Recommended Jet/Emulstion tube sizes

[dancroft1984]

Hi All,
I'm going to rebuild my carbs in a couple of weeks, I took them apart a year or so back and they were caked in green nonsense and all blocked up, gave them a blow through with some carb cleaner but it wasn't a proper job. The car's not been on the road for 20 years. About 10 years ago I did manage to get it started and it didn't run too badly, but having sat since then the situation hasn't improved (funny that?)
It'll start nearly instantly and idle pretty well, doesn't run TOO badly on the choke (but not great) but off choke putting your foot on the accelerator will kill it. So I've decided on a full rebuild. In addition to the standard rebuild kit, what other parts, jets and emulsion tubes do I need. Don't mind putting it back standard. Though I do hear that upping the idle jet size can improve running, so I may do that.

Car is an '85 LC model.

Thanks,
Dan

[Tanz]

Think I would build them with the standard jets first and see how it goes, then decide if you need to change anything.
I found the Des Hammill book very useful https://www.ebay.co.uk/itm/394408193826 ... R9SykOT0Yw

[Alan_M]

I would rebuild with your jets and tubes you have. Give them a good clean, ideally in ultrasonic bath.
Then see how it runs before “tuning” it with different jetting etc.

[MetBlue]

I'd check all your jets against the spec sheet in the manual ( do you have copy?), clean and rebuild to factory spec. If it won't run cleanly then, you've got another problem and you shouldn't reject the carb to get two wrongs making a right - that's what a garage did to my car a few years ago before I owned it. With 'compensating jets', car was under powered and temperamental reliability - fault traced eventually yo a broken wire in the low voltage feed from the dizzy.
I've tweaked the idle jet holder, not the jet, but only because I had the other holder in my Elite. Not sure yet I'll stay with it or go back to 100% std.

Tony