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  1. yamaridersd

    For Sale - 1977 xs400 chain guard

    Asking $20 it’s been painted but has no dents and is straight!
  2. yamaridersd

    For Sale - 1977 XS400 carburetors

    Complete bs34 carburetors asking $140.
  3. yamaridersd

    For Sale - 77 Xs400D $2,500

    Selling my 77 xs400D $2,500 obo Lots of new parts! Runs great but does have an idle issue! 13,000 miles. I repainted the frame, built a custom seat and side panels. The tank is off a 1981 xs400 (4.5 gal). Lots of new parts!! New; points, condenser, coils, plug wires, plug caps, plugs, handlebar...
  4. yamaridersd

    Going back to Tuning the SWR carbs

    I’ve given up on the swap to fuel injection... way to much money and work!!!! So I’ve decided to stick with these SWR... “Sun World Racing” carburetors. So far I’ve had no luck getting them to idle but, top end..... I can only describe as “MORE THAN FUN!!!!!!!” But........ On (cold) startup...
  5. yamaridersd

    77 xs400 SWR carburetors

    has anyone here done the carburetor swap to the MIkesXs SWR (Sunworld Racing) 32mm? I’ve recently swapped mine and am having some trouble tuning them. Has anyone got them to run??
  6. yamaridersd

    Xs400 auto advance

    my 77 xs400 is having some idle issues!! I cleaned and rebuilt the carbs. Got new points, condenser, coils, plug wires and plugs. Did a static time and synced the carbs. Everything was running perfect until a couple weeks ago!! I was out on a ride and the ide started staying high!! I figured it...
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