Trouble starting moped

[mossietheno1]

I'm new to working on 2-strokes. have worked a good bit on cars all efi so I'm not great with carbs.

I have starting working on my first 2-stroke and been trying to get it to start and stay running. at first it was the fuel which after a lot of fiddling, changed it out for new gas and she was right as rain, but it would stop out of now where. the previous owner described this problem as it would lose power while driving down the road. after cleaning out the gas tank it would run for about 2-3 mins and now it its more closer to a min. have tried tuning the carb by putting what looked like the main and the idle screw all the way in and tried 1/4 of turn out and running the bike and the bike dying and repeating until the screw were way too far out. have cleaned out the carb with carb clean apart from the area at the bottom of the carb which i think is the bowl. but filled it up in the tube gas comes in and let that sit for ten mins and drain it out the screw at the bottom.

my current idea is that its running to lean as when i pull back in the throttle cable quickly and let it back to closed it will stay running for a lot longer, around 10 mins. from my understanding when you pull back on the cable quick an efi step-up would add more fuel down to 10-11 afr. or something to do with the electronic chock engaging and again leaning the bike.

Have though about checking the spark and ground it and got nice blue spark but havet gone any further with that testing.

I am a bit at odds, don't know what to check next. if there is an list of thing to check on this forum if please point me in that direction.

Below is a link to me not being able to start the bike with no throttle, being able to start it and not able to keep it alive with a small amount of throttle and it dying , and keeping it alive longer with me revving the throttle but it still dying

youtu.be/09gNdB6pQm0

[pinkscoot]

Here is a guide to no start conditions: 49ccscoot.proboards.com/thread/647?page=1 Everything you need to know is in the floating menu to your left. Now as to you issue, when you cleaned the carb did you remove the jets and poke a thin piece of wire through them, particularly the idle jet? Did you spray carb cleaner through the hole where the idle jet is? Your problem seems to be with your idle circuit. A good ultra sonic bath will make your carb much happier.

[mossietheno1]

will do, read thought that and i think it is either the carb(i might have not cleaned it well anuf, i dd take the screws/jets and sprayed in to the crab but did not clean the the needle it self), or the coil i will fully charge the battery and run the coil for a while to see does it fail one or at all. will buy a compression tester as well, to be sure on that end, will need one for down the road sometime. thanks for the response

[mossietheno1]

ah i just saw there was a second page to that link, that will keep me busy for this weekend when i at it. will keep you update thanks for all the help.

[geoffh]

We like a man that helps himself,clean the carb again be methodical every little hole should be checked,I use electric cable stripped back to poke and prod around,check the petcock is working,write stuff down.

Geoff

[mossietheno1]

Thank you very much for all you help. i got the bike running again. must have been something to do with one of the things i took out through the bottom of the carb after taking the float out. i didn't clean there before as i couldn't open those screws but i got them open after hammering a screwdriver in to it crack the rust on them.