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80 special fuel cap screws.

Discussion in 'The Garage' started by koyuga, Mar 28, 2018.

  1. koyuga

    koyuga XS650 Enthusiast

    Need the 3 small Phillips head screws that hold the seal mount to cap spring.

    Anyone have a size or thread pitch.

  2. kshansen

    kshansen XS650 Guru Top Contributor

    Forgot to measure the diameter of the couple I took out, very small, but the ones I have are not screw threads so to speak but are a somewhat coarse thread self taping type screw. What I would call a "sheet metal" screw. Length under head is about 7 to 8 mm.

    If it was me I would take cap to hardware store and try a few screws till I found one that fit. Or it you have a motorcycle junk yard near you start looking there.
  3. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    I might try a computer fix it store or look inside an old desk top computer they tend to use a bunch of really fine screws about that size.
  4. xjwmx

    xjwmx It's just the unknown. Top Contributor

    You'll find them easily at any HW store (at least in the U.S.) , too big for comp store. But the length will probably be wrong. This is where a Dremel too with reinforced cutoff wheel is very useful. After cutting, file a very slight bevel around the end.

    Screw size and length is encoded into some Yamaha part numbers, which might help sometime.

    If you have a real good HW store nearby you can try this:

    Always save ALL your old parts.
  5. gggGary

    gggGary On the road of life I'm a speed bump. XS650.com Supporter Top Contributor

    I came up with 3mm by 7.5mm and they are a self tapping sheet metal screw.

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