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Thread: '84 250R Throttle broke!

  1. #1
    Join Date
    Dec 2007
    Location
    Orange California
    --
    12

    '84 250R Throttle broke!

    I am still trying to get these two back together, '84 is a bad year for parts. I discovered my thumb throttle on the 250R is broken, the plate the cable connects to is cracked and the square drive spins inside of it (found out it is common), so I checked on EBay and found a few, but when I asked if they were cracked and broken, most were.
    My Question is will a 350X thumb throttle fit or what other models can I look for?
    Really don't want a twist throttle, unless I have to.

  2. #2
    Join Date
    Jan 2008
    Location
    South Louisiana
    --
    60
    are you referring to the entire throttle assembly? (black box 3 screws on top, houses the thumb lever and has a hole where the cable goes in? if so, you don't have to get a model specific one. all of the new ones for the 450r's and 400ex's use the same type of set up. i have a brand new one coming for my 83 250r. it is from a new 450r. you can find em new in the box on ebay for like $55

  3. #3
    Join Date
    Dec 2007
    Location
    Orange California
    --
    12
    I saw the EBay auction for that throttle, he doesn't mention the 83-84 250R. Do you know if the throttle cable adjuster will screw in or does that have to be modified?
    '84 250R
    '84 200x

  4. #4
    Join Date
    Mar 2006
    Location
    PA
    --
    3,515
    basicly you can use any throttle you like as long as you use the cabe made for that throttle ( if its different)

    i only use suzuki 250 quad racer throtles since thats what i like and the q-racer cable works on any carb

    and unlike most honda throttles it will open a 42mm carb with no mods
    80s......185 atc, Yamaha tri-moto 200, 85 200x with tons of work
    90s......89 Suzuki quad racer 250 (raced 250 A class for 6 years, late 90s.. custom framed 250x with long travel shocks and a built 350x motor.... built Honda 110
    00s...... chomeoly framed 350 RX with all the goodies (thanks to my bro)
    2012.....Replaced the 350x motor for a 444cc YZ426
    WWW.HREATV.COM

  5. #5
    Join Date
    Oct 2007
    Location
    Grosse Tete, LA
    --
    3,440
    not to dig up a dead thread...but will a 350x thottle open a 42mm carb completely?

  6. #6
    Join Date
    Jan 2005
    Location
    RI
    --
    2,530
    No, but a 85+ trx or atc throttle definately opens up a 39mm. I run them on all of my big carb trikes.
    1986 Tri-z
    1985 250r
    1985 200s
    1985 70[/SIZE]

  7. #7
    Join Date
    Oct 2007
    Location
    Grosse Tete, LA
    --
    3,440
    here's another question...when holding the carb in your hand...and you press the throttle, the carb does seem to open up...i'm using the 450r cable.

    the throttle only moves about an inch.

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