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Hi Everyone, I have a Attex with a 400 JLO and a single Mikuni Carb in it. I have a brand new Mikuni pulse fuel pump (Rectangle type). The pulse hose is black rubber and I have located it where it has a length of 16" to 28" from the vacuum port. My problem is that when I take it for a drive after 10 minutes, gas is overflowing from somewhere on the carb - not sure where. At idle it does not happen. I have new floats and a new Needle valve and it still overflows. I have adjusted the float level several mm higher than spec and it still overflows. I am at the point of ordering a new carb. Does anyone have any ideas? What carb size would you recommend I replace it with? Thanks.
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