CB desert sled

Discussion in 'Some Assembly Required' started by Luke, Sep 6, 2012.

  1. slowpoke69

    slowpoke69 Been here awhile

    Joined:
    Feb 2, 2010
    Oddometer:
    602
    Location:
    So. Jersey
    I have a new stator anyway, I was worried about how much heat the cover can take.

    Getting happy now that I found Cone engineering for parts to build a scrambler style exhaust. I was pulling my hair out trying to find bends and stuff. They have some cool pieces, like a flat 4 collector.

    Thanks for the advice.
  2. Ladybug0048

    Ladybug0048 Bug Sister

    Joined:
    Nov 6, 2005
    Oddometer:
    11,463
    Location:
    Spokane Valley, WA (the dry side of the mountains)
    Luke, what's happening with the CB? Anything?
  3. Luke

    Luke GPoET&P

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    Aug 25, 2004
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    4,248
    Location:
    Beaverton, OR

    Hi Ladybug!

    No, pretty much nothing. I'm catching up on all the stuff I neglected over the past year while I was building it. I did manage to run out of gas on the freeway, that was fun. Fortunately there was about a quart hiding in the bottom of the rotopaxes below the pickup tubes.

    Oh, and I've been indulging my Sailah Syndrome. :D
    [​IMG]

    Blaster 200 motor in a YZ125 chassis. This took a lot less time than the CB. So fast, in fact, that I finished* the project before thinking of another one to work on.


    *not done finished, first ride finished.
  4. Entrepre-neer

    Entrepre-neer Ultimate Tight A$$

    Joined:
    Mar 2, 2009
    Oddometer:
    424
    Location:
    SW Ohio
    That thing looks silly fun!!

    Build thread? or pics?
  5. TwinDuro

    TwinDuro Befuddled Adventurer

    Joined:
    Jun 10, 2007
    Oddometer:
    348
    Location:
    Pac Nor-Wet, WA
    :tb :raabia

    Awesome!
  6. Ladybug0048

    Ladybug0048 Bug Sister

    Joined:
    Nov 6, 2005
    Oddometer:
    11,463
    Location:
    Spokane Valley, WA (the dry side of the mountains)
    Now that's an interesting motorcycle. You'll have to tell us more about that.
  7. Luke

    Luke GPoET&P

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    Aug 25, 2004
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    I've intentionally not done a build thread on it. I didn't want the picure/posting/etc to distract from it. After the CB I just wanted to spend my free time out of the shop riding bikes, but this idea just got under my skin. So I'm getting it done as fast as I can, and getting a few rides in before the forest closes for the summer. I'll do a post build documentary thread, for sure, after things calm down.
  8. TwinDuro

    TwinDuro Befuddled Adventurer

    Joined:
    Jun 10, 2007
    Oddometer:
    348
    Location:
    Pac Nor-Wet, WA
    I love the YZ125/Blaster swap Luke... One of the bikes I really like is the the Yamaha WR200, which they only imported for a few years in the early '90s:

    [​IMG]

    Supposedly, the Blaster engine shares the bottom end with the WR200, as evidenced by the roughed-in water pump mounting/outlets on the Blaster's crank case. The main difference on the blaster engine being the air-cooled top-end, and lack of the funky electronic servo-operated power valve as on the WR.

    With that said, I dig your YZ Blaster. It's like a WR200, but with better suspension, lighter weight and way more character! :clap
  9. slowpoke69

    slowpoke69 Been here awhile

    Joined:
    Feb 2, 2010
    Oddometer:
    602
    Location:
    So. Jersey
    I've looked all over the internet and can't find the answer, can't find my book either.

    I finally got my new stator cover, couldn't get the old one out, wasn't paying $80 to have it done. I hit up bikebarn for one, $47 w/ shipping.

    Downside is I didn't take a picture before I unhooked the brushes, gotta stop denying the fact that I just can't remember all the crap I could when I was younger. Do you know if it matters which wire goes to which brush?:ear

    Thanks for any help, hope you're having good riding weather out there, stay safe.
  10. Luke

    Luke GPoET&P

    Joined:
    Aug 25, 2004
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    4,248
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    Beaverton, OR

    I don't think it matters much which wire is which, but I can check one of my stators if you like. Here's a random image from an ebay part which shows the white wire on the left/inside and black on the right/outside.
    [​IMG]
  11. Luke

    Luke GPoET&P

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    Minor happenings on the CB. I wore out the back tire, so it's time for new shoes. These should last a little longer, and I have another set of wheels with dirt tires on them anyway. I spent a fortune on tires for mexico, so now I'm using them. Rick's SL got one of the front tires, my Husky 250 got a set today, and the WR200 got the front mousse from the CB and the front tire that was going to go on the Husky.


    In addition to the tires, I did a little work on the CB's handling. At Hells Canyon, HellsAlien was asking me how it handled, I said I though it was working but needed a little help. He asked if I let go of the handle bars did it track straight? I had no idea.

    So I tried it. Sure enough, it pulls to the left. So I tried fixing it. First was changing the angle of the rear axle, using the cam snails. Mainly because this was easiest to do. It only made a tiny difference, even at a really extreme angle. Next up was the offset of the rear wheel. The swingarm is too wide for the rear hub, which makes this really easy. I swapped around some washers that were being used as spacers to move the wheel over about a quarter inch. This made a big difference, I'd guess the problem was about half as bad. Unfortunately I can't move the wheel over much more, and it's definitely not right, close to rubbing the swingarm and visibly off from the center of the motor. The only other thing is to move the front wheel, which is a lot harder. So I'll think about it for a while before doing anything drastic.


    [​IMG]

    [​IMG]
  12. edjo69

    edjo69 Been here awhile

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    Jul 28, 2005
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    261
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    Ft Collins
    Great thread, sometimes its nice to find a finished, or mostly finished build thread so you can read the whole story in a day or two and not have to wait for updates!!! Thanx for this great build thread, it also alowed me to find the Suby build thread that I am starting next, great stuff...Ed:1drink:1drink
  13. KenBB

    KenBB Adventurer

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    Jul 18, 2014
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    36
  14. sraber

    sraber Been here awhile

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    Jan 11, 2006
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    335
    Location:
    Los Angeles
    Luke, I am so inspired by your passion and skills. I spent two days reading this thread and the comradery of all the participants kept me riveted. Thank you all. :D
  15. big-boss

    big-boss Been here awhile

    Joined:
    Sep 22, 2005
    Oddometer:
    217
    Location:
    Death Valley Is Heaven
    If you have an 8ft light bulb around:
    Straighten up the bike.
    Hold the bulb along the back tires and shoot it to the front.

    This is an old quick and dirty trick to find the problem- get you started and only takes a second to do.
  16. Scott_PDX

    Scott_PDX Leisure Engineer

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    Oct 18, 2010
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    3,868
    Location:
    Portland...the newer one on the left side.
    Nice tip, but I think Luke had a year since that post to figure it out. :D
  17. Luke

    Luke GPoET&P

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    I have had a year. And I'm ashamed to admit that I haven't done anything to the bike since.


    Well, not anything constructive, anyway. I did ride it in the Desert 100 again, destroying the mufflers and points cover. But I got a t-shirt, that's a good trade.

    [​IMG]