Cant set the carb right how many turn for both it is a 2 stroke jr 50

Every 2 stroke I've ever worked on, the float is set parallel to the bottom of the carburetor. Turn the carb upside down and look to see if the float is even with the bottom of the carb.

Mercury Outboard Manuals by Seloc 1965 2014

best place t go is youtube and if you cant find your watching any small motor video will help but you need to watch one of the same engine if yours is 2 stroke then watch a 2 stroke video and same as 4 stroke carbs are different hope this helps

turn the air screw in or out to try and correct on the carb. if that doesn't work it might be the altitude for where you are at you may have to change jet sizes in the carb or adjust the needle up or down also make sure the air filter is clean.

Turn both screws CW to stops (lightly), then back out CCW 1-1/2 turns each. This is a basic setting and the engine should start and run. Allow the engine to warm up, then pull the throttle full on. Turn the H jet screw CW until the engine starts to speed up, but still 4-strokes. Proper adjustment occurs when the engine is 4-stroking, but immediately 2-strokes when cutting. This gives best power and lowest heat. Release the throttle and adjust L jet CW until the engine idles fairly well, but will allow the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops turning, but the engine continues to run. Hope this helps!

its still a carb fault!!! but its a blocked running jet
so strip out the carb and clean out all the jets
dont go poking wire into any of the jets as you will only distroy them that way,,,use carb cleaner and comprest air if you can check you have a good flow of gas getting through the carb then re-fit the card and run the engine up then tune it when warmed up

fuel pump could be the cause but also the float in the carby could be not set at the right level and starve the motor at high revs .

Check choke itself to make sure it moves freely. Adjust the cable and spring if necessary. If the choke is controlled by a vacuum controlled actuator, make sure it is not leaking or loose pressure

usually 1 1/2 turns from snug in will be right. this is true on most all 2 stroke engines and 4 stroke that use a diapraham type carb

DOES IT STOP RUNNING BECAUSE OF A FOULED PLUG WHAT RATIO FUEL/OIL ARE YOU RUNNING
40:1 IS A GOOD RATIO NEVER HAD A FAILURE IN 20 YEARS