kz550 bogg help needed!

82 kz550 ltd. Stock air box. Stock pipes. i just did a carb tune. it idles like a brand new bike(1000 rpm). it rev quickly under NO LOAD like a new bike. when i ride it and get throttle slowly it does just fine. Here is the problem, when i dump the throttle wide open really quick, the bike boggs down and sputters. CAn anyone help me?

jkyle187 wrote:

82 kz550 ltd. Stock air box. Stock pipes. i just did a carb tune. it idles like a brand new bike(1000 rpm). it rev quickly under NO LOAD like a new bike. when i ride it and get throttle slowly it does just fine. Here is the problem, when i dump the throttle wide open really quick, the bike boggs down and sputters. CAn anyone help me?

Depends on how quickly you are going wide open. That bike uses a manual slide carburetor. You can't turn the throttle as fast as possible, from idle, without a bog on that type of carb. It needs to be rolled gradually as the RPMs increase.

From idle to full throttle should take .5 to 1 second in neutral. If you take 1 second to go from idle (1200 to 1300 RPM) to full throttle (in neutral), and it bogs noticeably or backfires or stumbles, you probably have a problem.

You should be able to do it in about half a second, if you start slowly and finish fast.

In first gear it takes a little longer... maybe between 1 and 2 seconds.

Post edited by: loudhvx, at: 2007/01/15 14:14

did you pull out the emulsion tubes and clean them also? it sounds like they could be partially clogged. i hope this helps.

Ok let me start over. 82 kz550 ltd. stock air box. stock exhaust.
I just did a carb tune with my electronic carb tuner. This bike idles like a new bike @1000 rpms. If I rev the throttle fast in neutral, it does fine. No miss fire or decel pops, just like a new bike. I can ride the bike all day long like a grandmaw.
Problem: from any speed 1/8 or greater quick throttle acceleration it starts to bogg. Trying to go up hills; even if I down shift, it boggs trying to mantain normal speed . I can't kick it like a passing gear.

Check cylinder compression!

What are the specs for the comp test?
Does anyone know if I can adjust the cam chain on this year? I see it under the carbs.

Have you put a timing light on it? The ignition advancer may be stuck.

Carb floats set?
What color are the spark plugs?

Ok here is the scoop. I took carbs off and all of the jets were clogged. So I have taken them apart,soaked them and clean them. Now Im ready to put them back on. I have 4 questions.
1. What are the specs for a compression check.
2. What are the specs for the air/gas(mixture screw) needle.
3. When balancing these carbs which carb is the reference carb?
4. Is there anyway to adjust the timing chain adjuster eventhough its automatic.

82kz550 LTD

Post edited by: jkyle187, at: 2007/01/25 22:32

Ok the magic is going...put carbs back on...did a manual float test, adjust height. 2 turns out on mix screw, new plugs, new wires, new filter, new in-line fuel filter, carb balance, check timing, adjusted clutch, SHE IS ALIVE! SHE IS ALIVE! MUHAHAHAHAHAHA! Man she runs like a new bike...Time to celebrate! Thanks VERY VERY MUCH GROUP!....

Post edited by: jkyle187, at: 2007/02/04 22:44

Here

Post edited by: jkyle187, at: 2007/02/04 22:48

here