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Adding a external impulse line.

Thesandman

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I'm switching carbs and need to add a external line. Any ideas as to how and where? It's a old Poulan 4000. Thanks, sandy
 
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cus_deluxe

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Ive seen it done and done it myself by drilling into transfer tunnel and adding a barb. Hard to say whats the best option without having the saw sitting in front of me but its definitely doable.
 

Ronie

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I've done it by drilling into the impulse in the carb block/adapter and adding a nipple on a 272 with a 670 carb, might work on the 4000 block.
 
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