Calling All 250 Riders!

I am just hoping for a quick answer to my question. When I say quick, I don't mean 2 words or something like that, it can be as long as you want.. more detail the better! When I say quick, I mean getting an answer fast.

Ok, my question:

How often should you re-ring your 250 2-stroke? (Hours)

Thank You!

Colton W.

You should decided when to re-ring your two-stroke after completion of these two steps:

First, consult the service manual for your bike.

Next conduct extensive research on this forum by using the search tool.

Then you will have the knowledge to make a decision.

Depends on the rider greatly. I've seen casual riders go several seasons on a top end. An agressive rider might have to do a couple top ends a year. I need roughly one top end a season myself, I'm in Ohio too, no winter riding for me.

I never re-ring a piston, especially on a 250. My pistons are pretty worn by the time the rings are also worn.

On my YZ125.. I put about 60 hours on it in 1 month.. I ride.... medium. :lol: Alot of the time I am putting around at about 3-4K RPM and sometimes I come down the stretch of yard holding her WOT for about 5-15 seconds at the MOST! Compared to the 125 do you have to ring it less? And what is considered a 'season' ? Like spring/fall/summer?

I use a hour meter to know exactly how much running time the engine has between top end jobs. Typically I'll do a top end after about 55-60 hours of running time. Usually at this point the motor still feels fine but for about $120 I can do a complete top end job. So for me it's cheap insurance against real engine damage. I run stock pistions they work fine for me. I'll never just re-ring my top end. If I am going to take the time to do that I figure may as well do the whole top end.

60 hours a month? I suggest getting an hour meter, that's a TON of riding. I really doubt you are running your engine 60 hours each month. Also, you've got one big yard if you can hold it WOT for 15 seconds in it.

Like others said, how you ride and how much you ride will determin how often you need to rebuild the top end. I'd say 60 hours on a 125 is too much, even if ridden easily. For a 250, that would be about the limit, I think.

I ride my 250 on technical single track, so even when riding "fast" you are hardly on it at all compared to doing motocross, or something really harsh, like dune riding. I do a top end every 50 hours or run time, going off my hour meter. For me that's ~ 6 months of riding. I know some guys that could probably go 5 years before getting 50 hours on a bike.

Yea, I have a huge yard, them my naighbor has 12ish acres attached to my property and they let me ride on that, and along the tree line, its a long straight-away.

During the summer, I ride EVERYDAY. I love it too much not skip a day! I ride most the time from about (starting) 8-12 to (ending) 8-10. Sometimes I may get about just 4 or so hours in. Within those hours, take out about 1 1/2 hour for time I take a break..

But I also have a job during the summer, so about '$120' is managable. I won't mind paying that much!

I was wanting to get a 250 4T (CRFR) and people said putting 120 hours on a top end was pushing it.. that includes vavles, piston, rings, seats, ect.. and thats EXPENSIVE! 2-strokes make better power, more fun to ride, deliever more/better adrenaline rush, easier to work on, cheaper to maintain, sound better, unique, and not everyone has one, nor knows how to ride one!

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 neonmarine
      Hey guys, 
      I've used this forum as a "guest" for awhile now and I thought I'd share my build now that it's all coming together.  The primary purpose of this project is to help me train for roadracing my 2009 R1 at lower speeds as well as giving me a cheap alternative to racing the big bike. 
      Here's what she looked like when I picked it up from a local shop.  Paid $800 cash for the bike as you see it with 17' rims, FMF pipe, EBC 250mm front rotor and clip on handle bars.

      Fits PERFECT!

      Shake down run at the Herrin Compound last summer:

      As she sits today:

    • By 125 yamaha guy
      i bought my yz125 from a dealer and they said that the clutch was broken so i bought it and it worked fine it would run move and everything and then it started to act up and now only first gear works barely though. when you put it in first it acts like its bogging down but its not and when you go into gears 2-5 it wont move i dont know whats wrong with it im assuming the clutch is slipping or something if you know please leave me a comment 
    • By Randomneewb
      Hey guys, I have a 2003 cr125 I bought a couple weeks ago and I'm having a problem with it. The spark plugs die every about 15 minutes, with hotter plugs it will last about 45 minutes. I herd that if the timing is off it can over heat the plugs and burn out the the resistor. Is there any truth to that? The reason I thinks it's not fouling is because when the plug dies it gives no spark no matter how much you clean it, And it shorts out. 
    • By fiat2nv
      Hi all, First post here. I need some help.
      Ive just bought an 05 yz 125 for a good price but it needs some work. One of the forks has some pretty severe pitting of the chrome on the stanchion towards the bottom near the brake caliper mount.
      Ive found a pair of good condition forks from an 04 yz250 for a very good price, from the research ive done its seems that both the 04 & 05 forks are 48mm but are different, with the 05 fork regarded as being better than the 04, but not as good as the 06 + sss forks.
      Im looking for the cheapest way to get me riding, Will I be able to make the 04 forks work with my 05 triple clamps, brakes, wheel, axle, spacers etc? If not does anyone know what hardware id need to make it work?
      Finally, as a last resort, does anyone know if i could swap the stanchion from the 04 fork into my 05 forks?
      Thanks, Andrew
    • By idratherberiding
      I bought a 2006 YZ250, have ridden it 5 times.  It needs some tuning, but I am not sure I'm keeping it so don't want to spend much on it.
      Has fmf gnarly expansion chamber and turbine core silencer.
      I ride about 1000 feet above sea level.
      I'm going to clean the carb and check the jetting.  What is a good jetting for me?  85 main jet?
      Also check the reeds.  Is there a big difference between getting aftermarket reed cage and reeds or just getting a cheap aftermarket set of reeds that fit the stock cage ie.  Boyesen Power Reeds?
      The other things I'm going to do is permatex all the joints in the exhaust system and a compression test.   It was 220psi 5 rides ago so I'm guessing itll be fine.  Its bogging a bit but I'm thinking its carb and definitely exhaust joint related.  
      Let me know if I'm overlooking anything that could make the bike run crisper and more bottom end without throwing much money on parts