1967 Mercury 110 (9.8 Hp)

[mikel4538]

I have owned this outboard since new. Last summer I was having a lot of trouble starting it but once running it was great. Now I cannot get it started unless I choke it and it will only run for 5-10 seconds and cut out. I have replaced the needle valve,diaphram,check valves,gaskets,plugs and fuel lines but it has made no difference.

 

[S.T. Marine]

Re: 1967 Mercury 110 (9.8 Hp)

Have you tried replacing the spark plugs? Are you sure you are getting spark on both cylinders?

 

[steelespike]

Re: 1967 Mercury 110 (9.8 Hp)

I think you are still having a fuel supply problem<br /> If it helps when you choke it or when you spray fuel mix in the carb, its a fuel problem.<br /> Check everything from tank to carb. with special attention to cleaning and checking fittings and connectors.<br /> Be sure the vent is working right,and check the strainer on the dip tube.

 

[mikel4538]

Re: 1967 Mercury 110 (9.8 Hp)

The spark plugs are new and do have spark, although the timimg may be off. I have taken the tank apart and replace fuel line from tank to fuel pump. You can see gas in the carb after you choke engine.

 

[rons boat]

Re: 1967 Mercury 110 (9.8 Hp)

Make a squirt can of premix and play carbrurator. If you can squirt just the right amount of fuel into the intake (carbruratior) to keep it going, you have localized to a fuel problem. Next hold the fuel tank above the carb and prove you dont have a fuel pump problem..which is common on that model.

 

[dmessy]

Re: 1967 Mercury 110 (9.8 Hp)

Assuming that the primer bulb gets hard when it is connected to the motor and you pump it up, I would loosen the screw at the bottom of the float bowl to be assured that it has gas in it(should flow out and continue to do so until replugged).<br /> Thinking that your needle valve is binding, not allowing fuel into the bowl...