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Thread: 86 250r performance

  1. #1
    wanta86r's Avatar
    wanta86r is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    86 250r performance

    i wanted to get your opinios on the best pipe and silencer combo for the 86 atc 250r, i am also looking to upgrade the reed setup. also when piping i want to change the exhaust flange because mine leaks very bad- any info you guys can provide would be greatly appreciated

  2. #2
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    I would go with the dg exhaust system, and go with boyesen power reeds, you can get these 2 things out of the dennis kirk magazine.
    my trikes:
    1983 honda atc 200x-k&n filter
    2002 yamaha raptor 660r, yoshimura slip on, prm grab bars
    1978 chevy nova, 454 v8, bds blower, 150hp shot of nitrous, full roll cage, a real power house.
    1991 chevy s10 4x4 350v8.
    1986 250sx
    YES its fast NO you cant ride it.

  3. #3
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    get a esr exhaust, or second a fmf, the fmf is more low to mid and the esr is mid to top. Ihad a paul turner on my trx and it was nice too. might want to try a paul turner also. Dg is basically stock replacement, if you call they will even tell you this.

  4. #4
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    go fmf u will pull like a OX out of the hole dg is like a wrench report pipe (if u could call it that). go wit v-force reeds VERY good and lots of flow
    adam
    86 ATC 500R the duner..
    85 ATC 500R...the not quite finished faster duner
    1985 ATC 250R Bone stock!!
    1985 ATC250R mx/duner
    1986 TRX370R MX/Duner
    94 Banshee 400PV Cheetah 105RWHP

  5. #5
    3leggeddog's Avatar
    3leggeddog is offline The sun shines on a dogs ass every now and then Got the holeshot
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    i like my PT pipe and silencer,it's the type 6 low end pipe,and it does just what it says,it makes tons of tourqe,good for what i do,tight tech hill climbs,depends on what you ride really.they also make a high rev pipe that is supoose to be good for a 23% power gain over stock,the quality is good and it fit nice
    Full Walsh CRF 450 hybrid 250r

  6. #6
    a-camp's Avatar
    a-camp is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    FMF just bolt on and ride. To get to the point FMF pipe and silencer Boysen RAD vaulve ,KNN filter. 148 main jet 43 pilot 1 1/4 turns out on carb.Hold on!!!!!!!

  7. #7
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    What kind of riding are you planning on doing?
    www.3wheeler.org

    * * * Nothing scares me more than someone who knows, with certainty, what is best for me * * *

  8. #8
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    Wanta86R, no matter which pipe you decide to go with, try one of those billet aluminum exhaust flanges. The good ones have high temp O-rings that'll make pipe installation & removal a breeze, and they seal great & don't leak, plus they look cool!
    Red Rider's Sand Machine Updated 07/23/14

  9. #9
    wanta86r's Avatar
    wanta86r is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    thanx for all the input- i plan on doing mosty hard trail riding, but just want the best pipe for all around performance

  10. #10
    wanta86r's Avatar
    wanta86r is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    RED RIDER- what brand of exhaust flange would you recommend?

  11. #11
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    ESR ATC-5 for sure.

    I replaced my DG with an ESR, wow what a difference.
    08 Outlaw 525s
    07 CRF70
    04 Harley FLHRCI
    04 TRX90
    03 XR650R
    03 400EX- XR650R engine
    02 XR100R

    01 Banshee
    00 XR50R
    00 XR70R

    99 PW50
    99 JR50
    96,95 Sportsman 400
    95 Xplorer 400
    94 Indy XLT
    87 Trail Boss
    86,86,86,86,86 Scrambler

    86 TRX70 x2
    85 ATC350X
    85,84 ATC250R

    85 Red Tecate
    85 LT50 x2
    84 XR500R
    84,84,84,84,83,82,80,79 ATC70
    82,79 XL500R

    83 ALT50
    79,78,77,77,76 XT/TT500
    76,75,74 XL70
    72,71,71,71 SL70

    72 Harley FX
    72,71,70,70,70,70,70 CT70H
    72 SL100
    70,69 Z50

  12. #12
    a-camp's Avatar
    a-camp is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    Quote Originally Posted by Red Rider
    Wanta86R, no matter which pipe you decide to go with, try one of those billet aluminum exhaust flanges. The good ones have high temp O-rings that'll make pipe installation & removal a breeze, and they seal great & don't leak, plus they look cool!
    I got mine from James Lucky had to machine it down to fit. To big for FMF and stock pipe . I just recieved my Mallot Exaust clamp .I had to machine half way through to get it on.To tight. No more leaks I hope...

  13. #13
    wanta86r's Avatar
    wanta86r is offline At The Back Of The Pack Arm chair racerAt the back of the pack
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    BLOWN 331- where did you get your esr pipe from, and how much did it rub you, also what kind of power does the esr give you?

  14. #14
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    I bought the ESR pipe from ESR. It lists for $240 but we bought 2 at one time and they sold them to us for $200 each. I just asked for a better price and they came down to $220 then they had to make the pipes so it took a longer time then they said so they came down to $200 each. I replaced my DG with the ESR and the power gains were insane. Biggest gain from exhaust I have ever seen and I've piped TONS of bikes with expensive exhaust systems. Their website is www.esr250.com I heard it was having problems though.
    08 Outlaw 525s
    07 CRF70
    04 Harley FLHRCI
    04 TRX90
    03 XR650R
    03 400EX- XR650R engine
    02 XR100R

    01 Banshee
    00 XR50R
    00 XR70R

    99 PW50
    99 JR50
    96,95 Sportsman 400
    95 Xplorer 400
    94 Indy XLT
    87 Trail Boss
    86,86,86,86,86 Scrambler

    86 TRX70 x2
    85 ATC350X
    85,84 ATC250R

    85 Red Tecate
    85 LT50 x2
    84 XR500R
    84,84,84,84,83,82,80,79 ATC70
    82,79 XL500R

    83 ALT50
    79,78,77,77,76 XT/TT500
    76,75,74 XL70
    72,71,71,71 SL70

    72 Harley FX
    72,71,70,70,70,70,70 CT70H
    72 SL100
    70,69 Z50

  15. #15
    Apollo is offline At The Back Of The Pack Arm chair racerFirst time rider
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    I also like ESR products. I have their pipe and their exhaust flange and love em. The pipe is everything Blown said about it. The flange is what Red Rider describes and is very trick. I have had it for three months and not a sign of leaks. Their number is 559 625 3157. They are on the west coast.

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