Carb inlet replacemnt "T's" source??

[Folsoml]

Here is the final product.

[The_Paragon]

OK, so this is only a vent. That's good. I'm not yet to the point of assembling/installing the carb to know what it did, I only know mine was broken.

I made version of what you did, and it is set up drying right now.

CB650, Can you post a pick of what you made?

I started out pulling my carb rack apart to replace o-rings in the fuel supply connectors and accl pump connectors and found my bike had nothing on it at all besides for a solid tube between the #2 and #3 carbs.

No wonder my carbs dirtied as fast as they do, these ports vent right to the bowls.

Thanks for pics if you can CB650!

[The_Paragon]

Maybe I should flip to the last page before asking for pics. The vent tube you have looks like it should work Folsoml. I might have to try something like that

[The_Paragon]

OK heres an idea..
All 4 carb bowls are all vented together via this system of tubes and T's, What if a guy were to connect the carbs by replacing the T's with a peice of fuel tubing and then install 1 T between carbs 2&3 where there's enough room to stick a plastic T and a line up to vent.

All 4 carbs are connected and still vented together..

It should work right?

[Volker_P]

You really want to drill the carbs just to save one "T"?

[cb650]

OK, so this is only a vent. That's good. I'm not yet to the point of assembling/installing the carb to know what it did, I only know mine was broken.

I made version of what you did, and it is set up drying right now.

CB650, Can you post a pick of what you made?

I started out pulling my carb rack apart to replace o-rings in the fuel supply connectors and accl pump connectors and found my bike had nothing on it at all besides for a solid tube between the #2 and #3 carbs.

No wonder my carbs dirtied as fast as they do, these ports vent right to the bowls.

Thanks for pics if you can CB650!

The carbs are on my parts motor now but next time they are off I'll try and remember.

[The_Paragon]

You really want to drill the carbs just to save one "T"?

I never said anything about drilling the carbs.

[Volker_P]

All right, there seems to be a straight tube (to be repalced by a "T" then) between 2+3 at this level, too.

[gentlemanjim]

You guys realy need to post pics of what you are talking about.

Here's the assembly
1. there are two small rubber "T"s between 1&2 and 3&4 - bowl vents.
2. There are 3 about 3/8" tubes connecting carb 1 with 2 with 3 has a "T" and 3 with 4 with "O" rings. these are the fuel deliver rails from the fuel tank feed line.
3. There are 3 tubes about 1/4" with "O" rings connecting carbs 1 with 2 and 2 with 3 and 3 with 4 - these are accelerater pump delivery lines

The "O" rings are critical and when you assemble the carbs the linkage has a tab with a spring and two washers at the end. It is critical that the washers be separate and slipped over the maiting tabin on the adjacent carbs. This is tricky while still being certain the "O" rings are not pinched. Takes two people for sure.

[Volker_P]

Try this picture:


As I understood The_Paragon wants to replace the center tube "21" with a single "T" and then use straight tubes instead of the two "T's" in red cicles "22".

#7 : fuel tank feed lines
#4+8 : accelerator pump delivery lines

[gentlemanjim]

Nice work Volker_P

To make that change seems it would meed with unlikely success, a lot of work to get the critical dimensions correct. The parts are redily available at hondaparts-direct for about $90.00

[The_Paragon]

Try this picture:


As I understood The_Paragon wants to replace the center tube "21" with a single "T" and then use straight tubes instead of the two "T's" in red cicles "22".

You got it Volker, but after a bit of thought, I realize that wont actually work, Carbs 1 and 4 wont be properly vented that way.

What I ended up doing was used some fuel tubing to connect the carbs where the t's were. the peice of fuel tubing has a hole in the side in which a vacuum tube splice is inserted with of vacuum tube attached to the splice. It creates an adequate vent, and functions like it needs to.

So, since my bike didnt have these T vent tubes in it at all... where are these lines supposed to go? or did they just lead up nowhere.
Edit: I see that they come together and attach to a T (#20) where does that go then?

[old gringo]

Mine are just routed to the rear of the engine

[cb650]

Originally it went to the airbox. But it can hang anywhere. As long as air (pressure) dont get to it.

[cb650]

OK here is one crappy pic of it. I have another pic but the site wont let me post it. Says its too big. My fone re sizes everything anyway. And considering the size of pics that get posted I'm surprised.