Results 1 to 5 of 5

Thread: 86 250r

Hybrid View

  1. #1
    Join Date
    Jan 2005
    Location
    Kirkland, WA
    Posts
    774

    86 250r

    hey i just picked up a 86 250r that is really clean. i am just wondering if there is any pretty cheap ways to get some more power out of it. i have a lrd pipe and lrd silencer on it. i am going to use it for flat tracking. let me know if you have any ways of doin this. thanks

  2. #2
    Join Date
    Oct 2003
    Posts
    879

    Cheap mods

    Depending on what you mean by cheap??? A good port/polish job, 38 A/S carb is a great choice for the R motor, Aftermarket reed cage like V-force or Rad valve and thats about all the "cheap mods" you can do. If you really want to wake the motor up, consider an ESR big bore. Hope that helps. Tom
    LONG LIVE THE 250R!!!!!!

    AND YES IT IS STILL NO 1!!!!!

    Tom

  3. #3
    Join Date
    Aug 2002
    Location
    Wa
    Posts
    3,090
    Yep..Im w/ Tom, only so much you'll get w/ over the counter mods ESR or FTZ are the guys to talk to about building a flattrack/TT motor, Both are well known w/ microsprints also and have done the homework

  4. #4
    Join Date
    Oct 2002
    Location
    Nevada
    Posts
    9,647
    The next "cheap" mod you can get would be a set of reeds, but that's about as far as you can go with cheap, bolt-on mods.

    I would suggest suspension mods next, but we'll keep the topic limited to the motor. The next motor mod would be a complete porting and head modification. Most any big-name shop that does porting will also modify your stock head for higher compression, and they usually have a package deal. You can also go with an aftermarket head, which will give you interchangable domes and more versatility, but also adds to the price.

    If you get porting done, be sure to get it matched to your existing pipe, or replace your pipe to match your porting.
    Duncan Racing 340PV, +2 A-arms, +4 LSR axle, and a host of other goodies.

  5. #5
    Join Date
    Jan 2005
    Location
    Kirkland, WA
    Posts
    774
    if i get porting done what else do i need to get to make it work. will the piston and stuff i have right now still work if i get it ported?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •