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is there supposed to be an orifice in vac advance line ??????
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Adolph Spitta
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Someone may have put some type of restrictor in the line to minimize vacuum advance plate chatter. Nothing wrong with doing this. An old pilot jet works well for this.2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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Hey Adolph,
Make sure your vacuum advance line is connected to the #2 carb body port tube, NOT The Intake BOOT Synch Port. IF so, that may also be why the PO put in a restrictor. The Port on the #2 carb body IS metered, and shouldn't need a restrictor valve device.T. C. Gresham
81SH "Godzilla" . . .1179cc super-rat.
79SF "The Teacher" . . .basket case!
History shows again and again,
How nature points out the folly of men!Comment
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Yeah, if the carbs are not synched properly, the restrictor helps. +1 TC on having the hose going to the +2 carb body. I'm sure Adolph has it hooked up correctly.
2H7 (79) owned since '89
3H3 owned since '06
"If it ain't broke, modify it"
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Write something...Last edited by 3Phase; 01-19-2021, 07:45 AM.-- Scott
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2004 ST1300A: No name... yet
1982 XJ1100J: "Baby" SS Brakes, '850 FD, ACCT
1980 XS1100G: "Columbo" SS Brakes, '850 FD, ACCT
1979 XS1100SF: "Bush" W.I.P.
1979 XS1100F: parts
2018 Heritage Softail Classic 117 FLHCS SE: "Nanuk" It's DEAD, it's not just resting. It is an EX cycle.
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Hi Adolph, Wondering why you are asking. Did you find a restrictor in the line that seemed out of place or did you notice the vac advance pulsing?
---Bax80 SG, --- Slightly modified with EFI.....Comment
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thanks for all the input, anxiety level lowered, buyer should be here saturday from new york. hoses are hooked up correctlyAdolph Spitta
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