 DRLAs Question, Rich idle mixture? |
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| sdoolin |
 Jul 2 2023, 10:41 AM
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Member  Group: Members Posts: 418 Joined: 1-May 14 From: LouKY Member No.: 17,299 Region Association: None  |
2056, dual Dellortos, has been running well for a few years, except in hot humid weather. When it gets hot out, she is hard to start once warm, gotta open throttles all the way. Leaving from a red light also difficult, gotta "clear" the carbs out by opening throttle. Runs fine in high RPM (throttles open(ish)).
Current set-up: Idle Jet = 55 Main Jet = 150 Emulsion Tube = 64 Air Correction (jet stack holder) = 180 Venturis = I forget, but she runs well in mild temps. I am thinking idle jets can go down a size to 50, or maybe 45? Pic because pics help everything (and don't bash my hex bar linkage, I quite like it)...  |
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| sdoolin |
Jul 4 2023, 08:00 AM
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Member Group: Members Posts: 418 Joined: 1-May 14 From: LouKY Member No.: 17,299 Region Association: None |
Yep, I have a copy (actually two of them) of the Dellorto Superformance Tech Book. Been reading out of it since the late 80s.
Pump Jets = 35 Mixture screws all 2.5 - 3 turns out. Looking for a previous post to find my Venturi size. Y'all bashed my hexbar linkage... |
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Posts in this topic
sdoolin DRLAs Question Jul 2 2023, 10:41 AM
GregAmy You just never really know until you're runnin... Jul 2 2023, 10:50 AM r_towle First, get rid of that hex bar linkage.. :)
Sound... Jul 3 2023, 07:54 AM yeahmag From my experience:
1) You can't tune well wi... Jul 3 2023, 10:53 AM GregAmy ...and do you have a copy of the Dellorto bible...... Jul 3 2023, 01:00 PM 914Toy Agree with the comments above.
On hot start diffi... Jul 4 2023, 08:15 AM MarkV 2056 With Delortos & Hex Bar
Vents - 34
Idle... Jul 5 2023, 12:01 AM rhodyguy What are you using for gaskets under the intakes? Jul 5 2023, 10:41 AM sdoolin My venturis are 34 mm (Jake Raby suggested).
Intak... Jul 5 2023, 01:12 PM
yeahmag What is the timing at idle? Jul 5 2023, 04:07 PM rfinegan
What is the timing at idle?
shoot for about 1... Jul 5 2023, 04:56 PM |
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