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Found 306 results

  1. hey guys, Recently acquired a 2004 KTM 250 EXC. I'm looking for more power, better response. I've searched, but can't find an answer. What year heads and CDIs from 250SXs will fit my 2004 250 EXC? thanks for the knowledge.
  2. Which bike would you buy and why? KTM XCF 250 Yamaha YZ250fx thanks!
  3. Has anyone installed and used a Checkpoint impeller? I see dirt rider had an article about them and I've been curious about them. I've been having overheating problems recently and after spending well over $200 on brand new radiators I've discovered the radiators weren't the problem. So I bought new piston rings since they were out of spec (supposed to be like .15 and they were .5) and then thought about buying one of these aluminum impellers to help the problem instead of keeping the flimsy plastic one. I've read mixed reviews about them. Has anyone had any luck with them or is it basically just paying for the same overheating problems to happen?
  4. Hey, guys. Just wanted to share a pic of our 250. If you have any questions give us a shout. It's also for sale! tmracinggeorgia@yahoo.com
  5. I got a new to me 2001 yz 250 which has a healthy motor and jetted properly for my elevation. The problem I'm having is when I'm in gear riding and push in the clutch the rpms don't drop to idle but if I give it gas it doesn't slip and revs freely. I can start the bike in gear fine and looked at my clutch already which has plenty of life left and my clutch basket is in good condition to. I adjusted my clutch freeplay which was already in spec. It has aftermarket clutch lever and I maxed it out as far as it can go outwards but the rpms still wont drop to idle when im trying to coast in gear. Another weird thing is if I'm stopped in gear with clutch pulled in it is at idle speed. Any suggestions is appreciated because I don't know what else to check.
  6. I bought this bike 8 months ago and it ran like a champ since I got it. The guy I bought it off of had the bottom end completely rebuild right before I bought it off of him, he had receipts showing the bottom end was only done 2 weeks before I bought the bike. Well I went out riding yesterday and in the middle of hitting a hillclimb it locked up and shut off on me. I was reading that wiseco makes garbage crankshafts but I wasn't sure if it was just because it was a wiseco crank is why it failed or if I was doing something wrong. The synthetic looking stuff they put on the crankshaft melted and seized my connecting rod. It's a 1999 KX250
  7. So basically. I got this yuuuuggeee RM250 in a trade. It is a really nice bike. I really didn't know much about it when I got it, except that it was very pretty and extremely fast. Anyways, I look it up and find that its the only year of air cooled engine w/ mono shock suspension. Anyways I have been storing the bike ever since on inside of my house and I think its time to make some space. The bike deserves to be ridden more... Honestly, I am a little afraid of how fast it is! And in case you can't tell where this is going... I decided to sell the bike and thought maybe you would be interested. I know its not from the best era or the coolest bike you've ever seen... But it is clean, fast, and pretty dang rare. If you appreciated that I didn't just throw this at you and say BUY MY BIKE and instead wrote a semi-thoughtful write up about it and then hooked in the advertisement at the end. You should check out the bike on Ebay. Ill put the link below. It deserves a good home. Someone like you. Someone like your son who's birthday is coming up. If someone wants it come and get it. No reserve, I sell to highest bidder no questions asked. I will help with shipping, provide more info, etc at jonahdeich@gmail.com. The bike is located in Savannah, Georgia http://www.ebay.com/itm/222475245091?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
  8. I just bought a 2003 kx250 a few weeks ago. The guy I bought it from said he dropped the bike on it's side, and after that, the front brakes would "act up," but after feeling them, I figured they would just need bled and would be fine. After getting the bike home, I bled the brakes and realized that they weren't just mushy, but they would only grab on for a second before losing pressure, even while holding the lever all the way down. Sometimes they grab a lot harder for a lot longer, but they mostly just squeeze for a quick second. Also, when attempting to bleed the brakes for the third time, I realized that every time I pulled the brake lever, bubbles would rise from the bottom of the reservoir, which I was thinking maybe meant the master cylinder was damaged causing it to pump air into the brake line, but I don't know. I don't really want to take my bike to a shop or to buy a whole new front brake setup, so any help or advice would be appreciated. Thanks! (Edit: I've never dealt with dirt bike brakes, so this is all new to me)
  9. I've done a little bit of searching and I can't seem to find a reliable source for the stock sprocket set up for my bike, 2008 KTM 250 XC-F. I bought it second hand with 13/50 which was great to learn with, lots of torque to the rear wheel and it lugs well with the 280cc Big Bore kit. My issue now is that I am beginning to advance in my riding skill and constantly find myself needing more speed. I top out at about 38-40 mph and in hare scrambles (straight open sections) and even on big MX tracks (XL double features) I need more speed at times. I am open to suggestions about what works for others but would also like to know what came stock on this bike. Thanks y'all! Mark
  10. How can i fix this? Why is this happening when everything else if fine? Took it to a machine shop guy said 100 in labor to do sleeve and he said he didnt know if they made sleeves but they do. Im considering on buying a brandnew cylinder but lots of money didnt know if cylinder could be fixed or this will happen again. Heres the piston, then top of jug has chips taken out 30-50 thousandths
  11. I am looking at getting my first dirt bike, I have ridden quads and have always wanted to ride bikes. Before people start sharing there opinions about 2 stroke vs 4, this is what I'm looking to get out of the bike. Something that is fun and easy to learn on, Period. Don't worry about maintenance costs or the "thrill" of 2 strokes etc... I originally though 2 stroke but my buddy has a 2 stroke kx250 and i felt like i was out of control every time time i gave more then a touch of throttle. Is this because I'm new to riding dirt bikes or is this a 2 stroke thing. I want something that is easy to control and I like what people say about the smooth power bands on the 4 strokes. Cheers, Kyler
  12. This topic has likely been covered before but I figure my situation is a little different. Im 25 and weight 155lbs. Currently I've got about a years worth of consistent motocross experience under my belt on a 2008 CRF250r. In addition to that I have about 3+ years of street riding experience on various 450cc supermotos'. My question is, when would it be appropriate for me to bump from my 250cc up to a 450cc for motocross? Obviously a years worth of experience on a 250 means I haven't squeezed that bike of its full potential yet but recently I rode a friends yzf450 for a few laps at the mx track and was blown away how much more planted it felt compared to my 250. I'm guessing it was the increase of torque and possibly the small weight difference that made it feel that way. I felt very comfortable on the 450 but at the same time I was taking it easy and could also feel how much of a monster it really was on the mx track and would not be as forgiving as my 250. It may sound stupid but I almost felt safer being able to get over jumps not having to wind the bike out for all it had like some jumps on my 250. Right now im recovering from a broken foot after a pretty bad crash at the beginning of the month so it's going to be a while before I ride again anyways. The other reason I feel inclined to get a 450 is because in addition to riding mx, I would really like another supermoto. You just don't supermoto 250cc bikes its just not worth it. So at the end of the day, should the 450 on the mx track best be left to the much more experienced, or would a rider like me with a year under my belt get along well with a 450. I haven't ridden any of the newer models but I think there is a button to switch fuel maps to tame the bike down a bit. That would probably help the transition some. What are your thoughts? Thanks in advance!
  13. Hey I was just wondering if anyone could help me with jetting specs and proper premix ratio. I have a 2004 yz250 2 stroke with v force reeds, and a pro circuit fatty pipe. Mostly trail ride and hill climb with some track activity. Was wondering if anyone e could shed some light because it seems like I'm running super rich. Any help is appreciated, thanks!
  14. I went out riding for the day and on the way back home i fouled my plug so i walked it the rest of the way and i took a wire brush and cleaned my plug and it started first kick. I noticed it was a bit rich on the pilot so i adjusted the fuel/air screw and got it running really good but then i saw coolant steaming out of the radiator cap so i quickly turned it off and later in the week i diagnosed it as a blown head gasket so i ordered it and replaced it and didn't start but it backfires out the exhaust when i kick it. I even tried bump starting it towed behind a quad and still nothing but i heard it fire every so often but didn't start so then i started tearing the bike down cleaned the carb really good got all the jets, replaced the pilot air screw since it was missing parts, got a new spark plug cap since it was rusty inside and the plug was loose in there, took apart and cleaned the power valves, cleaned the spooge out of the expansion chamber and silencer but still wouldn't start so now i don't know what to do i think it might be a timing problem since its backfiring but i really need some more opinions before i start f-ing with it.
  15. Hello everyone! I'm looking to get into dirt bikes and need some advice. I have a little experience on bikes from 5-6 years ago going out riding track with a friend on his yz85. They always said I was, "naturally talented" and needed to slow me down, but again tiny bike. I have been practicing on his old XR100 and having no trouble. We will be doing mainly desert and trail riding. I'm looking mainly at 2Ts because of their low cost, low maintenance, and just seem more fun. Now, I have a budget of around 1200-1500$, and there are many 250 2Ts in great condition in my price range. There's a YZ250 that's been done over to be enduro and my dad really thinks I should get it. I honestly think I could possibly ride it, but I'm also cautious because I'm aware of the huge power it has. One friend says I couldn't, the other says I definitely could. I'm 5'10, 15 yo, 130lbs. Thank you so much for your help. Link to bike: https://losangeles.craigslist.org/sgv/mcy/6209138331.html
  16. So I'm looking for some pivot levers for my clutch and hand brake on my '99 KX 250, I found these ones on amazon that say they will fit an '00 to '04 kx250, do you guys think these would fit my '99? if not do you know any that I can buy online, Im looking for green ones specifically, Thanks. https://www.amazon.com/MZS-2000-2017-2001-2017-2000-2005-2000-2004/dp/B01E6XQDFM/ref=wl_mb_wl_huc_mrai_1_dp
  17. Im trying to decided between the 2013 or 2014 crf250r . I just wanted your guys opinions on what you think is a better bike. i heard the 13 is weak on low end power but can you fix that with mapping? then i also heard the fuel injection on the 14 is better .Is it really all that much better or does it not make a big difference?
  18. Lodgey

    Won't Start

    Hi All, I am trying to find ideas of why my 2010 CRF 250R will not start. When we first bought the bike we went for a ride and had no issues, we got home and washed it and it seemed to have gotten water somewhere on the electronics and did not start for a couple of days. We let it air out and sprayed with inox and it started fine. You can ride through water and it will not have any problems, but once it gets washed it will sometimes start but not every time. The bike has about 65 Hours on it, The last ride i had it stalled on me going up a hill and it would not idle anymore. We took it to the local motorcycle shop and got the valves shimmed and cleaned out the fuel tank, fuel filter and fuel pump got a new spark plug and it idled fine without any trouble. We have just rebuilt the water pump and put it all back together and once again the bike would not start. Pulled the spark plug out as we thought the bike may have fouled the brand new spark plug and replaced it with an older one and it started fine. Put the other plug we just took out of it back in and it started again, so we kept that plug in and now it will not start again. What could be occurring this to happen? We know it has spark and that it's not starving for fuel. Reminder: Valves just done, Cleaned fuel pump/Filter & New plug.
  19. I'm looking at these two bikes as dualsports for the price and mpg. Even though I just said I'm looking at these two as dualsports I plan on putting slicks on them because I already have a dirt bike. I don't plan on any crazy mods with them except for maybe an exhaust. Which one would you recommend and why? And if you want you can throw in the CRF250L rally model as well.
  20. im am 13, 100 pounds (with gear) and currently ride a 08 yz85 and am looking to move up. first off im not rich and i have to pay for my own stuff, i am not going to be racing i mainly just ride track and trails here and there also some desert sinlge track. i am debating on witch i should get next a yz125 or a yz250f. i can handle the power i have riddden both a 125 2 stroke and a 250f and i basically fell in love with both so i am in a predicament on what whould be best. anything helps
  21. I can't get my 250 to run right. I'm an auto technician but I don't have much experience with the fuel injection ktm uses.It started acting weird after the last race. It only has 15 hours on the top and bottom ends and the valves are in spec. The bike was originally backfiring and running rough in low rpms and it wants to boil the gas in the tank. I have the tps set at .62, if I go any higher it gets worse. If I back it down to .56, the bike smooths out but I get poor throttle response with it shutting off if you twist the throttle too fast. I have cleaned the injector, changed the filter and checked fuel pressure and I even put a new tps on it. Still do doing the same thing, any help would be appreciated. Thanks
  22. Today I decided to clean the carburator of my crf250r 2005. It was my second time doing it. When I opened up the top of the carburator to remove the slide, I didn't remove the throttle shaft screw and I still slid the slide out, but the control arm is now stuck. This video explain what I should have done at about 1:00. The only difference is I didn't remove the throttle shaft screw and now the control arm is sutck up and I can't slide it back down with the slide. I was still able to remove the slide. Anyone knows how to fix this? I can't acces the throttle shaft screw anymore since the control arm is stuck up.
  23. Need help! Working on a friends bike can't figure out why the bike isn't getting spark and why the FI light is not blinking or anything. Bike ran fine when put away for the weekend and we go to start alls it does is turn over. Anyone know why or can help please?? Thank You!
  24. 06kx250F627

    Engine swap

    I have a 2006 kx250f and was wonderingly if I could swap the engine for a 450f. Does anyone know if I could do this?
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