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OK so I played around with it a little. I was able to start it again and found that if I shot some air from my compressor into the carb it'd straighten up a bit. So then I decided to unhook the fuel pump when I got it started again. When the carb would start to run out of fuel it seemed to actually run like it is supposed to. So, does this mean that the carb needs to be rejetted? Or would it mean there's an internal issue where the engine isn't creating enough vacuum or getting enough air? I tried messing with the settings on the Mikuni but it didn't matter. Again, this Mikuni cam straight off of another running Cuyuna 440. I did learn that the previous owner of the sled said that he had done a lot of work on the top end of this motor. Could he have messed something up????
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Just a poor man trying to ride a cheap sled
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