Retrofit Amal Premier pilot jets? (2016)

ag12680 said:

By midrange I mean 2-3K RPM. I have 260 mains and moved the needle all the way up (clip in bottom notch). Still not sure why the pilot jet can't be addressed with the air screw.
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It's not about rpm. It's about how far open the throttle is, as you have already been asked.

Have you already cleared the pilot jet with a 16 thou guitar string or #78 modelmakers' drill?

These carbs were new out of the box so I have not touched the jets.

Thanks for the correction on the midrange reference.

ag12680 said:

These carbs were new out of the box so I have not touched the jets.

Thanks for the correction on the midrange reference.

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Amal sells carbs full of dirt, which blocks the pilot jets, new out of the box.

grayluders said:

I've removed the pilot circuit blanking plugs on my Amal 930s and pressed out the .016" pilot bushings, tapping the blanking plug passages 2BA.
Is it possible to fit the Amal Premier pilot jets through these former blanking plug orifices?
Would one choose an .015, a .017, or a .019" for today's fuel?
If not possible, something else that could improve on the gol' darn .016 bushing?
App is a '67 RE Interceptor.
Thanks, and apologies for possibly dumbly lobbing a "oil thread" question out!
Cheers,
gl

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yes it is possible to fit premier pilot jets into amal mk 1 concentrics, then as you say you can remove them to clean easily and also fit a different size if you want to cheers baz

I was having awful time trying to get my Commando to run with the original .015" jets. Per advice on this posting, I opened mine up to .019" on milling machine (I'm a long time machinist). It still did just a little "lean popping" on decel, and I fixed that by crankiing the mixture screws to 1 turn from closed. That makes the bike run great ! I would be willing to machine jets out to .019 for other folks for $15 a pair + $4.00 to ship them back. I'd do this as a favor to Norton Pals, and not as a way to supplement my income. jwthomas@ttmco.com