Topic: new carb boots or buy pods?

[lefty2023]

The bike is a 77cb550k. sorry if this is a repost, I've been working on a high idle problem. I'm pretty sure i have a air leak in 1 maybe 2 of my carb boots causing the idle to fluctuate. i replaced both throttle cables so they should be the problem. i looked around to order new carb boots and didn't see many for sale and then i thought maybe i should get pods instead. the bike is stock and reliably daily driven. are pods overrated? it sure would be a ton easier getting the carbs on an off but what are your thoughts?

[w1sa]

okkkkk.....If your'e talking about boots from carb to engine and concern about air leaks 'cause you can't get them to seal.....pods aren't going to help the air leaks  or anything else to do with the reliable running and performance of the engine.

[lefty2023]

no, I'm talking about carb boots from the air box to the carbs.

[phil71]

even if those boots are s@!tty, they're not causing your high idle. probably the result of an improperly done sync, or timing advanced either on purpose, or by a stuck advancer. If you put pods on, a high idle will be the least of your problems on that particular bike.

[lefty2023]

oooook, thanks!  the timing advance was the next thing i was going to looking into.  i have a carb sync gauge so I'm certain thats not it.

[phil71]

Let me rephrase. You can sync your carbs with a gauge and still do it wrong. Lets say you brought all the slides up to match the level of the highest one.. it would be in sync, but the slides would no longer fall all the way home. Know what I mean?

[bollingball]

"it sure would be a ton easier getting the carbs on an off." Once you get every thing setup properly you will not need to take the carbs off for a long long time. Over a year. You just think you have problems now try pods and and then see what you think.

[TwoTired]

You have a 77 CB550K with PD carbs?
You used Clymer numbers to set the float height?  How about the other parameters for PD carb set up?  Does Clymer even know that PD carbs exist?
What have you set the Idle Mixture screw to?

Stock 4 to 4 exhaust?

Your sure the carb couplers to manifold aren't leaking?

Pods will make it easier the remove and install carbs.
Pods will guarantee that you will be removing and installing carbs a lot.

Check with
http://www.classicmotorcyclesolution.com

See if they make the airbox couplers for the 77-78 PD carbs.

[lefty2023]

You have a 77 CB550K with PD carbs?
You used Clymer numbers to set the float height?  How about the other parameters for PD carb set up?  Does Clymer even know that PD carbs exist?
What have you set the Idle Mixture screw to?

Stock 4 to 4 exhaust?

Your sure the carb couplers to manifold aren't leaking?

Pods will make it easier the remove and install carbs.
Pods will guarantee that you will be removing and installing carbs a lot.

Check with
http://www.classicmotorcyclesolution.com

See if they make the airbox couplers for the 77-78 PD carbs.

yes i have the clymer manual but i read it wasnt correct for my carbs. i set the float height to 14.5mm.  idle screw is 1 1/4 turn out. i sprayed started fluid on the carb couplers to the manifold and i didnt get any RPM increase, only when i sprayed the air box to carb boots did the RPM increase.

[lefty2023]

Let me rephrase. You can sync your carbs with a gauge and still do it wrong. Lets say you brought all the slides up to match the level of the highest one.. it would be in sync, but the slides would no longer fall all the way home. Know what I mean?

thankyou, ill look into that tonight! what exactly is "all the way home." just a tiny bit of light going through?

[78whiteorbs]

"Pods will make it easier the remove and install carbs.
Pods will guarantee that you will be removing and installing carbs a lot."

Well put.

[phil71]

They should bottom out. An idle circuit is , in effect a "bypass" to meter just a little air and fuel past the closed slides.

[TwoTired]

Let me rephrase. You can sync your carbs with a gauge and still do it wrong. Lets say you brought all the slides up to match the level of the highest one.. it would be in sync, but the slides would no longer fall all the way home. Know what I mean?

Phil,
The PD carbs do not have slide height adjusters for #2 carb.  Because of this, full reach of the slides to the bottom are "designed in", and you must sync the carbs to that #2 master carb, which always has the proper reach.  This avoids the problem of earlier style carbs that allow all the adjusters to be skewed and lose the bottoming reach capability.

Cheers,

[phil71]

Oh right.. PD carbs! Still worth a quick look at 1/3/4.. And that timing

[lefty2023]

alright, I'm not getting pods. i took out my timing advance and cleaned it up a little. i also adjusted the points slightly and it idles much better, for now! thank you u all

[spiritof67]

Just say "NO!" to pods for any reason, please. Probably the most over-rated "performance" item of the last 30 years, and the cause of more carburetion problems than that corndog in your gas tank that you subsidize at 45 cents a gallon.