XR250/400 Allen screw list



By changing the stock Honda fasteners to allen head ("hex" or "socket head cap screws"), you can do a few important trailside repairs carrying only two tiny allen keys. It's nice to be able to remove your seat and tank with one tiny wrench.

This is not a complete list of all the screws on the bike. It's just enough to remove your seat, tank, and carburetor float bowl.

If you want to just buy the kit, poke the Add to Cart button.


  • Get 3mm, 5mm (or 6mm) allen keys.
  • For example, it's easier to "beg for gas" if you have your tank already off the bike (don't ask me how I know).
  • Buy only top-quality allen keys.

    Carburetor float bowl

    qty:3, 4mmX16mm(L). Get 3 flat and 3 spring lock washers too. Maybe get a spare set.

    Compare the threads with your floatbowl screw to be sure they're the same before screwing them in!!

    (wrench size: 3mm)

    Fuel tank
    qty:2, 6mmX30mm(L). Get 2 flat washers and 2 lock washers. Maybe get a spare. On some XRs, the hole is deep enough for a 35mm screw but stock is 30mm.

    (wrench size: 5mm)
    Seat
    qty: 2, 8mmX25mm(L). Maybe get a spare.

    (wrench size: 5mm if round head, 6mm if standard cylindrical head)
    Get the 5mm head so a single 5mm allen key removes both seat and tank.
    Countershaft Sprocket guard
    '96 and newer XR250 '96 and newer XR400

    qty: 1, 6mmX22mm(L).

    qty:1, 6mmX16mm(L).

    qty: 1, 6mmX30mm(L).

    qty:1, 6mmX16mm(L).


    (wrench size: 5mm)
    Countershaft Sprocket retainer
    qty: 2, 6mmX10mm(L).

    (wrench size: 5mm)

    CycoActive has this complete kit in stock with all 5mm heads (hard to find 5mm head seatbolts) plus 3mm for carb, plus carb washers) $12. Includes hex wrenches.

    Includes all 'as above' for '96 and newer XR250 and 400

    XR250/400 Allen screw kit
    item# XR4allen:$12


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    (01/26/01)
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