The site keeps posting this question to the Motorcycle forum, even from within the correct forum. Sorry for the cross post. I bought the machine used knowing that the engine stalls when the choke is opened. I figure it'd be an easy fix, but it hasn't been. I've done everything I know how to do: Took apart the carb and cleaned all parts thoroughly, ran fuel treatment through the line, replaced power jet nozzle, adjusted mixture and idle, etc. The thing starts right up every time, but as soon as I start to open the choke, the engine stalls out. I don't even have to move the choke to one of its three positions. Just opening it the tiniest crack is enough to cause a stall. I've thought of just replacing the carb, but I can't see how this would help given everything I've done. Anyone have any ideas that I've missed?
If you adjusted idle to spec with the choke on, you need to do it again with a fully warm engine. Try turning up the idle with the choke on, to around 3k rpm, then see if you can back off on the choke.
You have a fueling issue - have you done carbs before? there are internal passages and settings that must be cleaned and adjusted.
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Hi Mark D, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
Two cycle or 4 cycle engine
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