[allanfox]

haha, sorry my error!

I am hoping it indicates a good set up as ridden regularly and without mercy, plug colour is pretty good too but I do prefer a tad rich to a tad weak. Appreciate all the carbs you can fit but the good old 32mm Amal works for me, I do like a tickler as it does mean easy starting and it drops straight into a nice 'duff, duff' tick over, if I can I let it sit and warm for a minute until the revs just raise a bit before riding. The choke adds nothing (maybe as I have it rich) but the same as any Amal i guess.

There is PHF 32 on the shelf that I do need to try but, 'if it ain't broke etc' 

[Steelaway]

Be aware that there is a reason that the knock off is $45. Don't build in trouble by fighting marginal parts. Fighting mystery carb tuning isn't a lot of fun. About a month into it you may well regret not getting that $300 Mikuni kit...

Pricepart sell Wassell carbs ready to go in the $100 range - many here like them. The ?PWK? brand is highly thought of too. A good knowledge base exists.
https://www.pricepartmotorcycles.co.uk/ourshop/cat_316500-Wassell-Carburetors-and-parts.html

A friend's 500 Velocett piston running just a little too hot 

[Adrian II]

I had a BSA B40 SS90 piston start to melt, it sagged around the ring lands fore and aft. With the rings removed it looked like the thing was grinning at me.

So what carb was that Velo running?

A.

[Steelaway]

The Chinese Mikuni carb has arrived and I must say that I'm very impressed with the quality.

It has a brass slide and apart from a slight blemish in the chrome plating it looks just like any Mikuni carb.
It has a two stroke i emultion tube but that shouldn't make much difference .
Even the jetting seems pretty close to the figures I found by a chap that had done some tests with a 32mm.
It's looking good

[tooseevee]

The Chinese Mikuni carb has arrived and I must say that I'm very impressed with the quality.

It has a brass slide and apart from a slight blemish in the chrome plating it looks just like any Mikuni carb.
It has a two stroke i emultion tube but that shouldn't make much difference .
Even the jetting seems pretty close to the figures I found by a chap that had done some tests with a 32mm.
It's looking good

            Oh, good. This will get interesting now.

            You got a round slide, right? With a tickler?

             Let the jet game begin 

              Good luck

[Raymond]

. . . continuing to watch this thread with interest  . . .

[Steelaway]

Round slide but no tickler only a choke.
It is a modern carb

Specifications

For Mikuni Round Slide VM Series Carburetor 32mm Bore
Inlet Bore Size : 32mm,.D.
 Mounting : 40mm,
Main Jet : 200, :
 35
Throttle Valve: 3.0 , 35 (VM22/210), Needle 6DP17,
Needle 6 (159 Series), Main (4/042)
0,
Slide Cutaway 3.0 (VM34/110),
Needle valve 3.3 (VM34/39)


https://www.ebay.co.uk/itm/385069835718?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=n914arF-QvC&sssrc=4429486&ssuid=hBel7GEQQdW&var=&widget_ver=artemis&media=COPY

[Steelaway]

I had a BSA B40 SS90 piston start to melt, it sagged around the ring lands fore and aft. With the rings removed it looked like the thing was grinning at me.

So what carb was that Velo running?



Not the mixture, it was running on the rich side
The only thing that was miles out was the ignition timing
A.

[Steelaway]

My mate is having some success with his Bullet and MK2 Amal

[Adrian II]

They work on Electra-Xs too. Bullet Whisperer once got one up to 103mph, but that was with a 36mm Amal Mk2 (while you still get the bigger ones new) and a change of cams. Let's see how your Mikuni-oid performs.

I admit that red cap over the fuel pipe feed does look a bit like a tickler. Some big Dell'Orto carbs on the old Ducati V twins still had them.

A.

[AzCal Retred]

There's no shame in using what already works!

If you bought the same lash up, you guys could share tuning bits like different slide cutaways & needle jets, etc. You'd also have a leg up on having a functioning mixer, something well worthwhile. I assume that it's at least 32mm, so flow will never be an issue.

[tooseevee]

I admit that red cap over the fuelpipe feed does look a bit like a tickler.

A.

           Yes. I was curious, too (Reply #20), but I think it's just a cover over the fuel inlet fitting to keep the bugs out   

           Like Raymond & Adrian & the rest, I'm very interested. Take notes & keep us in the loop, Steelaway. Good luck in the dialing in game 

[Steelaway]

There's no shame in using what already works!

If you bought the same lash up, you guys could share tuning bits like different slide cutaways & needle jets, etc. You'd also have a leg up on having a functioning mixer, something well worthwhile. I assume that it's at least 32mm, so flow will never be an issue.

He had that Amal on the shelf from way back so free
A new Mk 2 is £160 ---- the 'Mikuni' was £38 and I am Yorkshire man

I do think that the Mikuni is a better carb so I'm hoping it will perform better

[Adrian II]

I noticed Sheffield in your profile, which probably accounts for your choice of forum name.

A.

[Steelaway]

I noticed Sheffield in your profile, which probably accounts for your choice of forum name.

A.

Yep the steel city.
It was also the name of the narrow boat I built