Carby my carb won't fit!!!
- Thread starter danmarjon
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motorpsycho
Active Member
yes, you can buy an offset intake manifold which is shaped like a Z.
there is a place on line that sells them called jnmotors.
you might also be able to get a billet aluminum intake, which is shorter than the stock one, but i have no idea what the actual length of it is...might still be too long.
there is a place on line that sells them called jnmotors.
you might also be able to get a billet aluminum intake, which is shorter than the stock one, but i have no idea what the actual length of it is...might still be too long.
thanks, I'll look into that, I do not think shortening it will work. what about using copper fittings to make this offset? I think all I need is a 45 elbow and a way to attach it to the carb and manifold. I cant think of any reason this would not work, but I'm not sure
motorpsycho
Active Member
well, yes you can use the copper fittings but you MUST use acid flux and silver solder to connect it to the intake tube to get a 100% seal.
if you have ANY air leaks, it will make your engine run too lean (and like ****).
It can work if it's done right....but you want 0 air leaks and a perfect seal at all joints.
justinsidethegates
New Member
^he's right about the air leaks but short of soldering you could use 5/8" hose to connect the carb to the a copper 45 street elbow and 1/2" to connect to the intake. Lowes had that elbow for me while home depot didnt. the 1/2" is a very tight fit but is doable. 4 1/2" hose clamps and ur good. It needs to be the street elbow to fit one end over the carb.
Or you can run a 2" piece of 1/2" of hose that allows it to bend slightly sideways and rest against the seat tube or long enough to get the carb just past it.
Also the short intake does work if you want to buy it. it brings it towards the engine a bit and drops it about an inch.
My first bike(recently sold) was a Raleigh M-80 that was a tighter fit from the top bar and about the same from the seat tube. I simply disassembled the intake so it had the plastic circle thing over the filter and the 2 bolts through it to hold it to the intake but not tightly so it can breathe. The bolts would rattle out so i also put a hitch pin on each one to secure them. Great if you want to just get it up and running while you think about the way you want to go with the carb to intake adapter...
Good luck on you build and dont forget to load pics when done.
Or you can run a 2" piece of 1/2" of hose that allows it to bend slightly sideways and rest against the seat tube or long enough to get the carb just past it.
Also the short intake does work if you want to buy it. it brings it towards the engine a bit and drops it about an inch.
My first bike(recently sold) was a Raleigh M-80 that was a tighter fit from the top bar and about the same from the seat tube. I simply disassembled the intake so it had the plastic circle thing over the filter and the 2 bolts through it to hold it to the intake but not tightly so it can breathe. The bolts would rattle out so i also put a hitch pin on each one to secure them. Great if you want to just get it up and running while you think about the way you want to go with the carb to intake adapter...
Good luck on you build and dont forget to load pics when done.
motorpsycho
Active Member
well yeah you could do it that way with hose and clamps, but personally i don't think it would look as good done that way. and it may not last very long. The carb can and will vibrate back & forth with a peice of hose connecting it to the intake. trhis can cause issues with the float, needle and seat in the carb.
Plus the weight of the carb will always be pulling down on the rubber hose.
The hose can and will deteriorate over time because of constant contact with gasoline.
If it were me, i woudl either buy an offset intake that is all one peice (less chance of an air leak
) or i would solder or weld my own intake tube together out of sopper tubing, or steel.
But, that's just me.
I'm all about how things loo as well as how they function and i think it looks bad when you see an intake tube or other parts that look all cobbled together with hose clamps and rubber tubing.
Plus the weight of the carb will always be pulling down on the rubber hose.
The hose can and will deteriorate over time because of constant contact with gasoline.
If it were me, i woudl either buy an offset intake that is all one peice (less chance of an air leak
) or i would solder or weld my own intake tube together out of sopper tubing, or steel.
But, that's just me.
I'm all about how things loo as well as how they function and i think it looks bad when you see an intake tube or other parts that look all cobbled together with hose clamps and rubber tubing.
well, at least I know I have some options, so I can continue with this thing. Here is what I am planning to do, once I get this soldered I'll paint it silver to match, I'll put a few slices in the reducer and add a hose clamp to the existing intake tube with some Teflon tape. I may have to put some type of hanger to help support it. Ill let you know how it turns out
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motorpsycho
Active Member
that looks like it'll work.
try to get the float bowl as level as possible. (vertically and horizontally). If it's at too much of an angle, it could cause the carb to run out of gas too soon or flood over.
try to get the float bowl as level as possible. (vertically and horizontally). If it's at too much of an angle, it could cause the carb to run out of gas too soon or flood over.
Big Red
Active Member
Carb fit
Motorpsycho is right. Acid flux and silver solder. I tried regular solder and the vibration tore it apart. And get the carb leveled out. But it looks what you've got going should work just fine.
Big Red.
Motorpsycho is right. Acid flux and silver solder. I tried regular solder and the vibration tore it apart. And get the carb leveled out. But it looks what you've got going should work just fine.
Big Red.
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