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Carbs out of order ??? 1-3-2-4 ????

exdirtbiker

exdirtbiker

Forum Mentor
These are not my carbs... my rack currently has the center 2 carbs swapped, I think. please check the pic, is this pic correct ?? the air screws should be as pictured ? ( left-left-rt-rt,l looking from left to rt )
my air screws are facing left-rt-left-rt.
I believe the p.o. mixed them up, so I have 1-3-2-4.
I'm kinda sure, so I'm going back to garage to move them now, just hoping you guys will confirm.
thanks again.


IMGP0692.JPG
 
So maybe that's why the bike ran really "goofy" over 6000 rpm?
Both outer carbs had the vents blocked, and the 2 inner had no hose... just open vent.
Jeeeeze.... this is never ending !!!
Someday, I will get to actually RIDE this bike !!!!!

10-10-12004.jpg
 
The vents on #2 and #4 are drilled through to the floatbowl. They give an atmospheric pressure reference so the carbs can meter fuel correctly. They need to be open, the hose on or off is not as important. Usually the hoses are removed to run with pods, and leave the hoses on if using an air box. The hoses just go up over the airbox and dangle there unattached on the other end. The nipple on #3 should be drilled through to the carburetor bore, it supplies the vacuum to operate the petcock. If you are using a non vacuum petcock, it needs to be capped off.
 
I'm not seeing it. What specifically leads you to think the carbs are out of order.
 
Nessism said:
I'm not seeing it. What specifically leads you to think the carbs are out of order.
Click to expand...

the pic is not his carbs, he is using this pic of his mates carbs to compare it with the carbs he has got, which are obviously in the incorrect order
 
Again, look at how the carburetors are drilled to be sure. #3 is drilled through to the bore. #2 and #4 are not. The air screws are not always on the correct side.
 
exdirtbiker said:
These are not my carbs... my rack currently has the center 2 carbs swapped, I think. please check the pic, is this pic correct ?? the air screws should be as pictured ? ( left-left-rt-rt,l looking from left to rt )
my air screws are facing left-rt-left-rt.
I believe the p.o. mixed them up, so I have 1-3-2-4.
I'm kinda sure, so I'm going back to garage to move them now, just hoping you guys will confirm.
thanks again.


IMGP0692.JPG
Click to expand...


The simplest way to determine which carb is which is to sort them by air screw side, as you note.

Then, check the intake side and look for a hole in the bore - that is #3

check the fuel ports and sort out #1 and #4, you won't be able to see thru them

The last carb, #2, has the air screw and vent on the left and you can see thru the fuel port
 
I am confused, in these pics you have VM (i think) carbs on it but in your Craigslist ad it looks like you have BS carbs on it?
Whats up with that?
 
let me clarify...
I gave up on the whole bike.
Yes, I'm selling it now.
Stock VM26 carbs.
Loud ET, I don't have a craigslist ad. Yet.
 
Last edited:
Agemax said:
why have you just gave up on it? we just gave you the answer to your dilemma! :confused:
Click to expand...

Yes, Thanks again to all of you guys... I could never have got as far as I did without all of the awesome help from everyone. Including Steve and his Valve speadsheet. :)

:)
 
Last edited:
Steve said:
If you gave up on something this simple (after getting a bunch of correct answers), you may as well just sell the bike now.
icon_shrug.gif


.
Click to expand...
And Steve assassinates yet another promising GS newbie. :p
 
It's not that this -ONE- thing has me stumped...
I know I could get though it if I cared anymore.
But it's the "I gotta fix the carbs, and I can ride it tomorrow".. only to find I need another 3 weeks of tinkering and another $100 I really didn't want to spend...
EVERY (Bleeping) TIME I TOUCH THE BIKE.
It has become "work" to me. I already have 2 jobs. 3 is not "fun" anymore.
 
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