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Throttle slide position
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sambrose
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October 12, 2020 - 10:47 am
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I've got an Amal 361 carb and I'm not sure where the throttle slide should sit when the throttle is fully closed?  I assume it should sit lower than that shown in the photo below?  The photo was taken with the throttle is closed.

If it should sit lower do i just need to trim off some of the outer sheath of the throttle cable?

IMG_9687.jpeg

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sunny
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October 12, 2020 - 11:19 am
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  D 1,3,5 & some  D 7  use   the  closed  slide   to  shut off  the  engine     [ the handbook  tells us  to  open  the  throtal  for  starting  ]

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cocorico
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October 12, 2020 - 12:14 pm
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This should give you some idea of how the slide should look at various throttle settings.

Amal-tuning-FIG-5.png

Unless you have changed the cable I wouldn't expect that to be a problem. Do you have the slide assembled the right way? The cut-away should go towards the rear (intake) or the slide, which has a slot in one side which runs up and down the locating pin, will be held at the level of the pin.

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Number6
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October 12, 2020 - 10:22 pm
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Yes it should be able to completely close off the venturi on the engine side. Either the cable is wrong, or twistgrip? Something not right somewhere.

If it helps I recently bought a new cable, it fits fine. So is possible.

Mike H --

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.

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JustinW
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November 14, 2020 - 7:36 pm
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Spring weak?

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sambrose
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November 21, 2020 - 11:08 pm
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Thanks all for the help.  It turns out that my throttle twist grip was sticking partially open, and not allowing the cable to return fully, hence holding the slide slightly open 

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Number6
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November 22, 2020 - 5:52 pm
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Mine's a bit sticky like that actually. Maybe should get a new one?

Mike H --

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.

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