is present, your new
coil, MUST have an internal resistor. "

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