unusual Amals

I removed a pair of Amals from a customers bike and thought they were premiers until I removed the pilot jet and discovered it was just a plug, steel not brass. Never seen this before.

seattle##gs said:

I removed a pair of Amals from a customers bike and thought they were premiers until I removed the pilot jet and discovered it was just a plug, steel not brass. Never seen this before.

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If it is screwed in, the carbs were probably modified by a previous owner to make cleaning the pilot jets easier.

Amal also made non-premier concentrics, I have a set on my current project bike. They have the blanking plug but the pilot jet is pressed in. The slides are not the anodized ones, they do have stay-up floats.

seattle##gs said:

I removed a pair of Amals from a customers bike and thought they were premiers until I removed the pilot jet and discovered it was just a plug, steel not brass. Never seen this before.

Click to expand...

Both of my carbs have this modification. I drilled out the backside of the carb, behind the jet and threaded the hole for a set screw for exactly the reason Greg said... I'd post a picture, but the drilled out side of each carb face each other so I'd have to unmount one of them to take a picture.

If the clean out screw looks exactly like the adjuster screw the only way to tell which is which is the adjuster screw has the bleed on it's side...

I used allen set screws on my clean out screws with blue loctite so there's no mistaking which is which...

I would guess it's a factory job because it's so well done. The plug has the cross slots for a screwdriver identical to the premier pilot jet. This not any old plug.

seattle##gs said:

I would guess it's a factory job because it's so well done. The plug has the cross slots for a screwdriver identical to the premier pilot jet. This not any old plug.

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If you look at the link L.A.B. posted above, the pictures show exactly what you describe. A cut off air idle screw used as a blanking plug on the backside of the jet so both sides of the carb look the same.

seattle##gs said:

I would guess it's a factory job because it's so well done. The plug has the cross slots for a screwdriver identical to the premier pilot jet. This not any old plug.

Click to expand...

Can't be a factory job - or it would be full of swarf,,,, apparently?

seattle##gs said:

I removed a pair of Amals from a customers bike and thought they were premiers until I removed the pilot jet and discovered it was just a plug, steel not brass. Never seen this before.

Click to expand...

I saw them like that right out of the Amal box, If I remember correctly some times only one of the pair I was selling had that screw plugged side. They may have been the "Triumph /BSA type carbs" and Pre- Premier?? with the Tall spray tubes? This before Amal sold "paired sets for different brands". Remember I sold hundreds of pairs and I actually saw and set up what I sold.