Bob's 4 Cycle
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Forum: Open/Limited 4 Cycle

  1. wtb animal open

    Started by Dane, 03-11-2017 01:27 PM
    • Replies: 7
    • Views: 500
    05-22-2017, 10:20 PM Go to last post
  2. 28-30 true hp

    Started by Ikartrce, 05-09-2017 07:38 PM
    • Replies: 3
    • Views: 278
    05-22-2017, 09:54 AM Go to last post
  3. Tillotson tuning help

    Started by spincycle, 04-30-2017 12:14 PM
    2 Pages
    1 2
    • Replies: 33
    • Views: 1,006
    05-22-2017, 06:39 AM Go to last post
  4. 14.5 cu in bz for sale

    Started by blockzilla, 03-22-2017 08:38 AM
    • Replies: 2
    • Views: 486
    05-14-2017, 10:04 AM Go to last post
  5. 1 inch clutch for pred 420

    Started by foreverfaster, 04-20-2017 10:10 AM
    • Replies: 3
    • Views: 219
    05-09-2017, 08:16 PM Go to last post
  6. Alvin Fox

    Started by drtracr, 04-07-2017 04:18 PM
    • Replies: 3
    • Views: 380
    05-09-2017, 07:30 PM Go to last post
  7. 390 gx hona motor

    Started by oldloco, 05-04-2017 03:00 AM
    • Replies: 0
    • Views: 158
    05-04-2017, 03:00 AM Go to last post
  8. stock 450 crf head

    Started by oldloco, 04-14-2017 05:12 PM
    • Replies: 0
    • Views: 121
    04-14-2017, 05:12 PM Go to last post
  9. gx 390 methanol on gx200

    Started by theowl, 04-06-2017 08:58 PM
    • Replies: 4
    • Views: 249
    04-07-2017, 09:21 AM Go to last post
  10. Tecumseh Star Parts

    Started by cooter0708, 01-11-2017 11:40 PM
    • Replies: 19
    • Views: 1,096
    04-04-2017, 11:47 AM Go to last post
  11. Briggs 420 CC engine

    Started by yalipito, 04-01-2017 06:13 PM
    • Replies: 0
    • Views: 229
    04-01-2017, 06:13 PM Go to last post
  12. which 420 pred and why

    Started by foreverfaster, 03-17-2017 12:32 PM
    • Replies: 1
    • Views: 302
    03-18-2017, 07:58 PM Go to last post
  13. What is this carb?

    Started by times2, 03-14-2017 07:23 PM
    • Replies: 7
    • Views: 398
    03-15-2017, 09:36 AM Go to last post
  14. WKA open Bz1

    Started by stevevaughn31, 02-15-2017 07:40 PM
    • Replies: 4
    • Views: 594
    03-13-2017, 06:25 PM Go to last post
  15. Compression.......

    Started by PD Engines, 02-15-2017 04:53 PM
    • Replies: 8
    • Views: 824
    03-03-2017, 05:45 PM Go to last post
  16. Muffler for jawa engine

    Started by eddie torez, 02-18-2017 03:28 PM
    • Replies: 2
    • Views: 260
    02-18-2017, 06:46 PM Go to last post
  17. Big O mod winner

    Started by stevevaughn31, 08-07-2016 04:56 PM
    • Replies: 25
    • Views: 3,141
    02-15-2017, 04:43 PM Go to last post
  18. Stock appearing animal carb

    Started by 00fatcat, 02-06-2017 07:56 AM
    • Replies: 0
    • Views: 262
    02-06-2017, 07:56 AM Go to last post
  19. Tillotson Slide Carburetor Conversion

    Started by Jimmy Morgan, 01-07-2017 01:07 PM
    • Replies: 9
    • Views: 855
    02-01-2017, 10:35 PM Go to last post
  20. Oversize Flathead Exhaust Seat

    Started by Halfbreed33, 01-30-2017 09:40 PM
    • Replies: 3
    • Views: 326
    02-01-2017, 09:48 AM Go to last post
  21. ISO Blockzilla Bz3 Block

    Started by stevevaughn31, 01-24-2017 07:35 PM
    • Replies: 14
    • Views: 647
    01-31-2017, 09:13 PM Go to last post
  22. Looking for damaged Blockzilla 3

    Started by cubcadet70, 01-25-2017 01:21 PM
    • Replies: 1
    • Views: 325
    01-28-2017, 11:48 PM Go to last post
  23. Clutch / sprocket / gear advice needed

    Started by Compu-kart, 11-06-2016 06:54 AM
    • Replies: 17
    • Views: 886
    01-16-2017, 11:50 AM Go to last post
  24. 460 cc

    Started by MOONSHINEKARTS, 01-13-2017 04:09 PM
    • Replies: 1
    • Views: 521
    01-15-2017, 10:14 AM Go to last post
  25. Best limited pipe with a muffler?

    Started by meracer9, 01-11-2017 08:55 AM
    • Replies: 0
    • Views: 306
    01-11-2017, 08:55 AM Go to last post
  26. Looking for mx450 engine

    Started by Compu-kart, 01-01-2017 10:31 PM
    • Replies: 2
    • Views: 506
    01-03-2017, 03:18 PM Go to last post
  27. Stock appearing briggs flathead

    Started by bkskart, 01-02-2017 04:16 PM
    • Replies: 1
    • Views: 449
    01-02-2017, 04:54 PM Go to last post
  28. 390 intake wanted

    Started by oldloco, 01-01-2017 02:55 PM
    • Replies: 7
    • Views: 349
    01-02-2017, 07:57 AM Go to last post
  29. direct drive/ Remove tranny 500 need help

    Started by rowdyracer79, 12-30-2016 09:10 AM
    • Replies: 0
    • Views: 261
    12-30-2016, 09:10 AM Go to last post
  30. 342 block

    Started by TN721, 12-05-2016 08:10 PM
    • Replies: 7
    • Views: 598
    12-27-2016, 11:02 AM Go to last post

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