95 Force 120 hp hard to start when hot

[RoCar]

Help! I love my boat and the engine does a great job. However, after running around the lake, or pulling the kids, it has a hard time starting back up. Especially t'wards the end of the day. It'll stall when you put it into Neutral or try to reverse. We've hit dock pretty hard due to this.

I wonder if it my be the automatic choke in it. How do I tell?

Thanks

 

[roscoe]

Re: 95 Force 120 hp hard to start when hot

Is it just when the motor is hot/warm, turned off then restarting.
Or is it after you turn it off and let it sit for a while, then try to restart?

If it is after it sits for a while, replace the fuel pump diaphram ($15) and give it a try. (if the diaphram is bad, it will leak fuel into the block and flood the lower cylinder )

OH, and welcome to iboats.

Don't be afraid to post again, as we try to troubleshoot this.

 

[RoCar]

Re: 95 Force 120 hp hard to start when hot

It is mostly right after its been running a while. If I shut it off to let people in and out of the boat and try to start it up again; it'll start but immediatly die. I have to give it lots of gas in neutral to keep it going and hope it won't die when I put it into gear.

Thanks for the suggestion.

 

[gregmsr]

Re: 95 Force 120 hp hard to start when hot

What Roscoe said. And,
I suggest change plugs, check you idle RPM's, you may have to adjust idle screw higher. This helped me with the same problem.

Keep an eye on those plugs, change them regularly.

 

[davidchef1]

Re: 95 Force 120 hp hard to start when hot

My 120 force does a similar thing. Hard too start ,and once started will die when I put it in gear. Carbs been reworked, has been idled up.Plugs were changed. Runs great once going .Having too sit in the middle of the lake for 10-15 minutes with a wake boarder at the other end ,and boats going around is quite a day ruiner for me.Any suggestions?

 

[bayliner12]

Re: 95 Force 120 hp hard to start when hot

this sounds exactly whats been happening to me, do you smell fuel, like its flooded, i rebuilt the fuel pump, decarbed, then rebuilt the carbs, the only thing left was the fuel recirculation system, on my motor they have a small ball type check valve that keeps fuel ffrom flowing back into the cylinders, i took thm off and sure enough one of the balls/check valves was out of the seat and stuck to the screen thus allowing fuel back into the cylinders fluding the motor, typically just the screen gets dirty causing a lean problem, mine was just the opposite