Author Topic: Source for rebuilt PHF30 carbs? (Mille GT)  (Read 296 times)

Online baloo

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Source for rebuilt PHF30 carbs? (Mille GT)
« on: October 07, 2025, 10:19:40 AM »
89 Mille GT - I'm tired of messing with my carbs, and thinking there's a source for already rebuilt PHF30 (stock) Dellorto's, right?
Any recommendations where to find a pair of these?

I can rebuild carbs, but I've got too many other projects (cars) that need the attention!

Online Antietam Classic Cycle

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #1 on: October 07, 2025, 10:23:38 AM »
There are shops that can rebuild them, but I don't know of any that offers rebuilt ones for sale. New PHFs are available though.
Charlie

Online baloo

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #2 on: October 07, 2025, 10:27:28 AM »
Shops to rebuild... any recs in the Houston area?
It's likely that any shop can rebuild a carb (even I can), but if finessing is involved, I just don't wann spend any more time on this bike.  Sorry Guzzi lovers, but too many things pulling me in other directions.  I just want to bolt them on, start it up and ride to run errands.
I don't even have time for "cruising".
Thanks.

Online Antietam Classic Cycle

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #3 on: October 07, 2025, 10:34:29 AM »
Even if you find rebuilt carbs or someone to rebuild them, it still won't be "bolt them on, start it up and ride", adjustments will be necessary for it run right.
Charlie

Online baloo

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #4 on: October 07, 2025, 10:41:20 AM »
Charlie,
Only adjustments should be air/fuel mixture needle, right?
...well maybe throttle cable.

Online Antietam Classic Cycle

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #5 on: October 07, 2025, 11:23:50 AM »
Charlie,
Only adjustments should be air/fuel mixture needle, right?
...well maybe throttle cable.

Balance at idle and sync when opening the throttle, idle mixture screw adjustment.
Charlie

Offline monkeyodeath

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #6 on: October 08, 2025, 12:21:59 PM »
Seems like the most obvious answer that requires the least time is to take the bike to a mechanic who can rebuild the carbs and get them adjusted. Then you can show up at their shop and ride away.

"Finessing" is kind of part of the deal of installing carbs, no?

Online baloo

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #7 on: October 08, 2025, 12:50:27 PM »
Seems like the most obvious answer that requires the least time is to take the bike to a mechanic who can rebuild the carbs and get them adjusted. Then you can show up at their shop and ride away.

"Finessing" is kind of part of the deal of installing carbs, no?

Yah, guess I knew that all along (take to mechanic, and finessing being part of the job) -- just hoping for some magic.  I'm too overwhelmed with the numerous car projects begging to get done, so I'm looking for an easy fix on the bike.

My unfortunate and 51% of the time experience with mechanics has been bad -- I end up fixing what was fixed, or fixing what they screwed up, or fixing the real problem myself -- but paying far too much for their errors or for parts that really did not need fixing.

OF COURSE, every mechanic bitches about the previous mechanic who worked on the car/bike, and swears they do not do such sloppy and inept work -- until I get the vehicle back from them; THEN I hear how this and that was so screwed up on the bike that it was the best they could do, or that they found 10 other problems associated with the problem, OR while they were there, this or that needed to be fixed or the bike would have xploded, etc.  I should have started documenting the excuses starting back in 1972.

Ultimately it ends up I could have done the job myself, with the same (or better) results.  It's also how I learned so much about working on cars over the decades.

Tell me, some of you know exactly what Im talking about.

Offline bigbikerrick

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #8 on: October 08, 2025, 12:51:44 PM »
Listen to Charlie,and monkeyodeath.   :thumb:
Rick.
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Offline guzzisteve

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #9 on: October 08, 2025, 04:43:15 PM »
You could go to MPH, isn't any better, pay & go ride.
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Offline Turin

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #10 on: October 08, 2025, 06:54:03 PM »
I don't know of any source of remanufactured Dellorto carbs. Dellorto Direct doesn't seem to be around anymore.

MPH's website https://mphcycles.com/
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Online DaGootz

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #11 on: October 08, 2025, 08:01:19 PM »
89 Mille GT - I'm tired of messing with my carbs, and thinking there's a source for already rebuilt PHF30 (stock) Dellorto's, right?
Any recommendations where to find a pair of these?

I can rebuild carbs, but I've got too many other projects (cars) that need the attention!
What can go wrong with them where they need "rebuilt"? ...unless someone was in there hacking things up. or water in the bowls, or you need external work like syncing/idle adjustment like Antietam Cycle said.

Offline Cdn850T5NT

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #12 on: October 09, 2025, 04:09:55 PM »
What can go wrong with them where they need "rebuilt"? ...unless someone was in there hacking things up. or water in the bowls, or you need external work like syncing/idle adjustment like Antietam Cycle said.
I guess the diametral difference between slide and carb-slide-bore can become sloppy; the accelerator pump ramp on the slide can become worn?

Can someone turn them into 32mm carbies by fitting new slides in bored-out bores, and opening up the air-flow passage to 32mm?
« Last Edit: October 09, 2025, 04:10:56 PM by Cdn850T5NT »
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Online Frenchfrog

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Re: Source for rebuilt PHF30 carbs? (Mille GT)
« Reply #13 on: Today at 08:29:48 AM »
opening them up is not as simple as it sounds ...and it leaves the slide bore untouched.
New PHF's are still available ...I bought several sets a while ago.


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