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Found 111 results

  1. benwilson

    yz125 or yz250

    Hi, I'm looking to buy either a yz125 or yz250 upgrading from a yz85. I'm 16 years old, i'm 6'2" and weigh about 145lbs. I'm upgrading from the yz85 because the frame is too small and I've outgrown it, plus its a little weak. I would like to get a yz250, but they are pretty pricey and my budget tops out about $1500. I found a good deal on a 2009 yz125 ($1300), but I'm wondering if there isn't enough power? I'm not really going to be racing, I might go to the local track for practice every once in a while, but nothing crazy. What do you guys think? yz125 enough power for a 145lbs teenager? Or is the yz250 the better option because of the 125's lack of bottom end power (i'm used to this with the 85)? Thanks!
  2. I start my motocross challenge with 2011 YZ450F . although i had many years experience with heavy cubic MC , from the first start i underestand it have so much power . and the first try MX track was scary and i decide to sell it . but as i am a stubborn person , i keep pushing and learning whit this bike . + mapping it as soft as possible and now i am getting better . last weekend i tried a rmz250 and was amazed how well i can drive it, but i didnt like it there was no power in it . now i need help : my friend suggest me to change to a 250 2 stroke : so how dose it feel to change from 450 4t to 250 2 stroke !? it is getting even harder !? or should i just not give up and keep pushing and learning with a 450 !? or maybe i just go to 20 4 stroke !?
  3. I'm looking for and aftermarket clutch for my 2001 YZ250F that's I've done sone aftermarket work too . I'm looking for tips , tricks , and brand information ,preferences etc . .. basically any intel thanks helpful . Thanks a lot , also I wanted to see what was up with a good aftermarket shock to put in . If they even make one for itandbsome susp bison tips etc , thanks again guys !!!!
  4. Hi Folks! I decided that I am tired of my 06 WR250F having horrible damping (i.e. none at all) and so am going to upgrade the suspension. My questions for you are, 1. Is it worth it, given the age of the bike and cost of the parts, to find old 06-07 YZ250F SSS twin chamber forks and shock and rebuild/upgrade them, or just install a gold valve or similar in my single chamber WR forks? I like the idea of bolting on YZ TC forks and shock, but the cost at this point for them both runs about $500-$600 and they are guaranteed to be clapped out and need a full rebuild/upgrade, just like my WR forks/shock. 2. Race Tech offers a compression gold valve available, but not a rebound gold valve. Can you tell me why this is? I would like both, of course. 3. Will YZ450F components work as well? If so, what year range? 4. Ohlins drop in cartridges look awesome, but front and rear would cost the worth of the bike ;-) Thank you for the help!
  5. Brock granberg

    Valve Shim for Hot Cams

    I have a 2009 yz250f with Hot Cams and it is in dire need of a valve adjustment takes about 30 kicks to start and I am planning on doing it myself I just need the correct valve shim kit and I don't know what size kit to order so I was hoping some of you guys could help me out, and the bike has a big bore kit so it is 290cc idk if that matters but please help!!!
  6. I found a Magnum 290 kit on ebay for my 09 yz250f; thought I'd give it a try. It was $400, figured that's not too bad for cylinder, piston, and gaskets. Advice #1: After you take your current piston off; put the new jug on with the water jacket dowel and the two steel dowels in place to make sure everything is going to fit right. Make sure the castings are perfect so it fits down nicely and flat. Mine were a bit too tight in one spot, and I had to dremel just a tiny bit off a steel dowel hole edge for a good fit. Advice #2: Be super careful about stuff dropping into the motor, take your time, cover the motor very well. Advice #3: The four head bolts? they are different lengths, note which goes where. Advice #4: Put the exhaust cam on first, then the intake. Advice #5: Measure your valve clearances as you take your motor apart. Otherwise you have to put it together again, just to see you would rather have shimmed. Advice #6: Put those metal clips into the cam caps, then put the cams into the caps (carefully getting the cams into the clip properly), then hold the cams as you put them in the head Power does seem to be increased everywhere. It's a noticeable increase. I had heard that it signs off hardcore up top; maybe I didn't rev the crap out of it because it was the break-in ride, but I didn't feel that. Is it a mini 450? Is it a 450 slayer? No, I mean, in the right hands it could be; but a 450 is still faster and even if you can be even with them for a stretch, then you have to shift. Mine doesn't feel as fast as a Husqvarna 350. It feels like a strong 250f, but still a 250f. Maybe now you can be one gear tall coming out of a corner, but not almost any gear tall like on a 450. The increase is noticeable and welcome though. It felt strong and I liked how it ran. I recommend this kit, it felt great.
  7. thomas cashman

    yz250f or yz125?

    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
  8. Hey guys, so recently I've noticed that my front pro circuit suspension is stiffer than hell. So I read on it and it said that sometimes it's because the front wheel is misaligned and the forks will not sit right. So I put the bike on a stand bled the suspension and got the axle nut loose and the pinch bolts, and every body said to push the suspension down or even press the brakes a few times to help align the wheel. I made sure to tighten the axle then tightened the pinch bolts. But when I tried to push the suspension down while everything was loose it barely moves at all because it's so stiff. I even tried putting the bike on the stand and turning the clickers counter clockwise to soften them up but they were out of adjustment. What do I Do? How do you guys realign the wheel? I've got a riding trip coming up soon and need as much help as I can get. I'll try to add a link to video I found of a bike doing the same thing.
  9. I have a 2016 YZ250F. I ride/race MX. I'm looking to wake up the motor a bit and am looking at different exhausts. I haven't been able to track down a good pipe comparison for my bike - The best I've found is an MXA shootout for 2014. That shootout rated the Yoshimura the best but gave the pros and cons of each pipe. Is there a pipe shootout for my bike that I just can't find, or am I stuck with digging up individual reviews? If so, could somebody please send me links to some of the reviews? Thanks in advance.
  10. Eric Andrew Charles

    How does this bike Sound!!?

    https://www.youtube.com/watch?v=pfIu-RXWiV0 Please tell me how you think this bike sounds? 96hours on it
  11. Clutch250f

    2001 WR250f Plastic Help

    So here is the problem I am in; I want to freshen up my old 2001 WR250f, I currently have the Hurricane Hannah Graphics (Tells you when I last did this) in fact I got it by busting my butt for my dad when we were selling his house and he got the kit for me as a reward and we put it on (Great Memories); but back to being on topic. So I am searching online and I noticed that the pickings for a WR especially a 01 is about as good as a finding a women at a all male school right now. So I was wondering since the frame is unchanged until 2007 when they went to the Aluminum frame does anyone know if the 2001-2006 plastic will bolt on? Cause I want to find the Yellow Plastic again, as I am a huge fan of the old Yamaha graphics kit as you can see from my YZ250x and my 01 WR. Does anyone know who still makes yellow plastic for this old bike and if the 2001-2006 plastic (with minor mods as my 2001 YZ250f plastic that's on it needed a bit of modding) will fit on the bike? Thank you in Advance!
  12. DarrellH3

    2008 YZ250f Weak Spark

    The bike has spark at the plug when grounded on the engine but not much. I have a wr250f so I compared the two. The wr has much more, bright blue spark, yz - you can barley see the spark. I switched plugs and coils between the two bikes, same result. The bike will start and run for 30-60 seconds and then die. If you crack the throttle it dies. I have checked the ohms from the stator. It all checks out with my multi meter to be within spec. I have check all connections, disconnected the kill switch. Nothing makes any difference. I have researched and read every article. Before I start buying parts and switching them out I'm open for suggestions. When the bike quit and we got it hope, I noticed that there was a hole on the radiator hose and there was no water in the bike. I figured it had run hot and melted the piston. I checked the valves. They were spot on. Pulled the top end off. The piston and cylinder looked okay. The oil rings showed wear so I put in a new piston and rings hoping. When I got it back together it was still the same. You can get it to start after several kicks but not for long. Could the heat have caused something to happen in the electrical system? Any advise will be greatly appreciated. From all I have read the cdi rarely goes out on these bikes. Thanks, Darrell
  13. Brock granberg

    YZ250F Tires

    I am in the process of street legalizing my yz250f and am currently looking around for tires either street or dual sport tires, I was hoping someone could help me find stick sized tires that are mainly for the street but if know of any dual sport tires that would work too! Thankyou!
  14. Please help! I recently bought a Yz250f and have not been able to start it, it Has spark, but there are many issues with the carby which I wanna rule out before I leap into a rebuild, ( I want to avoid a rebuild if possible as I’m low on cash). The carby at the moment is a complete mess so the usual steps to fixing it might not work. So here’s the deal with the carb: - It’s leaking fuel from overflow ( really fast! ) and when I mean really fast, I mean it emptied my fuel tank in 2 mins. - It has a slow leak coming from somewhere under the float bowl - the air fuel screw is not adjusted correctly - I don’t know if the electrics work on it either - I don’t even know if it’s shooting fuel into the cylinder or not, as after kicking it a couple times and it’s not starting I remove the spark plug and it’s still dry. ( I tried putting fuel directly into cylinder from the spark plug hole but the bike still wouldn’t start) okay so I know it’s a lot but I’m not expecting anyone to answer every single question themselves. If each person could tackle whatever problem they know it would help heaps. Also just want to know what Order to fix things in as I can’t do air fuel until the bike is running and it won’t run unless I stop the leaking and get it to spray fuel into the cylinder. And buying a new carby is not an option ( I’ve got $40 to my name atm). Please help guys thanks.
  15. Anyone know where I can get a shorter kick starter for 2009 YZ250F - want the faster spin to help starting. Happy to look at another bikes kick starter or modify stock version or buy an after market shorter version. Just cant find any options at the moment.
  16. I have an 2010 yz250f that is missing the bolt that holds the rear break lever on...I'm thinking it's the rear break piviot bolt but I can't not find one even on eBay for a 2010 can any one help...Sorry noob here
  17. Hi there, new to the forums, I bought an 03 Yz250f that had a few problems I found after I bought it. The float was stuck in the carb so I had to clean that. Installed a new adjustable fuel mixture screw for easier tuning. But it still wasn't running right, the radiator is leaking through the overflow, and the radiator cap is good. It pops more then it should. I get they pop a lot, but it was way to much considering that it was running a rich fuel mixture. So, I figured head gasket might be bad, and while I had the valve cover off to check to gasket might as well check valve clearance. But while taking the valve cover off I broke one of the screws, half of it is still in the valve cover, and the other got stripped out.. I have a ton if tools so I can get them out, and if it comes to it I can cut the valve cover off and buy a new one. But I've been looking online and can't find the screws that hold the cover on. So where can I find the screws(the Allen wrench ones) that hold the valve cover on? Where can I find a new head gasket that isn't 30 bucks? And what else should I do based off of the problems I've had so far. Thanks in advance! Ben
  18. I have had a problem where after I take my dirtbike for a ride and whether or not I wash it or not, the wheels make a very gritty dirty sound (sandpaper) when I roll it around afterwards. It has happened on EVERY BIKE I've ever owned. The only way to get rid of the sound is to go ride the bike down a looooong grass field. That clears the dirt out of (wherever) it is. What causes this noise? It has me dumbfounded and I've been wondering it for years, because I feel like no one else has this problem (or do they?)!! P.S both of my bikes have FRESH wheel bearings
  19. I'm probably going to have to get a new 270 mm front brake rotor for a spare wheel I'm getting. My choices from Rocky Mountain ATV/MC are: Stock OEM Yamaha: $102.77 RM Tusk brand SS: $60 EBC Contoured (high carbon steel): $106.59 EBC CX Extreme SS: $107 Do any of you have any suggestions or opinions regarding reliability/quality, weight, durability, performance (especially with only sintered pads for all conditions), etc.? Is it worthwhile to also get a set of carbon pads for dry, hot conditions? Thanks.
  20. This noise is really bothering me. I want to know if it's something to worry about or not. I checked my valves they are in spec. Please Help!
  21. throttle127

    Kx250f vs yz250f?!

    I was wondering which bike is better. I have heard many things about both bikes, good and bad. I will be using it for track and trails.
  22. Torrac

    Batteries

    Just in case anyone was wondering. Factory battery vs Shorai lithium for yz250fx
  23. Hey TT, newer member here. I’ve had a 2006 YZ250F that runs great and is a good bike with about 16 hours on the piston and valves now (bought it with 8). It’s a great bike and it’s perfect for me weight and power wise but i was worried about it once i start racking up hours. I plan on oil changes every 10 hours but I wanted to eventually get rid of it before it needs a rebuild and get a 450 because I read somewhere these will only go to about 50-60 hours before needing a rebuild. I lightly trail ride and do no racing and wanted to know what the longevity of this bike would be with basic oil changes and air filter cleaning?
  24. I ride a 07 WR250f. I'm considering reworking my front forks. The forks were last reworked 5-6 years ago. Since then the bike had been through 25-30 Harescramles, 40-50 half day trail rides, and 2 sets of seal savers. I've never had a leaking seal. Am I crazy for thinking about fixing what isn't broke? I have replaces seals only to have them blow again just a few rides later. What do you guys think? Ride On!
  25. I was wondering what the diffrents between a 18” rear rim vs 19” rear rim beside the sizes . Im looking at getting a rear rim off a 2010 yz250f and I have a 2005 yz250f. The 2010 haves a 18” rear rim . My bike has a 19” rear rim so I was wondering if that 18” is going to work on my bike . I know it’s a tenderfoot question but I’m new to dirtbikes
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