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Thread: stripped jet on 1987 big red 250es carb

  1. #1
    Join Date
    Dec 2008
    Location
    linden,tn usa
    --
    19

    stripped jet on 1987 big red 250es carb

    i accidently striipped the top of the jet off with a flat head screw drive(didnt have the right size but tried anyway stupid me) now how do i get it out plz help any help is appreciated
    87 honda 250 bigred mint!!!

    04 honda 450 foreman s green-strong made floorboards bone stock 104hrs 653miles mint!!!

    03 honda 450 foreman es red-itp mudlights,stick stoppers,armor tech ring gear and axle,and stickers for extra ponies.lol

    02 honda 450 foreman s yellow-gorilla axles,stick stoppers,gorilla 3000lb syn. rope winch,28in silverbacks

    98 honda 300 fourtrax 4x4 tan-itp mud lights,gun rack,mossy oak rear seat,mint!!!

    02 honda 350 rancher 4x4 orange-25in vampires

  2. #2
    Join Date
    Mar 2010
    Location
    Pacific NW
    --
    4,255
    so you mean the brass jet kinda snapped off one of the ears?
    Before you go too far. are you sure it needs to come out?
    Maybe just blow thru it to make sure it's clear and forget it ever happened?
    They don't usually go bad, just clog with some hard calcium / plaque type deposits
    altho there IS one jet with an emulsion tube under it that likes to plug up with muck.

    Which one is it?

    What's your carb number?
    keihin 08 or ??

    If it isn't the jet with the tube under it, I'd pretend it didn't happen.

    BTW, I too, have an 87 es orig owner trike....one of under 5,000 made
    so I know the feeling.

    While you're in there, make sure your choke enrichment piston
    moves freely but don't put any more pressure on it than you'd care to have against your fingernail.
    They are pulled by the cable that yanks on some really flimsy metal tangs.

    You DO know there are manuals for free under the 'world class help' section.
    Fun to read and almost as fun as the orig sales brochures.

  3. #3
    Join Date
    Dec 2008
    Location
    linden,tn usa
    --
    19
    like the slot where the flat head goes is stripped out i tried cleaning it out with it stuck in there but still nothing i also believe it was the primary jet as it is referred to in my original honda shop manual
    87 honda 250 bigred mint!!!

    04 honda 450 foreman s green-strong made floorboards bone stock 104hrs 653miles mint!!!

    03 honda 450 foreman es red-itp mudlights,stick stoppers,armor tech ring gear and axle,and stickers for extra ponies.lol

    02 honda 450 foreman s yellow-gorilla axles,stick stoppers,gorilla 3000lb syn. rope winch,28in silverbacks

    98 honda 300 fourtrax 4x4 tan-itp mud lights,gun rack,mossy oak rear seat,mint!!!

    02 honda 350 rancher 4x4 orange-25in vampires

  4. #4
    Join Date
    Oct 2007
    Location
    Minneapolis mn
    --
    4,067
    Grab it with a visegrip and spin it out... Replace it with a fresh one...
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  5. #5
    Join Date
    Dec 2008
    Location
    linden,tn usa
    --
    19
    its the one down in a hole so u cant grab it with vice grips
    87 honda 250 bigred mint!!!

    04 honda 450 foreman s green-strong made floorboards bone stock 104hrs 653miles mint!!!

    03 honda 450 foreman es red-itp mudlights,stick stoppers,armor tech ring gear and axle,and stickers for extra ponies.lol

    02 honda 450 foreman s yellow-gorilla axles,stick stoppers,gorilla 3000lb syn. rope winch,28in silverbacks

    98 honda 300 fourtrax 4x4 tan-itp mud lights,gun rack,mossy oak rear seat,mint!!!

    02 honda 350 rancher 4x4 orange-25in vampires

  6. #6
    Join Date
    Oct 2007
    Location
    Minneapolis mn
    --
    4,067
    small easy out....??
    No trikes. Too old, too crippled. Unless I find one I can't live without!
    "You cant fix stupid" ~ Ron White
    My feeback link: http://www.3wheelerworld.com/showthr...ack-for-Thorpe

  7. #7
    Join Date
    Mar 2010
    Location
    Pacific NW
    --
    4,255
    I'll have to look at one again.

    On the older qa01 I remember boiling the carb to get it hot
    and
    got some of that freeze wart remover to shrink the press in jet
    and it almost fell out.

    I wonder if the same physics applies to threaded things.

    but really, if it was mine, I'd make sure it isn't the jet with the emulsion tube under it and forget it, or blow it our real good and then forget it.

    It worked great for a quarter century so if it comes around to working,
    you won't have to worry about it for quite a while.

    I have my first 85+ replacement carb, around 120$ but with a regular flip choke.
    Works great, but I know your trike is one of the last collector versions so you prob want to stay stock.

    All the jets I've been able TO unscrew, usually take some good torque and then simply PoP and release.

    I hate to say it but there is also a chance of cracking the aluminum carb casting if you get too rambunctious.

    Ya know?
    I think cattle-dog had a newer keihin carb for sale at one time.

    You can also check the classifieds as a last resort.
    Attached Thumbnails Attached Thumbnails 250sx_carb.jpg   JETgraph.jpg  
    Last edited by tri again; 07-16-2011 at 11:15 PM.

  8. #8
    Join Date
    Mar 2006
    Location
    Oregon
    --
    2,471
    Reverse DRILL bit !

    worked for me, or A easy out
    If you have Bought a item from me, Please leave me feedback
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    Click on link ~ http://www.3wheelerworld.com/showthr...ceaserthethird

  9. #9
    Join Date
    Oct 2002
    Location
    Northeast
    --
    17,460
    Brass isn't fun in anything; BUT, it tends to grab the drill bit and may spin out. I'd try a LH drill bit also or an easy out after a little heat. Jets generally don't have corrosion unless they sat for years with crap gas in them. But I NEVER use a crappy screwdriver in the imbedded jets or your asking for trouble.....
    All our government does is distract us while they steal from us, misspend our tax $ and ruin our country

  10. #10
    Join Date
    Mar 2010
    Location
    Pacific NW
    --
    4,255
    x2 on the LH drill bit.
    If you can really tune into it, rev wise and size wise,
    the best thing that can happen is it bites, like it's gonna twist the drill out of your hand, and then pop the jet loose
    and spins it out.
    ..so a variable speed reversible drill would be my choice.
    The chuck may come loose since it tightens the other way.

    A procedure not necessarily for the faint hearted.
    Drill bits and ez outs are generally quite hard and DO fracture and broken drill bits are hard to drill out.

    I just broke one off today, as a matter of fact.

    If you do go that route?
    try backing out a drywall screw out of a 2 by 4 with the reverse drill bit so you'll
    have an idea of the physics involved.

    My hope is that the carb will simply work if you blow it out real good and just put it back in.

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