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carb assembly


Banshee Chad

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So I've never really paid attention before. But I'm working on getting jetting dead on.

 

So the washer thing that the cable goes into and holds the needle into the slide... Does it go in so the hole is open or covered? Does it make a diff? What's the hole thre for?

 

I looked in clymers, but no diagram about that.

 

Thanks guys!

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If you were to take a part a virgin carb from the factory the needle hold down will be blocking the hole.. I have tried it either way out of curiousity and it made zero difference.. I do however assemble it with the hole blocked so that any debree that sneaks its way through the cables will not get into the carbs itself!

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It has to stay open or is suppose to as the slide could compress the air like a piston does so the hole is suppose to stay OPEN here is something i copy and pasted from toomey racing

 

There is a hole in the bottom of the

slide on the inside as you look down

from the top. Also notice there is a

passage way on the aluminum cable

holder too. These must lineup! (See

photo)

The purpose of this passage is so

that the slide has an air vent to the

top of the carb.

Otherwise, the slide would act like a

piston in a cylinder and compress air

above it. Once the compressed air

blew out down the sides of the slide

between the slide and the slide bore,

the slide might stick on the way

down because of the resulting vacuum created.

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It has to stay open or is suppose to as the slide could compress the air like a piston does so the hole is suppose to stay OPEN here is something i copy and pasted from toomey racing

 

There is a hole in the bottom of the

slide on the inside as you look down

from the top. Also notice there is a

passage way on the aluminum cable

holder too. These must lineup! (See

photo)

The purpose of this passage is so

that the slide has an air vent to the

top of the carb.

Otherwise, the slide would act like a

piston in a cylinder and compress air

above it. Once the compressed air

blew out down the sides of the slide

between the slide and the slide bore,

the slide might stick on the way

down because of the resulting vacuum created.

 

Interesting, then why would it come blocked from factory? Tors would help in the event of a stick. Did they know wed all get rid of tors?

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IMAG0835.jpg

 

Picture 1 or 2?

 

 

pic 2 is the proper way according to toomey however I installed mine with the hole closed and it didnt seem to make any difference in the way it ran or effect the throttle .I have since made sure both of my slides are like pic 2

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If I had not just gone thru the same exact thing just two weeks ago I would Not have known but I just got an eduaction on banshee carbs the hard way and made several mistakes this being one of them . I just got the thing and hell I didnt even know what a Banshee was three mos ago :confused:

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