Author Topic: (SOLVED 8.21.11) First hiway ride problems cb550 (Read 9638 times)

Sdsbassist · « **Reply #25 on:** August 03, 2011, 07:16:41 AM »

What does +1 mean in terms of jet size?

bollingball · « **Reply #26 on:** August 03, 2011, 07:33:41 AM »

+1 just means he is in agreement with what the other guy said nothing to do with jets

Ken

Sdsbassist · « **Reply #27 on:** August 03, 2011, 10:35:34 AM »

Smaller size. Right?

Sdsbassist · « **Reply #28 on:** August 03, 2011, 10:44:43 AM »

I mean bigger. Something like this?

http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-carburetor-parts-keihin-cv-secondary-jet-130-026-058.html

Bankerdanny · « **Reply #29 on:** August 03, 2011, 11:30:14 AM »

Unfortunately nobody can tell you exactly which jets are right for you. The best you will get is a suggested starting point, but plan on having several sizes available as you work through the tuning process.

Use the search box at the top right hand part of the screen. Search CB550 jetting, that will bring up the many many posts on this subject.

Make sure that you understand the 'plug chop' process too. The condition of your plugs across the rev range will tell you if you are lean or rich. You also need to understand which parts of the fuel delivery system come into play and at what time. Rich at idle doesn't mean you will be rich at the upper end of the rev range, etc.

Carb tuning is half art and half science. Expect it to take time, and don't plan for perfection because you won't find it. Shoot for running very good, don't bother with great, expecially with pods on 550.

jneuf · « **Reply #30 on:** August 03, 2011, 12:02:20 PM »

The link from Dime City you posted is showing #130 mains....again, I'm not a jetting expert, but I think that'd make you really, REALLY rich...

If your '75 CB550 still has the stock carbs, main jets should be #100, again, that is if everything is stock. Most people here will know more about this than me, but I'd probably start at 105's and go up from there...

Bankerdanny · « **Reply #31 on:** August 03, 2011, 01:35:33 PM »

He has pods AND straight pipes. he will need to jump more than 5, but I agree that 130 seems to big for a first attempt.

Sdsbassist · « **Reply #32 on:** August 03, 2011, 02:14:23 PM »

Im gonna roll with a 110. Wheres the place to get em?

jneuf · « **Reply #33 on:** August 03, 2011, 02:20:52 PM »

Since they're cheap, I'd order more than just the 110's...That way if they aren't enough, you have others on hand that you can swap in right away, as opposed to having to wait for them to get shipped to you.

Sdsbassist · « **Reply #34 on:** August 03, 2011, 02:22:23 PM »

Good plan. Cheapest place?

Sdsbassist · « **Reply #35 on:** August 03, 2011, 02:48:23 PM »

Went back to my old frienda at dime city and bought 110s and 120s. While carbs are off and waiting gonna do a valve ckeck, new pluvs and float level. Still not sure how I will sync

Bankerdanny · « **Reply #36 on:** August 03, 2011, 03:13:12 PM »

bench synch while they are off.

Usually Carb #2 (2nd from left when facing forward) has a fixed slide. A paint stirer should fit in the carb, draw a line with a marker to indicate the slide height, then adjust the others to match. Also set your air screws to the proper factory setting. This gives you a baseline to adjust from.

Sdsbassist · « **Reply #37 on:** August 03, 2011, 03:28:38 PM »

Ok. I think ive been screwing a sync up those whole time. Which screws do I turn? The three in between the carbs?

Bankerdanny · « **Reply #38 on:** August 03, 2011, 08:09:26 PM »

One of the other 550 guys will have to answer that one. Your bike has different carbs than that.

Sdsbassist · « **Reply #39 on:** August 17, 2011, 03:57:35 PM »

Ok.so got jets put in and synched. Adjuated floats. Same sh#t. What other things would cause sputtering when it warm atlow and highspeeds?

TwoTired · « **Reply #40 on:** August 17, 2011, 04:08:23 PM »

What do the spark plug deposits tell you?

When was the last routine 3000 mile tune up check list completed?

Sdsbassist · « **Reply #41 on:** August 17, 2011, 04:13:16 PM »

If white too lean? Then unscrew mix?

If black too rich? Tighten?

TwoTired · « **Reply #42 on:** August 17, 2011, 04:39:26 PM »

Have you seen this?
http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

And this?

TwoTired · « **Reply #43 on:** August 17, 2011, 04:42:05 PM »

Oh, and if you didn't begin with a fresh tune up check list completion, then you are just masterbating the carbs.

Sdsbassist · « **Reply #44 on:** August 17, 2011, 05:10:09 PM »

Im good at masturbating, just not carbs. Did I say that?

This happens at all speeds after it starta. Nothing wfo, everything....im gonna get plugs tonight....

Sdsbassist · « **Reply #45 on:** August 17, 2011, 08:29:01 PM »

So how the f### do you get out plug 3?

Tews19 · « **Reply #46 on:** August 17, 2011, 08:34:37 PM »

Go to Sears and get a thin walled 18 mm deep socket... How did you get out 2 but not 3?

Sdsbassist · « **Reply #47 on:** August 17, 2011, 08:38:08 PM »

2 was close 3 no dice. still hopin for plugs! Had 3 with soot 1 a nice tan

Tews19 · « **Reply #48 on:** August 17, 2011, 08:40:56 PM »

Quote from: Sdsbassist on August 17, 2011, 08:38:08 PM

2 was close 3 no dice. still hopin for plugs! Had 3 with soot 1 a nice tan

I am confused as to what you are saying.. You got number 2 out but not 3?

Sdsbassist · « **Reply #49 on:** August 17, 2011, 09:02:52 PM »

The one under my right leg by the tach cable

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Author Topic: (SOLVED 8.21.11) First hiway ride problems cb550 (Read 9638 times)

bollingball