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  1. Replies
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    Re: compression issue on new (group k) rebuild

    If you are getting similar compression numbers between the two cylinders I am going to say you do not have a blown head gasket. Did Group-K supply head and base gaskets or recommend what thickness...
  2. Thread: 750 temp

    by mcn6
    Replies
    15
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    307

    Re: 750 temp

    Take it back to where you ride and back it in to the water leaving it tied down to the trailer. Start the motor to load the pump and remove any cooling lines you have coming from the head. Bring rpm...
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    Re: compression issue on new (group k) rebuild

    How does it run, you should be seeing a substantial performance increase going from a stock engine to the Sleeper package. That being said, cranking psi numbers can and do vary quite a bit depending...
  4. Replies
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    208

    Re: 750 head CC info O stamp and D heads

    I have seen a bunch of them and that is definitely a thin casting "A" head... Some of them have nothing stamped and some have a 0. Another way of identifying an "A" casting is that they are the only...
  5. Thread: Water in Crank

    by mcn6
    Replies
    1
    Views
    124

    Re: Water in Crank

    Define a "good amount of milky brown water"? If there is any sign of water coming from the bottom end and it has been sitting in there for any length of time it is a problem! If there is any sign of...
  6. Replies
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    208

    Re: 750 head CC info O stamp and D heads

    The head from the 1992 SS is an "A" casting.
  7. Thread: 750 temp

    by mcn6
    Replies
    15
    Views
    307

    Re: 750 temp

    All that I have checked have been between 130 and 165 degrees exiting the head.
  8. Replies
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    3,309

    Re: 750 kawasaki drive coupler removal

    Any lithium compound grease will work. Most automotive wheel bearing greases are lithium base.
  9. Re: Flywheel Need to be Removed to Split Crankcase? 750sx

    :hail::You_Rock_
  10. Thread: Hooker 10/16

    by mcn6
    Replies
    8
    Views
    253

    Re: Hooker 10/16

    I am assuming all have stock X-2 nozzle assemblies? And what is max rpm with the impellers?

    X-2 Pumps are a pita to remove and re-seal... However, how the pump is tuned often makes a big...
  11. Re: Flywheel Need to be Removed to Split Crankcase? 750sx

    Since the crank is coming out anyway simply mount the rear crank web in a vise, heat the drive coupler to soften the Loctite and remove the coupler.
  12. Replies
    2
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    228

    Re: Checking timing on 650sx?

    Front cover stays on. Use the site hole in the top of the front cover to view the timing mark on the flywheel and follow the ignition timing procedure as outlined in the service manual.
  13. Replies
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    492

    Re: 1990 550SX Crank Seal Question

    There is only one way the seals can go. Assuming they are oriented correctly per the diagram, the seals and metal ring have to fit in their respective grooves in the crankcase... That's it.

    Or...
  14. Replies
    10
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    492

    Re: 1990 550SX Crank Seal Question

    549352
  15. Re: 1998 yamaha 1200 waveraider service manual///cooling hose diagram

    Here is a free down load of the GP760/GP1200 service manual.

    http://www.mediafire.com/file/y3ydnyt34jr/Yamaha+Service+Manual+GP760+%26+GP1200+1997+-+1998.pdf
  16. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    Mucho Garcias bandit. Main jets: https://www.jetsrus.com/a_jets_by_carburetor_type/jets_keihin_N424-36_main.html
    Pilot jets:...
  17. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    Oh its true alright! I have been collecting old scuba tanks and variable pitch impellers for a while now...
  18. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    I think what Mr. X-2 is saying refers to the high speed jet (main jet) only, usually best to have high speed needle between .75 and 1.25 turns out. Basically, use your high speed needle setting to...
  19. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    That's what I was saying. There are a bunch of take offs from 95-96 twin carb 750's out there... If you have developed something for them that works and could be easily tuned for varying parameters...
  20. Thread: Body Beach Rides.

    by mcn6
    Replies
    35
    Views
    11,725

    Re: Body Beach Rides.

    Using the "go back" feature on his time machine maybe?
  21. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    You agree with B.S. Bill that a single 44 SBN performs "mediocre" compared to a single Keihin on similarly modified intake assemblies? How about dual Keihin's against dual BN40/38 I-bodies in similar...
  22. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    Nurse!! He is out of bed and off his meds again!!!

    Carry on...
  23. Replies
    174
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    17,362

    Re: Jetting Guru's! Dual 3 jet Keihin CDK2 40's help!

    Classic B.S. Bill post! Solve a problem that doesn't even exist, all the while baffling em with bullsheet.

    Carry on...
  24. Replies
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    2,103

    Re: Deadbeat Seller Green95LX

    :grouphug:
  25. Replies
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    1,685

    Re: How to get more torque

    Do the compression bump first, especially if you have a stock "A" or "B" casting head. PWI requires installation of a control unit, solenoid, spray bar and a suitable area near the exhaust...
  26. Replies
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    516

    Re: JS550 SBN 44,, carb conversion questions

    Post a pic of your current set-up including flame arrestor and open up the metering side of your carburetor and post your current jets sizes as well as needle/seat and spring. Then read this as many...
  27. Replies
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    1,685

    Re: How to get more torque

    All good information in this thread... Compression increases produce almost all torque so probably want to start with what bandit mentioned. If you are running the stock "A" casting head that came...
  28. Replies
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    Re: 750sxi Am I missing out on some h.p.?????

    At full throttle the Mikuni specification is .5mm (.020"). Any less clearance and the throttle plate goes past vertical and begins restricting air flow.
  29. Re: ALERT!! Advent Ignitions for Kawasaki 550/650 engines!!

    Yup! Going to come in real handy as the 550 Advents are designed similar to the original 750 Advents in that they come with a curve set, simply pick the timing curve appropriate for your fuel... At...
  30. Replies
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    285

    Re: 550SX Cylinder Head displacement

    They vary a little due to their being cast instead of machined domes. That being said, the reed domes I have measured have been between 25.4 cc and 25.9 cc.
  31. Replies
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    Re: Benefits of lengthening stock 650sx pipe

    uuhhh! What he said...
  32. Replies
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    Re: ADA making a 550sx reed motor head

    Stock 550 reed dome volume (with a head gasket) is the equivalent of a 26.5cc o-ring dome so they will work very well. Just like all ADA stuff...

    24cc domes for 91 octane pump gas
    23cc domes for...
  33. Replies
    4
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    423

    Re: 1994 750sx head upgrade

    Going from an A casting head to a C casting reduces trapped volume by about 3.5cc in each cylinder so you should see a fairly significant increase in bottom end and midrange performance. Basically,...
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    Re: Some jerk is on the roof...

    Well... Lets see some pup pics?
  35. Replies
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    Re: Some jerk is on the roof...

    Not gonna make it this year Bruce. She overswept… :ugh:
  36. Re: WTB Small Pin #20 Casting Kawasaki 750 Cylinder

    Thanks Ben, but looks like I found one?? If it doesn't work out I will pm you for pics and price.
  37. Re: WTB Small Pin #20 Casting Kawasaki 750 Cylinder

    Thanks Bionic, at this point customer really wants a #20, that may change if one isn't available though??? Thanks for checking.
  38. WTB Small Pin #20 Casting Kawasaki 750 Cylinder

    Looking for a #20 (no numbers) casting cylinder for a customer. Cylinder needs to be in decent cosmetic condition with decent OE paint, needs to be completely stock (no porting) and at stock 80mm...
  39. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    Unfortunately, I cannot read the pdf for you, so we still have a slight problem don't we restosud? I know that I have repeatedly explained this to you and it may sound complicated at first, but......
  40. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    I link this in post #52: http://dragonfly75.com/motorbike/2StrokeDesign.pdf

    Restosud then brilliantly responds in post #59 with: "Mr blair's treatises only approach engine efficiency,noise and...
  41. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    Real nice snatch. Another magazine article... And from 1978 testing castor oil no less??? You guys gotta see this one http://www.bridgestonemotorcycle.com/index2.html

    You really scraped the...
  42. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    If you are leaving everything completely stock just pre-mix 40:1 using petroleum base or synthetic blend oils and 50:1 with full synthetic oils. With a stock boat (if you even have to do anything at...
  43. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    Same old sheet from you... I don't see anything about oil/fuel ratio in relation to HP in your wiki link snatch? Can you post up dyno sheets or at least provide some indication of the HP increase...
  44. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    ok????? Calm down bird, is there an emergency contact person we can call for you?
  45. Re: Tips Prepping for Stock Class with and SXR800 -Midwest Riders

    Sorry, I didn't realize you were such a delicate flower restosud... You and snatch come out talking smack then start crying like little girls over a little friendly trash talk. There will be no...
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