Setting Up a Standard PX200 Carb

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eadmr04
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Joined: Thu Jan 29, 2009 6:15 pm
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Bought a low mileage PX200 engine a while back and have fitted it into a Sportique frame. I had to change the carb body for a shallower early type one to get it to all fit in. I've disconnected and blocked up the autolube and am now just trying to set the carb up.

It starts ok but seems to be running very rich, I have to turn the throttle screw all the way in and the airscrew all the way in to get some sort of tickover. There's seems to be quite a bit of excess fuel spiting out and then runing out of the hole where the airscrew is. I've checked all the jets and they seem to be standard apart from the main jet which is 120 as it has a a sito type exhaust on it. I've had the filter of and you can see the choke close and blank of the hole so don't think it's that. Any suggestions?
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