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'09 Evo Stalling When Rear Wheel Is Lifted?!


ripgroove
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In these pictures, I have removed the tower that the jets are screwed into. Under the tower a very small hole becomes evident that connects the outlet of the carb to the underside of the tower, and likely has something to do with the pressure sensing of the carb to the intake tract. I use a #78 or #79 gas orifice drill bit to make sure that this port is clear, and have found that in all cases this has fixed the problem that you are describing. It may be possible to clear with air, but I just happen to have small instrument type drill bits.

 

One of the pictures is of the inside of the carb under the tower showing the tip of the drill bit coming through, the other is of the brass handle on the drill bit as it is inserted through the hole from the outlet of the carb.

 

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Edited by spenser
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