Harry Klemm - GroupK
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Threads 1 to 30 of 761

Forum: Harry Klemm - GroupK

PWC advice, by Harry Klemm, Owner of GroupK, a professional aftermarket high performance Jetski shop

  1. About Racing CDIs

    Started by Group K, 03-16-2018 01:12 PM
    3 Pages •
    1 2 3
    1 Attachment(s)
    • Replies: 20
    • Views: 4,393
    fitzen101
    12-23-2018, 12:58 PM Go to last post

  2. Modded 61x Premix ratio?

    Started by boarder1, 09-19-2018 11:42 AM
    • Replies: 0
    • Views: 579
    boarder1
    09-19-2018, 11:42 AM Go to last post

  3. Why no yamaha twin pipes?

    Started by Quinc, 09-04-2018 05:22 PM
    • Replies: 7
    • Views: 935
    Quinc
    09-12-2018, 02:45 AM Go to last post

  4. Need help turning 750sx with dual 46mm

    Started by Judger, 09-05-2018 05:46 PM
    • Replies: 0
    • Views: 485
    Judger
    09-05-2018, 05:46 PM Go to last post

  5. 951 93 oct head

    Started by Chrisx88, 08-05-2018 12:17 PM
    • Replies: 0
    • Views: 695
    Chrisx88
    08-05-2018, 12:17 PM Go to last post

  6. Dual 44mm Carbs on Superjet

    Started by Doug997, 06-21-2014 03:47 PM
    2 Pages •
    1 2
    4 Attachment(s)
    • Replies: 15
    • Views: 9,131
    JSNate
    04-25-2018, 10:37 AM Go to last post

  7. Sxr 1500

    Started by Dano 7, 03-31-2018 11:36 PM
    • Replies: 1
    • Views: 1,026
    Group K
    04-02-2018, 12:24 PM Go to last post

  8. Tech Article Mikuni 44 Carburetors Part Technical .. Part Tragedy Part 2

    Started by Group K, 12-02-2017 11:31 AM
    • Replies: 4
    • Views: 2,172
    bored&stroked
    01-26-2018, 07:38 PM Go to last post

  9. Tech Article : Riblets and your PWC

    Started by Group K, 12-16-2017 03:23 PM
    • Replies: 3
    • Views: 1,646
    Grumpy Old Guy
    12-17-2017, 02:04 PM Go to last post

  10. Tech Article : 44Mikuni Carbs – Part Technical …Part Tragedy Part 1

    Started by Group K, 12-02-2017 11:29 AM
    • Replies: 4
    • Views: 1,499
    Kershawman
    12-13-2017, 12:47 AM Go to last post

  11. Tech Article : Kaw 650/750/800 Cooling Upgrade

    Started by Group K, 11-21-2017 11:42 AM
    3 Attachment(s)
    • Replies: 3
    • Views: 1,752
    Dano 7
    11-22-2017, 05:22 PM Go to last post

  12. Tech Article : About Kaw 440/550 Flywheels

    Started by Group K, 11-21-2017 11:44 AM
    2 Attachment(s)
    • Replies: 0
    • Views: 1,343
    Group K
    11-21-2017, 11:44 AM Go to last post

  13. I want a project I just need to know what it will be. KNOWLEDGE please.

    Started by vessels, 06-06-2017 06:08 PM
    • Replies: 2
    • Views: 3,114
    Group K
    11-08-2017, 01:12 PM Go to last post

  14. 750sxi pro Factory limited pipe

    Started by Corndog69, 10-19-2017 02:00 PM
    • Replies: 1
    • Views: 1,845
    Group K
    10-20-2017, 12:56 PM Go to last post

  15. 61x cylinder max bore, conflicting info on website

    Started by bored&stroked, 06-24-2016 05:10 PM
    • Replies: 5
    • Views: 3,158
    cusuhao8686
    10-14-2017, 09:48 AM Go to last post

  16. 1996 Sea Doo GTi 717cc motor

    Started by Cliff, 09-25-2017 01:52 AM
    • Replies: 2
    • Views: 1,695
    Group K
    10-11-2017, 12:15 PM Go to last post

  17. Any history on this ski?

    Started by 550Rush, 05-20-2017 11:59 PM
    1 Attachment(s)
    • Replies: 3
    • Views: 2,504
    550Rush
    05-21-2017, 09:32 PM Go to last post

  18. Search wiring diagram 800 SX-R with dc cdi

    Started by bounce7, 10-03-2008 11:58 AM
    • Replies: 3
    • Views: 3,536
    h2oskinut
    05-16-2017, 03:52 PM Go to last post

  19. Getting ahold of GroupK

    Started by twake, 02-13-2017 11:24 PM
    • Replies: 4
    • Views: 3,732
    twake
    04-14-2017, 10:50 AM Go to last post

  20. 550 cranks

    Started by Bob Gruen, 12-29-2016 10:48 AM
    • Replies: 0
    • Views: 2,575
    Bob Gruen
    12-29-2016, 10:48 AM Go to last post

  21. superjet rn handeling problems

    Started by timothy, 11-23-2016 01:22 AM
    • Replies: 5
    • Views: 3,360
    ACP
    11-26-2016, 09:01 PM Go to last post

  22. x2 exhaust hoses?

    Started by timothy, 11-21-2016 01:43 AM
    • Replies: 2
    • Views: 2,266
    x2crew
    11-21-2016, 03:08 AM Go to last post

  23. 99 Ultra pump shimming or rebuilding

    Started by Conkerbfd, 10-21-2016 01:48 PM
    • Replies: 0
    • Views: 2,303
    Conkerbfd
    10-21-2016, 01:48 PM Go to last post

  24. groupk650v2

    Started by timothy, 10-14-2016 03:33 AM
    4 Attachment(s)
    • Replies: 4
    • Views: 2,703
    timothy
    10-16-2016, 08:24 PM Go to last post

  25. tigershark avaibility

    Started by Goodchildren, 08-31-2016 09:09 PM
    • Replies: 4
    • Views: 3,104
    Group K
    10-11-2016, 12:01 PM Go to last post

  26. what spark plugs?

    Started by timothy, 09-25-2016 08:04 PM
    • Replies: 7
    • Views: 3,542
    TheJS440
    10-05-2016, 12:35 PM Go to last post

  27. 2008 SXR Better Fuel Economy?

    Started by smd, 08-23-2016 09:35 PM
    • Replies: 4
    • Views: 3,067
    Bionic racing
    08-31-2016, 11:30 AM Go to last post

  28. 750 porting options?

    Started by Conkerbfd, 08-28-2016 04:23 PM
    • Replies: 3
    • Views: 2,519
    Conkerbfd
    08-29-2016, 02:23 PM Go to last post

  29. Quick question - 650sx

    Started by silverado87, 05-09-2016 09:41 PM
    • Replies: 4
    • Views: 2,808
    silverado87
    08-24-2016, 08:34 AM Go to last post

  30. Can You Re-Cut My Replaceable 787 Domes?

    Started by Matt Braley, 06-24-2016 08:32 AM
    • Replies: 1
    • Views: 3,273
    Group K
    06-25-2016, 01:28 PM Go to last post
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