I have been thinking that Xrs have been getting weaker rather than stronger. The most recent xr250 I rode couldn't even begin to compare to my old XL250 from top to bottom. As a matter of fact, my 400 was feeling quite pathetic until I did some mods. Still no where near my CR250, but at least it is tolerable.

I guess you can sooth him by saying at least it's newer than yours.

There are a lot of little difference between the bikes that can add up.

First is the 600 a california model? If so, you have so much smog stuff on there it is killing the power.

Second, gearing. You running the same gearing? Plus you have a 17" rear wheel. What about the 600? If it is 89 or newer it will have a 18". Could make a difference in tire size and overall gearing.

Weight, they did get heavier as they got older.

How about things like get an aftermarket filter? Rejet the carb? Open the exhaust a bit?

lastly , what is your weight and your buddies weight?

I will take a guess here that your bike is not stock and his is. It can make a difference. Have your friend on the 600 install a 13 tooth front sprocket and then go at it again.

I had an '84 XR500 with a 10.25:1 piston, Cobra pipe, and a Uni Filter. After that bike, I got a '99 XR600, put a Uni Filter and a White Bros. E-Series on it. The 500 had 14/50 gearing, the 600 had 14/48 gearing.

There was no comparison between the two--the 600 would wipe the floor with the 500. Truly a day to night difference.

How do I sooth my friend with his 600? My 500R walks all over his bike in the straights, everywhere.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By mrdsee
      ~177 Titanium bolts, nuts, washers etc leftover from various motorcycle projects. XR650, YZ 125, YZ250 a mix of new and used once hardware.
      Made by Mettec
      Over $2k worth of hardware
    • By Xr600guy
      So I don't seem to find my specific issue so here I am asking. 
      I have a 1997 Xr600r. It was recently re-jetted and has ran really well ever since until more recently it has begun to have this issue.
      Everything works fine. Kicks right away, nice and easy. Runs great, sounds great, purs. But when I'm downshifting and slowing down to a stop, if I let my hand off the throttle that's when it just dies. I found that I can counter this by lightly holding the throttle as I down shift (so I'm revving quite a bit during downshift).  But it hadn't done this before. 
      The only thing I've done that I suspect may have been an issue on my part was when I pulled out the engine to change the valve cover gasket and upon doing so perhaps when connecting the carb back to it, I may have missed something or made a crack in the boot? 
      Any ideas? Thanks 
    • By Kenya
      Hello all,
      There's been a lot of talk about how to register a dirt bike in states that don't allow it.
      I just moved to North Carolina and for the first time in my life might be able to afford a bike. I've been dreaming about an XR650R for a long time, but they're not cheap. Plated bikes seem to be more expensive too. So here's my question, has anyone tried to plate a dirt bike by adding all the necessary features and having it inspected as a custom bike? Anyone know of another way I can plate an xr650 in NC?
    • By Jsmoot
      Hoping for some help before I throw in the towel and end it all!
      Engine starts fine, runs and idles well for +/- 10 minutes, but cuts out while riding once the engine warms up (175 - 185) and intermittently cuts out thereafter (any speed/gear). It will start up after 30 seconds or so (but won't run for long before dying again). No spurting or surging.. just dies.
      I've replaced CDI (twice), Spark plug, spark wire and coil, and most recently pulse generator. I do have a 41mm Flat side carb from a CRF (and it has more power than the old carb setup), breathing through a Uni filter. Also, sealed battery tender battery (hasn't shown low when trickle charged).
      What's next on the test/replace list? Stator maybe? Please help...
    • By Richard Stevens
      I found a buddy that’s going to help me with the “Dave’s Carb Mod” after that what size jets should I order before we begin? I’m in Cols Ohio and 1140 above sea level. Should I just order the Dyno kit or FMF kit or should I just go to jets r us and order 2-3 from there? Thanks all so much help. Love it. Stay safe out there.