Dynoverks
Page 2 of 7 FirstFirst 1234 ... LastLast
Results 11 to 20 of 64
  1. #11
    n00bie


    Bike
    KZ1100 A1 Shaft 1981
    Join Date
    Oct 2007
    Location
    Queensland
    Posts
    60

    Default

    Will give that site a go to get the gen on the Jet Needle.
    One thing I do want is new carb starter plunger dust caps 16012-1010 but it seems the only supply is from the states and even then they are for the XS650's, still looking and not really prepared to pay $40 for a couple of rubber grommets.

    The main reason I want this thing to go again is the incredible silly arsed grin it used to leave on my face... not bad for an old relic.

  2. #12
    Really Full Of It


    Bike
    The Black Pearl
    Join Date
    Jun 2005
    Location
    Anarchy Road
    Posts
    2,251
    My Mood
    Twisted

    Default

    try Jeff at Z1 Enterprises for the carbie parts......he stocks a lot of bits for old Zeddies.......also Redline Cycles in the US is a good source of bits'n'pieces....


    ".......its that rat circus out there......I'm beginning to enjoy it........"

    ZEDQUARTERS ~ Service & Tune ~ Vintage Japanese Motorcycles ~ Kawasaki Specialist

  3. #13
    I'm Getting There


    Join Date
    Mar 2008
    Location
    Mandurah W.A.
    Posts
    778

    Default

    Here's some info from my files 5CX29 is correct for Z1100A1/A2 81/82, bare in mind different markets use different jets/needles etc.. and in some cases different carbs. Hope this helps.


    Stock UK Spec. Mikuni 34mm carburettors as fitted to the following Kawasaki (UK) models.
    Read L-R like this:
    Model, Cross Pilot & Plug(Yes or No), Main Jet, Pilot Jet, Jet Needle, Needle Jet, Main Air Jet, Pilot Air Jet
    GPz750R1, Yes, 110, 37.5, 4BE3, Y9, 250, 300
    Z750L3,4, Yes, 110, 37.5, 4BE3, Y9, 250, 300
    GPz750A, No, 110, 37.5, 4BC7, Y8, 250, 300
    Z1000K1,2, Yes, 122.5, 37.5, 5FL52, Y1, 85, 350
    Z1000J1,2, Yes, 127.5, 37.5, 5FLZ50, Y6, 85, 350
    Z1000J3, No, 117.5, 37.5, 5CF58, Y2, 85, 350
    Z1000R2, No, 127.5, 37.5, 5C48, Y4, 85, 350
    Z1100A1,2, Yes, 120, 37.5, 5GX29, Y1, 85, 350
    Z1100A3, No, 117.5, 37.5, 5CF58, Y2, 85, 350
    Z1100R1, No, 130/5, 37.5, 5B5, Y8, 85, 350
    Note: Numerical difference in main AIR jet size between the 750 and 1000/1100 carbs is huge whereas the difference in pilot AIR jets is much less.
    Note: All the different main jet, needle and needle jet combinations.
    Note: All have 37.5 Pilot Jets.
    Note: Z1100R1 cylinders 1&4 - 130, 2&3 - 135 - presumably an extra cooling consideration for the two inner cylinders?
    Note: All UK needles are 5 position adjustable (stock is No. 3 (middle) clip position)

  4. #14
    I'm Getting There


    Join Date
    Mar 2008
    Location
    Mandurah W.A.
    Posts
    778

    Default

    http://www.wgcarbs.com/

    This is a good site for info, but again diff markets diff bits. Is your workshop manual correct for your market bike, could it be an import.

  5. #15
    I'm Getting There


    Join Date
    Mar 2008
    Location
    Mandurah W.A.
    Posts
    778

    Default

    Crystal, just read your earlier posting and missed it, your bike is an import- (USA spec) KZ1100A1, in that case this should be correct, but again carbs could of being swapped over by previous owner to UK spec. (as Aussie Delivered bikes are usually closer to UK spec then USA.).

    34mm Mikuni Carbs.
    Main Jet 120, Needle Jet Y-1, Jet Needle 4CG15, Pilot Jet 37.5, Main Air Jet 85, Pilot Air Jet 35

    Now your confused,

  6. #16
    n00bie


    Bike
    1984Gpz750 turbo 2000 zx9r trackbike
    Join Date
    Sep 2010
    Location
    Darwin NT
    Posts
    11

    Default

    Patchs on the diaphrams will make the engine run like crap, you cannot balance the carbs to suit the differing amounts of patchs on them. They will rise on vacuum differently. Been there, done that on a Gixxer1100, and the bike would not run right until I junked them[patchs on all diaphrams.....useless] for a set of Mikuni 36's off a '96 GSR750, and it went like a cutcat with the 750 stock jetting.
    Good sets of rebuilt carbs come up on ebay, keep an eye out..........

    Good luck with your rebuild!

  7. #17
    n00bie


    Bike
    KZ1100 A1 Shaft 1981
    Join Date
    Oct 2007
    Location
    Queensland
    Posts
    60

    Default

    900FOUR - As far as I know it is an Aussie sourced KZ1100 A1 Shaft 1981. It has a 07/81 ADR compliance plate (Did they bring them into Aus, the plate looks factory) with Z1100A stamped on it and KZT10A-005897. The wiring, what is left of it, is Export spec and it doesn't have the emmission mods the US models have and as far as the carbs go, the needle jet is graduated and the pilot jets are not capped/bunged which all points to export.
    My confusion with the Jet needle is that the book shows the export version having a 4CG15 as you mentioned, but it has a UK spec 5GX29 fitted. Considering it has 4-1's fitted at some time in the past I was wondering if that was the reason for the change. The more I look into this bike the more I think it has those jets because they were available at the time or were actually standard to that bike.

    BenzNT - Thanks for the info it will save me some heartache later on trying to figure out what is going wrong.

    I will keep posting on this thread as things come up, but as I said the other day the next big check is the compression test. Fingers crossed on that one.

    Couple of pics, first the wiring section about a foot from the headlight, this is what I found when I removed the sheath.
    Second, ignore the grass under the front wheel... grass grows quick in the north

    Shiny side up folks..
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	gen 006.jpg 
Views:	81 
Size:	47.1 KB 
ID:	13956   Click image for larger version. 

Name:	gen 007.jpg 
Views:	77 
Size:	56.0 KB 
ID:	13955  

  8. #18
    Really Full Of It


    Bike
    The Black Pearl
    Join Date
    Jun 2005
    Location
    Anarchy Road
    Posts
    2,251
    My Mood
    Twisted

    Default

    that wiring sure has seen better days..... a good idea to replace all that ...

    With an aussie ADR plate, I would not think that this bike is an imported model. Plenty of Z1100's were sold here back in the 80's, they were a popular bike for long-distance touring. Most old kwakkas from the 70's and 80's were either US/Canadian models, or UK/Euro/rest of the world models. Your standard jetting specs should always replicate the UK models, not US models. US-specific jetting is based on additional emission controls that the rest of us did not have to worry about back then.....

    Generally, the only jets you need to worry about changing with a 4-1 exhaust, is upping the main jet a size or 2, and richening the mid-range by lifting the needle 1 or 2 clip positions. Pilot jets can almost always be left alone, and it is rare that you would need to put a richer needle jet into any OEM carbie.

    That WiredGeorge website has lots of good tips for tuning carbies - good luck with it !


    ".......its that rat circus out there......I'm beginning to enjoy it........"

    ZEDQUARTERS ~ Service & Tune ~ Vintage Japanese Motorcycles ~ Kawasaki Specialist

  9. #19
    n00bie


    Bike
    KZ1100 A1 Shaft 1981
    Join Date
    Oct 2007
    Location
    Queensland
    Posts
    60

    Default

    Yea, some good stuff on WiredGeorge. Also some good tips on at iwt.com
    What you said confirms what 900FOUR was saying, or at least what I think they were trying to say. I got confused with the jet needle number shown as US export when I should have been looking at the UK spec.

    Having said that, it still doesn't explain why the Jet Needle circlip would be on the second slot from the top of the needle. Both Wired George and itw show this position as leaner than factory set so I have no idea why that was done... even using an air correction table it isn't the jet needle that needs moving. If anything it should go down the shaft to 3 (standard) or 4 to compensate for the 4-1's but... and a big but, when it was running it pulled like a trooper from 1/4 throttle to 3/4 and never showed signs of running lean so that will be something to keep an eye on for the final tune.

    Everything I have read so far mirrors your comments... up a size in mains, leave the pilot alone and adjust the jet needle if necessary.
    Still a long way off from a tune and really ppreciate everyones comment.
    End of the day I am just happy it fired up

  10. #20
    Really Full Of It


    Bike
    The Black Pearl
    Join Date
    Jun 2005
    Location
    Anarchy Road
    Posts
    2,251
    My Mood
    Twisted

    Default

    If the bike is running well in that rev-range....even with the clip in the 2nd position - I would probably leave it alone. 3rd position (middle) is generally the stock one, and yeh, to richen up the mid-range a bit, the clip is generally placed in the 4th position. As long as there are no signs of lean running - as is the case presently - it should be fine to stay as it is. It may just be that at some time in the past, the bike scored a tune-up where the clip was lifted one position ? If you are still running the stock airbox and a 4-1, that may explain this ......jetting is always dependant on a lot of factors, so there may be another reason...

    Keep an eye on the plug leads and especially the plug caps. These tend to get overlooked in any tune-up, and poor connections with plug-caps happen in these old bikes fairly often. New ones are not too exxy - worth dropping some coin on these I reckon.....

    Good to see that the old 1100 will be back on the road soon I guess ??


    ".......its that rat circus out there......I'm beginning to enjoy it........"

    ZEDQUARTERS ~ Service & Tune ~ Vintage Japanese Motorcycles ~ Kawasaki Specialist

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin® Version 4.1.12
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Extra Tabs by vBulletin Hispano
All times are GMT +10. The time now is 08:29 PM.
vBulletin 4.0 skin by CompleteVB
Your continued use of this forum constitutes your acceptance of the Forum Rules and Terms and Conditions.