1.7 d-jet '73 almost running Options

[isdyl]

Hi all - so I've refitted d-jet on my 1.7 which had a single weber when I bought it. It's almost running but I've run out of ideas as to what to adjust or check. I've recorded a video of it starting. You'll hear that it starts quite lumpily and wants to stall. I manage to get the revs up by feathering the throttle and they go up to 2.5 or 3000 revs on their own for a second, and then it all dies again. I can keep it running by feathering the throttle again.

https://www.youtube.com/watch?v=Y06kdQC2IZg

Fuel pressure when running is 2 BAR. Theres no cold start valve connected. All injectors are 'squirting' as I took them out and checked in a jam jar. I've tried adjusting timing, mixture screw, air screw. I haven't checked the valve clearances yet but have had the distributor in 100 different settings with no improvement. I just wondered if anyone has any ideas please?
Thanks, Dylan

[isdyl]

Hi all,
So I've checked the valve gaps and all were fine. I've just been looking at the distributor now and checking it all works ok but am wondering if the vacuum advance is working - should I be able to move the plate by sucking on the pipe please?
Dylan

[porschetub]

[quote name='isdyl' date='Mar 15 2020, 05:59 AM' post='2794130']
Hi all,
So I've checked the valve gaps and all were fine. I've just been looking at the distributor now and checking it all works ok but am wondering if the vacuum advance is working - should I be able to move the plate by sucking on the pipe please?
Dylan
[/quote

Yes that will confirm that the vacuum canister is working,if no movement don't assume the canister is bad as it may be that the advance plate is gunked up.
You can remove the canister and test it to confirm this is the issue,sometimes you can free up the advance plate with brake clean then lube it but in my experience it is better to dismantle it and clean the two parts properly.
Good luck.