How can i determine if i have a 1993 evinrude 120h V4 standars or ocean pro, what is the difference

Question edited to add the Maker.

Invicta Master of the Oceans Pro Diver Model 0886 Men's Watch, Date First Available: 23 March 2011.

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No, there are no head gaskets like other engines. But you should find O-rings...

google it

Hi Dave I google "115 hp evinrude out board motor ocean pro serial no g4045482" and found a short Utube video so if you wanna check out the link here it is.. CHEERS-->
https://www.youtube.com/watch?v=IC2Oy8m2Sog

Check the tank vent. No air, no gas. Tank pick up tube may be clogged. Built in tanks usually have an anti-siphon valve that can clog.

40-1 on most 50- 1 on some year of motor?

This isn't a networking problem.

But I will take a shot at it. Make sure that it is a flooding problem and not a lack of spark.

You should be able to figure both of these things out by removing a spark plug, if its flooded there will be excess of fuel in the cylinder at which point you want to check that the carb and carb float is working correctly, if its a lack of spark you may need a new rectifier.

Take the cowling off. Also drop the foot. There wil be a stainless linkage rod that runs the length of the motor that you will have undo to drop the foot. The water impeller will be inside a stainless casing that you will have to disassemble.

There always that possibility and if the injectors are identical you could switch them and see if the problem moves. Then you know its that one injector. The other possiblity is spark. The wire or the coil for that plug could be weak.