1994 75 h.p merc, cold start nightmare

[terrence]

I have a 1994 75 h.p mercury tracker outboard that is a nightmars to start cold. the only way to get it to go is to pull the spark plugs and pour some fuel into the cylinders a few time. When it warms up it runs like a champion. Is the fuel somehow draining out of the float bowls and running back into the tank?? maybe a vaccum leak?? would appreciate some advice. Thank you.

 

[WillyBWright]

Re: 1994 75 h.p merc, cold start nightmare

Welcome to iboats.<br /><br />Is that a Force motor or a Mercury motor? Tracker used either. I assume you're pushing the key in to choke it? There's no automatic choke feature, push and it's choked - let go and it's not. Is this a new problem? Could be a problem with the primer. New boat to you? They take some getting used to. You're pumping the primer bulb, right? You need to do that anytime the motor is cold. It's more of a matter of gas in the carb evaporating out than draining back into the tank.

 

[Barnacle_Bill]

Re: 1994 75 h.p merc, cold start nightmare

Try this. Pump up primer bulb until hard. Turn key on (do not start yet). Push key in and count to 10 slowly. Then start motor.

 

[terrence]

Re: 1994 75 h.p merc, cold start nightmare

Hey guys, thanks for the replies. It is a mercury motor. choke is fine, bulb is hard, been boating for 20 years, also have a 21ft sport boat, do all my own maintenence, never a problem. this is a new problem, tried all the basics, no luck. just doesen't make sense to me.<br />must be something i missed. any ideas??

 

[Laddies]

Re: 1994 75 h.p merc, cold start nightmare

ck the outlet fitting at the top carb. ang see if you have fuel flow if you do ck. the lines to the primer for blockage and then the primer for flow and at the tee on the bleed hoses

 

[terrence]

Re: 1994 75 h.p merc, cold start nightmare

thanks mate, will give a try.