1976 YAMAHA RD400 Custom

Discussion in 'Some Assembly Required' started by Fast Idle, Feb 9, 2019.

  1. Fast Idle

    Fast Idle Since the Sixties Supporter

    Joined:
    Nov 9, 2012
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    2,395
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    The Great Land
    Time to launch the build for this 1976 RD400C.
    Another CL find that's just begging to make a return to the streets!
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    #1
    bultacobill, RD400-AG, rlkat and 27 others like this.
  2. budsboy

    budsboy I crashed the swing too. Supporter

    Joined:
    May 31, 2004
    Oddometer:
    799
    Location:
    The land of the wind chill factor
    I'm in!!
    #2
    Fast Idle likes this.
  3. villageidiot

    villageidiot Long timer Supporter

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    Apr 29, 2010
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    10,938
    Location:
    Orange County, CA
    Let’s see it. I assume by now it’s half done!
    #3
  4. motocopter

    motocopter ˙˙˙ƃuᴉɥɔɹɐǝS

    Joined:
    Oct 5, 2012
    Oddometer:
    2,966
    Location:
    North mid-TN & North mid-AL
    Definitely in since previously owning a '77 and a '79!
    #4
    Fast Idle likes this.
  5. BillUA

    BillUA Las Vegas, NV

    Joined:
    Mar 24, 2013
    Oddometer:
    636
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    Las Vegas Nevada
    in! Really enjoy your builds.
    #5
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  6. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Nov 9, 2012
    Oddometer:
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    The Great Land
    Just put it on the lift today. Pretty complete bike but it wasn't stored very well.
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    Just some minor road rash here and there, nothing real bad.
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    The mufflers aren't rashed at all, just some rust.
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    But it's obviously spent too much time out in the weather. I'd say it's in just "fair" condition.
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    #6
  7. Fast Idle

    Fast Idle Since the Sixties Supporter

    Joined:
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    Oddometer:
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    The vital signs are quite good.
    The transmission oil looked good and no evidence of water.
    Both cylinders have 120 for compression. Pistons look good for what can be seen through the plug holes and the plug hole threads look good. Carburetor slides move freely.
    Oil tank almost full.
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    Gas tank is rust free inside! And only some small dents.
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    Less than 8K on the clock so hopefully it was parked for some non major issue.
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    #7
  8. AK650

    AK650 Long timer Supporter

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    Jun 26, 2013
    Oddometer:
    1,046
    Location:
    Alaska
    About damn time! :D
    #8
    Fast Idle likes this.
  9. baldman1

    baldman1 Long timer

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    Jan 18, 2013
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    1,739
    Nice, I'm looking for one to do myself. Everyone wants stupid money for them no matter the condition.
    #9
    manic1 and Fast Idle like this.
  10. Fast Idle

    Fast Idle Since the Sixties Supporter

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    I'm a slacker, I know.:photog
    #10
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  11. Vince

    Vince Been here awhile

    Joined:
    Oct 1, 2006
    Oddometer:
    932
    I had a chocolate brown 1975 250. That dip stick on the oil tank takes me back. I owned the bike for a year and while watching the mechanic do a service I see him pull it out. I thought it was a helmet hook to lock your helmet to the bike. Who knew. I started reading owners manuals after that.
    #11
  12. Wildebeest90210

    Wildebeest90210 Long timer Supporter

    Joined:
    May 24, 2013
    Oddometer:
    2,903
    Excellent, this will help me through the winter. Of course you know you must have these, it's the law.....:pope

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    #12
    fire88dog, Bultaco206, Kamala and 5 others like this.
  13. Beezer

    Beezer Long timer Supporter

    Joined:
    Oct 26, 2004
    Oddometer:
    9,170
    Location:
    Anchorage, formerly Spenard (hub of the universe)
    ya piss me off pal.... ya beat me to that bike by about 15 minutes apparently. now, it's back... well, let me be a nice guy (again) and offer to take it off your hands before it becomes the money sucking pit of despair that it threatens to be. yep, what are friends for? I'll relieve you of all the trouble this pile will cost. in the end, its better all around for all. 'm right down the road... no worries, thank me later.
    #13
    manic1, OldGypsy, AK650 and 2 others like this.
  14. Fr8dog61

    Fr8dog61 Been here awhile

    Joined:
    Aug 15, 2016
    Oddometer:
    305
    Location:
    Lake Barkley
    Thanks for the link! Saves me hunting for the next build (although ALWAYS worth the effort!) :thumb
    #14
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  15. Fast Idle

    Fast Idle Since the Sixties Supporter

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    The rear caliper is missing. Probably seized up and was removed just so the bike would roll.
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    The front one is definitely seized and the pads were pulled. It's going to need all new brakes including rotors.
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    The dust seals are turning to dust:photog
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    Been awhile since I've found an old bike like this that didn't have any rash on the headlight ring. This one is near perfect.
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    #15
    JagLite and nuggets like this.
  16. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Still not exactly sure which way this build is headed but it's time to start tearing it down to the basic components.
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    Don't really see any of these parts going back on.
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    #16
  17. villageidiot

    villageidiot Long timer Supporter

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    Flat sides, boost bottles, gold top heads, carbon fiber reeds, some tune pipes.

    Those 18” front and rear?

    Dunlop k180 in 130/80-18

    K&N #10 bend bars?

    Please please 2 expansion chambers coming out the right side low.
    #17
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  18. Fast Idle

    Fast Idle Since the Sixties Supporter

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    The pile just keeps getting bigger.
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    There's just something cool about it with all that stuff removed.
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    Now I can sit back, have a couple beers and think about it.
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    #18
  19. JimVonBaden

    JimVonBaden "Cool" Aid! Supporter

    Joined:
    Feb 11, 2005
    Oddometer:
    85,359
    Location:
    Alexandria, VA
    Damn, are you sure you want to make it a resto mod? It looks very good for a full resto!
    #19
  20. fast1075

    fast1075 Not a Lemming Supporter

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    Dec 28, 2013
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    Location:
    Flaw'da
    I almost bought one of those way back when, but the wheels put me off. But these wheels aren't as ugly as RZ wheels. Nearly every "custom" I have done end up with 3 spoke Suzuki wheels. The engine is a beauty, and the frame has great symmetry.
    #20
    Fast Idle likes this.