76 Puch...running great...now NOTHING

I just picked up a 76 Puch a few days back, cleaned the carb SEVERAL times, finally on the 6th attempt it fired up and ran great. Rode for a good half hour before parking it. This was two days ago. Today I go to ride, fires right up, but this time a LOT of white smoke came from the exhaust. I ran for about half a block before the smoke went away. I'm riding some more, not even 5 minutes, and it starts to bog down on me. I go to give it gas, and it bogs worse. Eventually it dies. I park, prime and choke the carb, and it starts again. I go for about half a block, and it does the same. So I repeat, until I get back to my shop. This happens about 5 times. When there I fire it up on the kickstand, and I could rev it ALL day if I wanted to and it would run great. NEVER once did it die when on the stand. I went to ride again, and same thing happened. ANY idea what this might be? Should I clean the carb once more? What was with the smoke? Why will it run on the stand but not with me on it? ANY help would be great. THANKS!

Re: 76 Puch...running great...now NOTHING

See Ya Moped Army /

Check the compression.

Re: 76 Puch...running great...now NOTHING

How do I do that? From what I can tell, the compression is good.

Re: 76 Puch...running great...now NOTHING

Anyone got any ideas? PLEASE let me know. thanks

Re: 76 Puch...running great...now NOTHING

Ok now I am looking pathetic. ANYONE please help?????

Re: 76 Puch...running great...now NOTHING

well if you dont have a compresssion gauge you can pull the plug then out your finger over the hole and turn the pedals, it should come close to pushing your finger off

Re: 76 Puch...running great...now NOTHING

And if it does, then what? Compression seems fine to me.

Re: 76 Puch...running great...now NOTHING

Why does it run great when on the kickstand? But when I go to ride, it bogs down...any idea why this happens? Fuel problem? Air leak? What?? Like I said, compression is good.

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