How to take part in discussions on other sites? (e.g. the LiveJournal)
Keihin carb jetting question
Hello Guest		   
  • Login
• Register…
• Start blog		   • Who, Where, When
• What is interesting here?
• Duels		   • Polls
• Avatars
• Interests		   • Cities and Countries
• Random blog
• Users search		   • Search
• Games
• Tests
• GYXU		   • Ñîîáùåñòâà
• Talxy Chat
• Horoscope
• Online		  
Register!
GYXU > Kites, widsurfing, waterski > Keihin carb jetting question 1 April 2005 07:11:36
  Recent blog posts: 
pipiska!!!upja4ka!!!pshli…
pipiska!!!upja4ka!!!­­pshli nax!!!

UPJA4KA!!!
TUTSJAPI6!!PI6!ZEPJ EBRILO!!!!!ZAZA!!!T­­ELOIDI, DA! MY – EBANULISJ!!!PI6! PI6! PI6! OJAEBU!!I&hellip­;

Hi!
Hi! I am Kate from Ukraine! I don't now, everything about this website. Also I dodn't know english very…

...
http://gyxu.com/p/lo­­gin.cgi?r=http­://www­.winxclu­b.com/

ONOTOLE NEGODUE
Blin, nu zaipali trabli s ssilkami.Zaxozu kuda to - BAZ! i ja snova gostj.Vxozu i vse norma,no…

4to za xerj ?
Menja 4asto vikidivaet !!!X-(­

Sri Lanka Vs West Indies
Sri Lanka won the first match by more than 100 runs…this is first in West Indies. .unfortunately after…

...
gfgdgd

Fs:,Iphone 8Gb,Nokia…
BUY 2 GET 1 FREE We Are Importer And Exporter Of All Kinds Of Mobile Phones Games,And All…

Blog Feed
http://feeds.feedbur­­ner.com/Tumble­weedRe­altyMaui

  Forums:   
    topic feeds

• GYXU  all topics, blogs and comments

• General

• F1, Indy, Nascar, Rally

• Baseball

• Basketball

• Boxing

• Football

• Soccer

• Hockey

• Rugby

• Tennis

• Pro Wrestling

• Billiard

• Cycling

• Boats

• Kites, widsurfing, waterski

• Diving

• Skiing

• Cricket

• Golf

• Skating

• Buy / Sell

• Anonymous
  Discuss: 
BIC longboards
First post on this group. I just got into windsurfing last year and picked up a BIC longboard, 5.5…

Jerry McEwen RIP
I only today learned of Jerry's passing. I'd known him since he was 16. As a musician and fellow…

Launching at Dumbarton Pier
I work a couple of miles from the Dumbarton Pier in SF Bay Area. While walking at lunch yesterday I…
  Recent forum topics: 
Hoffman's High Hemologin Values
Does any of our Scandinavian friends know about Christian Hoffman being recently banned from racing for…

Steel bolts and nuts for Ultima…
The now discontinued Jackson Ultima Matrix mounts (for removable figure skating blade runners) held the…

Stockholm-Falun scoring system…
Kowalczyk overcame Majdic to win the overall WC title because she got the 200 bonus points for the…

Worn Rotefella Boots
Dear All, just back from an excellent trip to Norway. One problem, in heavy snow, very difficult to…
  Recent forum comments:
RE: Roller Derby Jerseys; Mexico…
Visit our Roller Derby Section for some outstanding unique jerseys www.oldjerseys.com

RE: calculators
On Mar 21, 5:35pm, ryanonthebeach <ryanonthebe...@gma­il.com> wrote: Sorry, I guess the…

RE: Season opener?
I sail Cass sometimes before jet ski season, but not sure if it's open yet. Maybe I'll see you there…

RE: Season opener?
On Mar 20, 8:24am, Zephyr <davedejo...@hotmai­l.com> wrote:

RE: Season opener?
On Mar 19, 7:07pm, garystanislaw...@gm­ail.com wrote: Hey thats great! hope to see you out…

RE: Re: Drugs -Cycling and Market…
Carl Douglas wrote: I think you might be jumping to illogical conclusions. I'm not opposed to…

RE: Hoffman's High Hemologin Values
On Mon, 23 Mar 2009 08:49:37 -0700 (PDT), ADK Skier <lgsumr@yahoo.com> wrote: Kikkan Randall…

RE: Hoffman's High Hemologin Values
I'll stay out of that one. Some February lab test results - in the midst of races - showed my…

RE: Hoffman's High Hemologin Values
ADK Skier wrote: The real problem wasn't a high hemo value, but the wrong ratio between what I…

RE: Hoffman's High Hemologin Values
On Mar 23, 3:11pm, Terje Mathisen <"terje.mathisen at tmsw.no"> wrote: Thanks Terje…
  Ìîäåðàòîð:
 Administrator

Keihin carb jetting question

Jono Davies 1 April 2005 07:11:36
 Hi folks,
I picked up a '97 Kawasaki 750 STS as a family runabout. It has the dual
CDK II-40s. All runs well at full throttle (which runs strong) but when I
drop to about 3/4 throttle after wide open, the engine bogs like it's
running lean.

I made several attempts of trying to adjust this out by richening the high
speed mixture screw, low speed mixture screw and then both, but couldn't
resolve the problem. So I rebuilt the carbs with Keihin factory rebuild
kits. The problem was still there, so I figured it must be a jetting issue.
When I looked at the sizing on the jets, there's a 40 and a 72. Looking
these up online, they are listed as both Low Speed jets. This seems rather
odd. I figured I needed to go larger on the "high speed", so I swapped the
72s for 80s. Now the midrange bogging problem has mostly disappeared, maybe
one in 20 tries she'll bog after the full throttle pass, but I note that my
high speed mixture screw has to be 2 turns out for things to run well, and
when I richen it even more (out to like 3 1/2 turns even) it doesn't make
any difference to the high speed running. So now I'm puzzled. Ideally I'd
want the mixture screw to be in the range of 1 to 2 turns out, but the fact
that opening it up further doesn't change anything makes me think the
jetting sizes are not well centered.

After all this, I removed the stock flame arrestor and installed Ocean Pro
Vortex flame arrestors, removed the choke butterflies and added primer
injection. Otherwise the engine is completely stock. The GPS shows I'm
topping out at 48 mph on smooth water on a good day, so it's running well
but I want it optimized.
Any suggestions or advice here? I'm thinking next to go up on the 40 jets
to maybe 46s. Anyone have the same setup I do and have the magic formula?

Thanks,
JD


Add comment
 

Add new comment

As:
Login:  Password:  
 
 
  
 
respect your talk pals, avoid using obscene language, typing entire messages in CAPS, posting buy/sell ads or violating netiquette or the RF Criminal Code..

GYXU > Kites, widsurfing, waterski > Keihin carb jetting question 1 April 2005 07:11:36
see also:
NASCAR-BUSCH: Milwaukee: Bobby East…
NASCAR-CUP: Michigan: Jeff Gordon…
NASCAR-CUP: Sears Point: Round 16…
pass tests:
see also:
http://demish.gyxu.com/i/temp/2/128...
...
...
  Copyright © 2001—2009 GYXU
Idea: Miñhael Monashev
See Help and FAQ in the community support.gyxu.com.
Write in the community about the bugs you have noticedbugs.gyxu.com.
Write your offers and comments in the communities suggest.gyxu.com.
Information for parents.
Write us at:
If you would like to report an abuse of our service, such as a spam message, please .