Question about XR600 Long Term Maintenance & Performance Upgrades

Discussion in 'Thumpers' started by DualSport650, Sep 14, 2004.

  1. DualSport650

    DualSport650 Lucky Burglar

    Joined:
    Apr 21, 2004
    Oddometer:
    638
    Location:
    Bend, Oregon
    I have a '96 Honda XR600 with a Baja Designs dualsport kit on it.

    This thing has been bullet proof and has NEVER had a mechanical problem. :thumb

    I've been good about maintenance...

    * change the oil every 300 miles
    * clean the air filter every other ride
    * and adjust the valves every 500-1000 miles

    I've added the following mods for more power....

    * opened the airbox top
    * grinded out the welds in the header flanges
    * opened the stock muffler end and welded on a turn-down tip
    * Re-jetted

    I plan to keep this thing for another year... or 2 maximum and then get the latest high-zoot scoot. (XR650?)

    Heck, I may even get the new bike and keep the old XR600 for my mostly street dual-sport.

    Here's my question...

    I wouldn't mind having a little more power, so what should I do next to get me the best "bang for my buck?"

    * New muffler? (FMF Powercore IV?)
    * New cam?
    * 628 kit?
    * Cam timing -> http://www.off-road.com/dirtbike/xrproject.html

    Plus, when should I refresh the engine with stuff like...

    * new valves, guides, & valve springs
    * rocker arms & cam
    * piston, rings, bore
    * etc.

    Anybody got any good XR600 stuff for sale?

    Thanks in advance for your advice... :freaky

    [​IMG]
    #1
  2. dirt rider X

    dirt rider X tropical traveller

    Joined:
    Jun 25, 2002
    Oddometer:
    400
    Location:
    Townsville, Australia
    I put a flat slide carby on mine after it ate the choke plate on the original. (typical apparently)
    Definately make the engine more responsive though I dont think there was any big increase in horsepower.
    It made the flat spot go away too.
    Cole
    #2
  3. Tim McKittrick

    Tim McKittrick Long timer

    Joined:
    Dec 29, 2003
    Oddometer:
    2,208
    Location:
    Wasilla Alaska
    #3
  4. Tim McKittrick

    Tim McKittrick Long timer

    Joined:
    Dec 29, 2003
    Oddometer:
    2,208
    Location:
    Wasilla Alaska
    Of course, if you really want to make it sing you will want the 625 kit, carb, exhaust (including headers- they do more than a muffler) and a good port job as well as a cam. Then it'll tear your arms off.
    #4