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I dropped the carb again and plugged in the 110, slapped it together and fired that up. No coughing, but when I tested it on the road, the bike started to stumble right near the top of the throttle. I still have the 110 in the carb but I need the 108. 106 stock is only a little too lean, and the 110 is a little too rich. Now at least I know what to do, and how to do it.
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When increasing main jet size its almost always necessary to increase airflow (read: new air filter and maybe exhaust if the change is big enough).
More fuel=more air unless the bike is lean from the factory. Most of the china bikes arrive a bit on the rich side if this forum is any indication.