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> Adjusting Air / Fuel Mixture
sjhenry1075
post Jun 22 2021, 08:29 AM
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Hey everyone, please excuse my lack of knowledge on this subject, but I have a question regarding air / fuel mixture adjustment on my 71 1.7 with stock D-jet. I posted this question on Facebook but wanted to try here as well.

Back story: my car will only idle and drive when both vacuum lines are disconnected from the distributor. When connected (I used a diagram found on 914world so I know they aren't flipped) the car barely idles when cold or warm, and it is almost undriveable; it surges, bucks, and hesitates. If I remove both vacuum lines from the distributor it idles and runs great.

From what I understand from the replies on FaceBook, this could be an air/fuel mixture issue, but how is that adjusted with for the 71? Is there a certain procedure for this?

Thanks in Advance for any assistance you can provide!

For those going to PA for the Northeast gathering, I'm looking forward to meeting you!

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sjhenry1075   Adjusting Air / Fuel Mixture   Jun 22 2021, 08:29 AM
brant   you have to verify everything is correct before yo...   Jun 22 2021, 08:41 AM
rjames   Agree that you should verify fuel pressure, timing...   Jun 22 2021, 08:54 AM
sjhenry1075   Agree that you should verify fuel pressure, timin...   Jun 22 2021, 09:23 AM
rjames   Agree that you should verify fuel pressure, timi...   Jun 22 2021, 09:39 AM
sjhenry1075   [quote name='sjhenry1075' post='2925419' date='Ju...   Jun 22 2021, 09:46 AM
falcor75   After the basics like fuel pressure and timing the...   Jun 22 2021, 09:56 AM
brant   I'd check the distributor plate is moving free...   Jun 22 2021, 10:37 AM
rjames   Unlikely, but I have to ask since others have made...   Jun 22 2021, 11:11 AM
sjhenry1075   Unlikely, but I have to ask since others have mad...   Jun 23 2021, 07:11 AM
914_teener   Hey everyone, please excuse my lack of knowledge ...   Jun 22 2021, 11:23 AM
Superhawk996   I'd stay off Facebook for advice for your 91...   Jun 22 2021, 11:59 AM
sjhenry1075   Hey everyone, please excuse my lack of knowledge...   Jun 22 2021, 12:10 PM
JamesM   Back story: my car will only idle and drive when ...   Jun 22 2021, 11:56 AM
sjhenry1075   Back story: my car will only idle and drive when...   Jun 22 2021, 12:12 PM
JamesM   I did set the timing using a timing light and pr...   Jun 22 2021, 01:12 PM
sjhenry1075   I did set the timing using a timing light and p...   Jun 22 2021, 04:47 PM
MDTerp   I did set the timing using a timing light and p...   Jun 22 2021, 05:02 PM
sjhenry1075   [quote name='JamesM' post='2925469' date='Jun 22 ...   Jun 23 2021, 06:36 AM
JamesM   I think if it were timing, wouldn't it be dif...   Jun 23 2021, 09:32 AM
brant   another thing that can make the car run rich is a ...   Jun 22 2021, 01:03 PM
JamesM   another thing that can make the car run rich is a...   Jun 22 2021, 01:32 PM
sjhenry1075   another thing that can make the car run rich is a...   Jun 22 2021, 04:49 PM
rjames   [quote name='brant' post='2925467' date='Jun 22 2...   Jun 22 2021, 05:38 PM
sjhenry1075   [quote name='brant' post='2925467' date='Jun 22 ...   Jun 23 2021, 06:50 AM
sjhenry1075   Thank you for the assistance everyone, I certainly...   Jun 22 2021, 04:56 PM


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