Carbs 1973 CB750

[rrgunslinger]

Decided to take another look at my carbs.  I have this float adjustment tool.

[rrgunslinger]

This is what I used last time.  

[cdaiscool]

They look so... well, SMALL. Mine are so much more complicated! Lol.

[rrgunslinger]

Wanted to give a pic of how the tool worked.  I adjusted each carb and they are not dripping any  gas.

 

[rrgunslinger]

Back on..

[blk72750]

Gunslinger those look good- thanks for posting those pics- that small part that connects the between the 2 and 3 carb and hooks the throttle spring fell out of mine before I knew what the hell it was. I had my spring going pulled down to the cam chain tightener.

Also I was going to ask are you getting fuel to your 3 and 4 carb with those fuel filters. Looks they've been on the bike a while. I tried to get my fuel filter right under the petcock then loop through the carb housing but it kept pinching. Thanks for the pics Im going to try this out.

[rrgunslinger]

Good eye there.  Yes it seem to get plenty of gas but I did screw up one thing.  I run a tube from carb 2 to carb 3 as I did not understand what those hose fittings sticking out of them were for.  After looking at Bike bandit I saw there is only a hose that goes on each one and runs to the back and down to the ground.  I had connected them and I am sure that was part of my problem. I was experiencing. Also I was thinking about running the hoses the way it came, from the top just to see. Not a whole lot of room there but if I take the petcock bowl off I think it will be easer. However I did put over 400 miles on her setup the other way.

On Mon, May 14, 2012 at 10:41 AM, blk72750 [via Honda CB750'S] <[hidden email]> wrote:

Gunslinger those look good- thanks for posting those pics- that small part that connects the between the 2 and 3 carb and hooks the throttle spring fell out of mine before I knew what the hell it was. I had my spring going pulled down to the cam chain tightener.

Also I was going to ask are you getting fuel to your 3 and 4 carb with those fuel filters. Looks they've been on the bike a while. I tried to get my fuel filter right under the petcock then loop through the carb housing but it kept pinching. Thanks for the pics Im going to try this out.

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[rrgunslinger]

Ok I decided to sync the carbs tonight.  Here are a few steps.









Sorry about the crappy pictures.

[rrgunslinger]

Bad thing is I worked on them for over an hour and just could not get them in sync,  So I just had to stop before I broke something.  
Another day!  

[rrgunslinger]

Ok I'm done (again)  
This is how I plug open vacuum holes.



A must have tool, cuts just about anything.  

[rrgunslinger]

https://www.facebook.com/video/video.php?v=3242319629434

Any Questions?
Just a little info,  Stock Carbs with 120 jets.  Had to set the air screws out 2 turns to get it to idle. That's about it. I'm running a Mack 4 into 1 .  Motor has 30,000 miles on it.

[shinyribs]

Have you gotten to ride it yet with that particular tune on it? I'm just wondering how the cone style pods act compared to the oddballs I have. Pure curiosity.

[rrgunslinger]

Not yet, started raining hard.  Looks like rain tomorrow also. I will let you know when I do.  Wounding how it will do also.

Harvey

On May 16, 2012 11:52 PM, "shinyribs [via Honda CB750'S]" <[hidden email]> wrote:

Have you gotten to ride it yet with that particular tune on it? I'm just wondering how the cone style pods act compared to the oddballs I have. Pure curiosity.

Montvale,Virginia
 Piute said it best:  "wheres my 10mm?"
Hellbilly-"that is a great way to tell if you have come to your senses, when you start drilling random holes in things... "

LukeM-"Scooters rock, especially when they're in posse formation. "

Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato

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[Lucky 1]

Were they#35mm stock idle jets?  Bet they were.
I would try #40s then you will not have to turn the air screw out so far.
MAC 4 into 1 exhaust.

[rrgunslinger]

Yes idle jets are stock.

Harvey

On May 17, 2012 8:41 PM, "Lucky [via Honda CB750'S]" <[hidden email]> wrote:

Were they#35mm stock idle jets?  Bet they were.

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[rrgunslinger]

Took her out today and seems to run good.  Pulls all the way to 7000rpm (with 30,000 miles on the clock I don't want to push it).  Now time will tell.

[shinyribs]

Coooool! You ain't gonna hurt her,and if you do...there is always a 836 kit on ebay

[Half-Caf]

shinyribs wrote

Coooool! You ain't gonna hurt her,and if you do...there is always a 836 kit on ebay

Shiny, I have officially decided that you are a bad influence. Just thought I'd let you know...
Btw, 7k is nothing for these motors, I just wanted to give Ribs some grief

[shinyribs]

[rrgunslinger]

I still have one carb popping. Would that be out of sync?

Harvey

On May 25, 2012 8:40 PM, "shinyribs [via Honda CB750'S]" <[hidden email]> wrote:

Montvale,Virginia
 Piute said it best:  "wheres my 10mm?"
Hellbilly-"that is a great way to tell if you have come to your senses, when you start drilling random holes in things... "

LukeM-"Scooters rock, especially when they're in posse formation. "

Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato

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NAML