 Boat and Trumpet Install on IDTP Carbs, Special Tool Required? |
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| DennisV |
  Aug 14 2026, 07:18 AM
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#1
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Senior Member  Group: Members Posts: 994 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California 
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I am assembly IDTP carburetors. I have trumpets (aka velocity stacks) and also boats (bottom air cleaner connecting piece). Are they both meant to be used at the same time?
If so, how do you tighten the nut (8mm ATF)? I don't see room to get any conventional wrench or socket on there. Is there a special tool required? I'm probably missing something obvious. Top is what I understand to the be stacking order. Below an example of where the nuts need to go.   |
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| Retroracer |
Aug 14 2026, 10:07 AM
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#2
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Senior Member Group: Members Posts: 665 Joined: 7-July 13 From: Bend OR Member No.: 16,100 Region Association: Pacific Northwest
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Looks like your assembly / stack up is correct. An articulated or semi flexiblle socket extension is whats required for tightening.
All with the added fun / excitement during assembly that a dropped 8mm nut will be heading straight into the carb throats! - Tony |
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Posts in this topic
DennisV Boat and Trumpet Install on IDTP Carbs Aug 14 2026, 07:18 AM
mskala For me, I got an 8mm deep socket (1/4" drive)... Aug 14 2026, 07:27 AM
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