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The BIG bore 2 smoker thread

Discussion in '2 smokers' started by Rot Box, Jul 27, 2013.

  1. Rot Box

    Rot Box Been here awhile

    Joined:
    Oct 31, 2010
    Oddometer:
    392
    Location:
    Cape Coral, FL
    Lets say around 400cc+ any year make and model.

    What do you ride? Where do you ride it? What have you done to it? And the big question: Why do you need all that power?! :eek1
    #1
  2. Rot Box

    Rot Box Been here awhile

    Joined:
    Oct 31, 2010
    Oddometer:
    392
    Location:
    Cape Coral, FL
    Here's my 1984 Honda CR500R.

    Motor: 520cc (91mm) bore. Porting and head work by Eric Gorr. Lowered compression with major reshaping of the squish band. Decompression valve. Keihin PWK 39.5mm Air Striker. lightyears better than the stock time bomb/ping-king.

    Suspension: Re-sprung with Pro-Action valving with 87 CR cartridge forks. Lightyears better than the stock pogo sticks.

    Misc: Billet clamps, Scotts damper, Clarke 4.0 gal tank. classic gold wheels.

    There is no sound on earth more captivating than a big bore finner at wide open throttle--can't get enough!

    [​IMG]

    [​IMG]
    #2
  3. jar944

    jar944 Long timer

    Joined:
    Aug 2, 2010
    Oddometer:
    1,518
    Location:
    Warrenton
    Cr5/KTM hybrid.
    I use it for everything from single track to hillclimbs.
    [​IMG]

    As for why, climbing takes lots of HP, and the cr is cheaper than the my bigger ktms to maintain/build.
    [​IMG]
    #3
  4. dynodave

    dynodave Been here awhile

    Joined:
    Oct 23, 2007
    Oddometer:
    161
    #4
    Baja Perro and tjzondrz like this.
  5. 81cr450

    81cr450 Been here awhile

    Joined:
    Jul 28, 2011
    Oddometer:
    100
    Location:
    Piute ATV trails Utah , Dreaming of Baja
    [​IMG]

    I use hoops just like that on the back of my station wagon :D

    Damn sweet collection you've got there Sir
    #5
    dynodave, Baja Perro and Foot dragger like this.
  6. Enduronut357

    Enduronut357 Adventurer

    Joined:
    Jul 7, 2013
    Oddometer:
    36
    this is what i ride, though it needs work at the moment


    [​IMG]
    #6
    peter650 likes this.
  7. 305racer

    305racer Fossil Rocket Pilot

    Joined:
    Sep 29, 2007
    Oddometer:
    472
    Location:
    ST. AUGUSTINE ,FLORIDUH
    Guess after I save my milk money I know who I need to get in touch with to find a '79/'80 GS 400+:wink:
    #7
    dynodave likes this.
  8. dynodave

    dynodave Been here awhile

    Joined:
    Oct 23, 2007
    Oddometer:
    161
    Thank you.
    #8
  9. craydds

    craydds Long timer

    Joined:
    Aug 3, 2010
    Oddometer:
    1,180
    Location:
    Las Cruces, NM
    This is the bike I have been working on:
    [​IMG]

    It's a 1976 YZ400:
    [​IMG]

    Put the bike back together and have ridden it out in the desert. But have pulled the motor out again, going to rebuild the motor.
    #9
  10. Rockcat

    Rockcat LDA

    Joined:
    Oct 2, 2005
    Oddometer:
    382
    Location:
    Portland, OR
    [​IMG]

    I built this '70 CZ 360 sidepipe to race in the vintage races at Hollister Hills. It's on the first piston for a '73 CZ 400, so its no longer a 360. Last month I smoked a couple of young guys on 450F's on the HH TT track. They thought I was just a fast old guy, but they don't understand how much better the lower CG bikes turn. I've trail ridden a few times and the power of the old air hammer is impressive.
    #10
    Drwnite likes this.
  11. booniebasher

    booniebasher Been here awhile

    Joined:
    Dec 29, 2009
    Oddometer:
    712
    Sent from my SPH-L900 using Tapatalk 2
    #11
  12. booniebasher

    booniebasher Been here awhile

    Joined:
    Dec 29, 2009
    Oddometer:
    712
    I am very excited about cr500 I owned several in the past haven't had 1 for a while. I am super stoked.

    Sent from my SPH-L900 using Tapatalk 2
    #12
  13. zokalr13

    zokalr13 Been here awhile

    Joined:
    Nov 8, 2007
    Oddometer:
    431
    Location:
    K-TOWN B.C
    [​IMG]heres my 1991 CR500 thats getting a restoration [im waiting on top end parts] yeah,these big bore bikes spoil you- anything else just wont cut it im afraid....:D
    #13
    dynodave likes this.
  14. Rot Box

    Rot Box Been here awhile

    Joined:
    Oct 31, 2010
    Oddometer:
    392
    Location:
    Cape Coral, FL
    Great looking bikes everyone. I've said it before but I love that blue/yellow Maico dynodave. You don't see those very often--if ever in the states :bmwrider
    #14
    dynodave likes this.
  15. KustomizingKid

    KustomizingKid Been here awhile

    Joined:
    Nov 21, 2012
    Oddometer:
    827
    Location:
    Minneapolis
    I will buy a Cr500 or Kx500 for next summer... They just sound like too much fun :D
    #15
  16. dynodave

    dynodave Been here awhile

    Joined:
    Oct 23, 2007
    Oddometer:
    161
    Thanks Rot Box. I traded the `94 320 for an `81 GS490 in need of a full resto.

    Check these out. All big bores and all sold some time ago, along with some others. I had them all at the same time and could not get into my shop:

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
    #16
    JHG67 likes this.
  17. Rot Box

    Rot Box Been here awhile

    Joined:
    Oct 31, 2010
    Oddometer:
    392
    Location:
    Cape Coral, FL
    I'm not a Maico connoisseur by any stretch but I do know that GS490 is a very rare bird. Sounds like you made a good deal :deal

    Very nice bikes/pics btw!
    #17
    dynodave likes this.
  18. brunoramos

    brunoramos n00b

    Joined:
    Dec 18, 2012
    Oddometer:
    4
    Location:
    En el desierto!! - Chile
    Maybe isn't old but is a really big bore 2t

    [​IMG]
    #18
  19. brunoramos

    brunoramos n00b

    Joined:
    Dec 18, 2012
    Oddometer:
    4
    Location:
    En el desierto!! - Chile
    [​IMG]

    Is a Husqvarna WR360 9?...with 52HP !!!
    #19
  20. spinalator

    spinalator Adventurer

    Joined:
    Jun 15, 2008
    Oddometer:
    52
    Location:
    Northern Plains Canada
    Yamaha IT490. I had a few heroic get offs on that bike, I was not a very good rider in my teens, lol. I also recall it pinging and snorting more than my old 175.
    #20