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Thread: strange noise from my sx's front forks

  1. #1
    mikey's250sx's Avatar
    mikey's250sx is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2004
    Location
    lancaster, pa
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    417

    strange noise from my sx's front forks

    just re-added front brakes and when i grab them if i'm haulin a** my front end immediately drops 2-3" and i hear an audible clunk that i can also feel. seems like there is no oil in the fork legs. is this possible? what else should i look for? it's definitely in the forks somehow not in the steering head. that is still tight. i may get out after the nascar race today if it stops raining.(no garage)
    thanks

  2. #2
    Join Date
    Jan 2005
    Location
    south manitoba
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    273
    hmmm...if the noise only happens when you hit the brakes....i would recheck them.sounds like they are possibly loose and jammin up some.if you can't hear any noise when you ride on bumps then i dought it is shocks...man i hate drum brakes.
    1985 250sx.
    1991 trx 200,1500 superwinch,snow plow(hers)
    1985 125trx. kids toy
    05 baha 90 mini quad
    110 atc (just picked it up)
    garmin map60c

  3. #3
    mikey's250sx's Avatar
    mikey's250sx is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Nov 2004
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    lancaster, pa
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    417
    i'll take a look later. i will check the oil also. should i be looking for any bubbles or certain coloring?

  4. #4
    Join Date
    Jan 2005
    Location
    south manitoba
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    273
    i have no experience with fork oil ,try dumpin the fork oil and refill with 180cc or 6.08oz with dextron tranny fluid or a 10Wfork oil.this info is from a honda sevice manual.
    1985 250sx.
    1991 trx 200,1500 superwinch,snow plow(hers)
    1985 125trx. kids toy
    05 baha 90 mini quad
    110 atc (just picked it up)
    garmin map60c

  5. #5
    Join Date
    Jun 2003
    Location
    South of Rochester, NY
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    3,471
    man... more memories of my oriignal 82 Big Red. The front fork bushings were shot... when ever I put on the front brake, it'd clunk as the lowers would tilt against the uppers. When you put on your brake, look down the fork and see if you see any play in the lower forks against the upper fork tubes.

    The ironic part, is that we bought the plastic sleeve3s to fix the forks, but the front end wouldn't come apart. We got rid of it before we messed with it. The Honda OEM parts for it are still hanging up in the shop!

    Bruce
    '85 ATC350X - "Showgirl" '86 OEM plastics/Fork boots, Rear Axle/Rotor/Hubs, Hondaline Fender stabalizer/extender, Speedo/Tach, Tank cover.
    '86 ATC350X - 'Go-Go Girl'
    '82 ATC250R - 'California Girl' - Progressive springs F and R, Hondaline HL Guard, Fairing and Speedometer.
    '82 ATC250R -'Snow Bunny' Ice Racer, Very Clean, Hondaline Fairing, custom FT tire, will put in the 300R motor
    '70 US90 'Ol'Girl" - Aquarius Blue... all original seat and tires. Resto project in the future
    '85 ATC250ES-'Workin' Girl' CMP Footguard, Hondaline Mudflaps, Speedo, HL Lens, Block Heater, Work Light, Foot Peg Covers and Cooler Rack
    '85 ATC70 - All Original

    '84 Yamaha 225DX - Durablue +3" axle, DR motor, New Plastics, Foot, Hand and HL Guards.
    '85 Yamahauler - Gun Rack & 'Nerf Bars'
    '85 Yamahauler - Nearly together and restored
    '83 Suzuki ALT125 - Pieces
    '89 Suzuki LT-4WD - Token Golf Cart

  6. #6
    ATCnut is offline Got The Holeshot Arm chair racerJust too addicted
    Join Date
    Nov 2002
    Location
    Auburn Washington
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    799
    One of my 250sxs has that clunk, it is caused by the brake assembly banging against the stop on the fork. There is a square nipple that the brake assembly goes around, the nipple is what keeps the brake from rotating with the tire. I put some thin rubber gasket material around the nipple, between it and the brake assembly. this stopped the clunk.

    As to the front end diving when you put on the brake, that is normal for all trike front brakes
    ATCnut

    82 185s - sold
    83 200x (hopped up)
    84 200x (stock)
    84 70 (lost this one to the DMV)
    85 70 (soon to have lights, a foot brake, and CDI ignition)
    84 200es (parts trike) - sold
    85 350X (the best)
    85 350X (siezed motor, dream of a poweroll kit someday)
    85 250sx (frame was trash, got parted out)
    86 250sx (the tractor)
    86 250sx (a nicer tractor)
    86 250sx (an even nicer tractor)
    87 200x (parts trike, its really rough, a dog was chewing on it for a while)
    87 250es Big Red (the tank!!)

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