California Brat Four Nine Zero

Discussion in 'Old's Cool' started by larryboy, Feb 1, 2011.

  1. larryboy

    larryboy Chopper Rider

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    Like I really need another project. :baldy


    My buddy Nixels gave me this 1978 CB550 rolling chassis that I was just planning to use the VIN and title for a different project, but after looking at it for a few months I decided that it needed to live on.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020110.jpg">


    First up? I need a powerplant. YZ490 for $300 from a Craigslist ad? Yeah, that'll work. :evil

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020108.jpg">


    Get her on the lift and start mocking up parts.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020113.jpg">


    Rip the 490 to shreds.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020111.jpg">

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020114.jpg">


    Something like that?

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020118.jpg">


    I don't like the puffy looking stenciled with spray paint Yammie seat. I dig out on old CR500 seat I have and fab some tabs.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020122.jpg">


    Yeah, that seat looks better. Fender, tail light and plate holder are final.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020120.jpg">


    Time to figure out the motor mounts.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020124.jpg">


    Need to get some supplies to build the motor mounts, so I put on some new grips and modded some old cafe mirrors to fit.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020125.jpg">


    Oh yeah, I have that K&N filter on the shelf that never got used...might fit this thing. Yup, that'll work.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020127.jpg">


    I ordered a few parts that were missing..rear brake pedal, speedometer cable and a cheap factory looking headlight. I've decided to fab a gas tank from scratch.

    The front caliper is missing, but my buddy Robert has one for me.


    Off to look for some stuff at the metal odds and ends store.


    Feel free to poke fun and suggest a wheelie bar or something.
    #1
  2. larryboy

    larryboy Chopper Rider

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    Back from the metal store, that stuff is expensive. :huh


    Yeah, that looks good. I don't have a TIG at home so the sheet is a little thicker than I wanted just so I can MIG it.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020128.jpg">


    I'll bend as much as possible to cut down on the welding.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020129.jpg">


    My goal is to ride this thing by the 14th..this month of this year. :rofl I've got parts coming for the Baja Bandit and I want this thing off the lift in two weeks. :deal

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020131.jpg">
    #2
  3. DaveRMS

    DaveRMS Long timer

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    Subscribed, Rob! That's a super-fun looking build.

    I'm also doing a CB project at the moment. It's a CB400F that I'm boring to 466 and putting an early R6 front-end on.

    http://forums.sohc4.net/index.php?topic=82531.0

    But I give mine a couple of months longer. It's currently 100% disassembled and mostly cleaned. I'm working on the machining for the front hub/brake at the moment. I hope to get the motor work started this week, too.

    Dave
    #3
  4. DaveRMS

    DaveRMS Long timer

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    BTW, the 490 swingarm would be a cool transplant. Too long I bet, and the travel would be way off. But cool nonetheless.

    Dave
    #4
  5. larryboy

    larryboy Chopper Rider

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    Cool project, Dave!!! That's funny that you're doing one too. My bud Robert, just cafe'd a 550 too.:huh


    Yeah, the 490 swingarm is really nice...I'm trying to keep this project super simple. Hopefully I can hang onto a YZ490 in a short wheel base bike.:lol3
    #5
  6. Nixels

    Nixels Face fears - live life

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    :loco

    :1drink

    :lol3

    If Steve at the museum saw what happened to his old 550 resto project he'd cry.

    Or maybe he'd laugh? :dunno

    As usual, you're taking your sweet time with this... :zilla

    I'd better get down to DMV and get the plates. :eek1
    #6
  7. Benjava

    Benjava ?

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    nice gas cap :1drink
    #7
  8. fishkens

    fishkens Long timer

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    I'm in. But I can't say for certain what I'm watching. Can't wait to find out. :D
    #8
  9. larryboy

    larryboy Chopper Rider

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    Holy crap, it was that Steve's bike? That's super funny. :lol3


    I WILL do a burnout video in two weeks!!! :deal
    #9
  10. larryboy

    larryboy Chopper Rider

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    Ok, fabbed up a top motor mount.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020132.jpg">


    After a trial fit I need to shorten it about one inch so I can rotate the engine to level out the carb.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020133.jpg">


    Oh yeah. :super

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020135.jpg">


    Looks like I might bring the height of the tank down, went a little tall to clear the pipe..ending up with more pipe clearance than I thought I'd have. Trying for about a five gallon tank.

    <img src="http://i8.photobucket.com/albums/a32/plunger-ears/CB490/P1020137.jpg">
    #10
  11. Dorzok

    Dorzok Long timer

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    DANG IT!! i don't need another build thread to follow.
    thanks a lot. i'm interested in how you're going to title that in Cali.
    :hmmmmm
    #11
  12. larryboy

    larryboy Chopper Rider

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    It's already titled. :deal


    Top of the tank is going to have be a lot lower, just ran some numbers on the size and I was over 9 gallons...waaay too much.:huh
    #12
  13. bk brkr baker

    bk brkr baker Long timer

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    The line between genious and madness is thin indeed.



    This will have less suspension than a TM400 with more power.


    Hang on!
    #13
  14. Velvet Elvis

    Velvet Elvis mild mannered adventurer

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    Super cool transformation. Does the front wheel clear the pipe at full compression?
    #14
  15. larryboy

    larryboy Chopper Rider

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    If it doesn't I'll hit it with the sledge hammer. :lol3
    #15
  16. Velvet Elvis

    Velvet Elvis mild mannered adventurer

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    That's my kind of engineering. :super
    #16
  17. jake28

    jake28 Riding to the horizon.

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    Subscribed. Rock on.
    #17
  18. oc_nightmare

    oc_nightmare Been here awhile

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    #18
  19. beechum1

    beechum1 Dandole Gas al Burro

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    in.
    #19
  20. larryboy

    larryboy Chopper Rider

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    I got my brake pedal in the mail today!! :clap I can figure out footpegs now!.

    I looked at tire to pipe clearance and I think I have enough room..we'll see.

    I should be able to finish the top motor mount and move on to the others tomorrow.

    I'm waiting for the speedometer cable before I put the gauge on.
    #20