Popup carbs

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Robeartato

Re: Popup carbs

Post by Robeartato » Fri Sep 11, 2020 9:00 pm

Itstillruns has this to say about carb air leaks:

"The engine's idle speed is usually the first indicator of a manifold leak, preventing the engine from starting or creating an erratic engine idle speed that shifts between 500 to 2,000 rpm. This is normally caused by a smaller intake leak and is identified as an idle. The idle may stabilize as the rubber intake manifolds warm and expand. Carburetor manifold leaks can also cause frequent backfiring and popping or a power-loss that worsens over time."

Weird idle that stabilizes at 2k revs when she's warm, and power loss... I think Lex was right

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Re: Popup carbs

Post by SamK » Fri Sep 11, 2020 9:36 pm

Robeartato wrote: Weird idle that stabilizes at 2k revs when she's warm, and power loss... I think Lex was right
It certainly looks that way.. but I’ll be buggered if I can find it Image

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Re: Popup carbs

Post by SamK » Sun Sep 13, 2020 10:37 am

So... carbs off again yesterday and every jet and orifice blown through with carb cleaner and compressed air.

Full power has now been restored... but revs still racing at idle, although it doesn’t seem so bad now.

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Re: Popup carbs

Post by Lexdba » Thu Sep 17, 2020 8:09 pm

You should invest in a ultrasonic cleaner. They're cheap from the big rock candy mountain. Carb clean works wonders but nothing beats an ultrasonic bath with a good additive!
It's faster to break than to repair.

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Re: Popup carbs

Post by SamK » Mon Sep 21, 2020 11:26 am

Lexdba wrote:You should invest in a ultrasonic cleaner. They're cheap from the big rock candy mountain. Carb clean works wonders but nothing beats an ultrasonic bath with a good additive!
Started looking at those. What would be a minimum capacity?

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Re: Popup carbs

Post by PaulD » Mon Sep 21, 2020 1:44 pm

I’ve got a 6.5ltr one and I can get two 1100 carb bodies in at the same time
There rubbish them Jap bikes lad they won't last five minutes! you want to get yourself a nice Royal Enfield!
A quote from my old dad 8-)

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Re: Popup carbs

Post by Lexdba » Mon Sep 21, 2020 3:22 pm

Don't buy a expensive one from China directly; they are prone to failure.
I do agree with Paul, bigger is better. I used to own this absolute chonker but it blew up within a year and I was SOL. Got a small very cheap one now that has lasted way longer and works fine. My next big one will be an ex laboratory EMAG but you're looking at upwards of 500 quid for one of those.
photo_2020-09-21 17.19.54.jpeg
photo_2020-09-21 17.19.58.jpeg
photo_2020-09-21 17.19.59.jpeg
Could almost swim in that :lol:
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Re: Popup carbs

Post by SamK » Mon Sep 21, 2020 3:32 pm

PaulD wrote:I’ve got a 6.5ltr one and I can get two 1100 carb bodies in at the same time
Do you think a 3ltr one would be sufficient for a single carb body?

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Re: Popup carbs

Post by SamK » Mon Sep 21, 2020 3:34 pm

Lexdba wrote:Don't buy a expensive one from China directly; they are prone to failure.
I do agree with Paul, bigger is better. I used to own this absolute chonker but it blew up within a year and I was SOL.

Could almost swim in that :lol:
Was just looking at that brand (no brand) on Amazon. Also come in 3 & 6 litre variants.

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Re: Popup carbs

Post by Lexdba » Mon Sep 21, 2020 3:38 pm

I believe this is a 1L and fits half a carb. So I'd say a 3 should do the trick!
photo_2020-09-21 17.37.47.jpeg
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