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Found 383 results

  1. Okay so to start off i know for a fact that it is a carby issue. Basically i have a 1995 Kawasaki Kx100 2 stroke, and its never ever had a single issue for the time that i've owned it which is over a year. Recently with the weather becoming colder approaching winter in Australia, the bikes been really really un-happy. First i noticed that is wouldnt start like it used to so i was like no issues, probably just the colder weather, then while riding it i realized it would bog out at full throttle, like a blubwubwubwub kinda bog. After a bit of tinkering i cleaned out the carb and stuff and tried to tune it, i came accross a different issue, now basically when im riding and i get to like 4th gear, all the sudden the bike will rev out really high and ill loose all power. Then i upshift into 5th and it will be good for a second then rev out and i loose power again. Ive checked everywhere for air leaks and all that and i cant find any. is my air adjustment screw letting in too much air? and in the case of the bog at full throttle should i maybe go down a size on the main jet. Lastly theres another issue lol. when i start it it will idle for a second and then rev its guts out. Please help me, next step is to get a brand new carb i think.
  2. Jesse T. Groth-kennard

    2stroke kx250 brakes

    so im rebuilding my bike again as you can see in the before and now pics, im a creature of habit and when i ride i mostly use the front brake because of years on a street bike, im thinking i want to tie the front and rear brake both to the front brake handle and still have the separate rear pedal just like on my 2014 artic cat 4x4 atv, and if it is possible to do by stacking the banjo fittings or would i need a brake bias to make it work rite, if so any ideas on this ridiculous idea?
  3. Duncan Suttil

    2stroke yz250x noise at 5,000 rpm

    Hello all I've been trying to find this out for a while but i haven't been able. im trying to make a 2 stroke road legal but i can't find any easy way to see how much noise the yz250x puts out at 5,000 rpm the road rules say that it has to be below 95dba to be road legal in that aspect so just seeing if anyone knows.
  4. Omer Aviani

    2stroke KTM sx150 or sx125 ???

    Hey so I’ve decided I want to move up from my crf150rb to a new 2 stroke and one problem I’ve had is deciding whether if I should get the ktm 150 or 125 and which is better for me I’ve listed my size and experience below and I’d love if you’d help me with my decision I’m 15 yrs old weight around 140 and 5’8 not much 2 stroke experience it will take time to get used to I’ve been riding for around 2.5 years now and I want a bike that’ll have good low end top end so I can learn and get used to the bike and I want to pick the best one for me either then sx125 or sx150 leave your opinions below thanks!
  5. I recently bought a yz85 in great condition it just needed some carburetor work (the float needle did not seat properly). Now that that's fixed, I have a question. The bike is an '06 and the owner said "yeah it's still on the stock piston probably only has about a hundred hours on it" I cringed when he said this. But, nevertheless, I took a test ride and decided to buy the bike. When I kick it over, the compression is average for an 85 and it starts 2nd or 3rd kick cold and first kick warm. When riding it, there are no strange noises and I can hear no piston slap or anything out of the ordinary (listen to it in this video: https://www.youtube.com/watch?v=nx0VislGsg4&t=4s). I know a top end rebuild is a must on these 2 strokes so how has this bike lasted 12 years and still sounds like it's new? It doesn't bog, the only thing I have noticed is that it will hesitate while taking off sometimes when it's hot. I know I'm going to get the average "PUT A NEW TOP END IN IT NOW" 2 stroke guru, but is it really necessary? I have not taken the cylinder off yet but I put my finger over the spark plug hole and kicked it over and it has enough pressure to lift my finger but it's also really oily in there (oil ring left on my finger). So, what do you guys think? Does she got a few more hours or does it need a new piston ASAP?
  6. anthonyquags12

    Clutch problems

    Hey guys, jut did a bottom end on my 04 yz 250, and the clutch won't engage. What I mean by this is it will start in neutral, and once I drop it into first (with the ever pulled) it stalls out. When I depress my clutch lever the actuator is fully engaged, so I don't see that being the issue, I've read that sometimes after you take out or put in clutch plates they stick because oil hasn't flowed through the plates all the way yet. I'm at a loss, any help is appreciated! Thanks in advance
  7. ThrottleTwistFilms

    Exploring Trails

    Made a little video of me riding some new trails we discovered, I had no clue where I was going. But I found out a way to ride a pretty fun loop to practice for woods races on. Check the video out, feedback is appreciated
  8. I’ll be moving to Oceanside, CA area fairly soon. I’m looking for trail riding spots that have awesome views along with some gnarly terrain. Willing to travel 3-4 hours if the spot is worth it.
  9. Sorry for lots of pictures, but is this piston still usable?
  10. Tnewsome525

    YZ125 cdi problems?

    I have a 2006 YZ125 that I bought new back in 06, I have went through the whole bike recently and everything is in good shape. Checked all the electrical system and it is up to spec. cleaned the carb spotless inside and out. Stock jetting always worked fine where I live. So for about 4 years now I haven’t ridden the bike but a few times and now I noticed that the bike isn’t running right when you snap the throttle it hesitates too long and just doesn’t have the throttle response it had before. Also when I looked at the head it was pitted some from detonation. I have read in here that a few people have had cdi trouble on the YZ125 and 250, if you have can you share your expirence of a bad cdi with me? I’m hesitant about buying one cause you can’t return electronics even if they are faulty also if anybody has a cdi box 2005-18 they would sell let me know, thanks
  11. Okay i have a 1994 KTM 250 EXC my clutch works perfect when shifting but if the bike is stationary and off when I am in gear and pull the clutch the bike won't move it works fine when it is running but if I went to bump start it or even just push it around without having to be in nuteral it won't work any suggestions?
  12. In advance of getting my first 2-stroke , a 2000 YZ125 off the bench I'm watching a lot of videos of two-strokes trying to get a sense of how they are ridden. One thing I've noticed is that riders blip the throttles is a way that seems to be unique to 2-strokes; they rotate the throttle then open their hands letting it snap back by itself. I've never seen this done on 4-strokes. Why is it done on 2-strokes?
  13. Thtyzguy

    Getting rid of spray paint

    When I bought my bike from my previous owner he had to horrible spray paint job on it, i'm just starting to get around to it and i really dont wanna take the engine out to repaint it (there is also remains of paint the the engine cover that I want to get off). Its a steel frame yz125 and i was wondering if anyone can help me get rid of the because if I take the engine out it will never go back in. Thanks
  14. Just wanted to share a video I saw recently of some guys riding their two strokes. Videos like this help me get through the winter haha!
  15. My Old/New 2008 KTM XCW 250. I knew I wanted a KTM.Knew one day I would have one,just didnt know which one.So I decided to let fate decide.So I placed a KTM sticker on the window of my truck and just knew one day I would come across what I was suppose to have,no matter the condition.I have my own A.C. business, and had a call to a Memphis radio personalities home one day.She sees the KTM sticker,says hey,my brother rides that kind and is selling one,my spidey sense kicks in,I say oh yeah?She says yepp,Ill call him to see if he has it,I know its on craigslist.I went to craigslist and there she was,in all her beaten down glory,good god all mighty,she was whooped on.I get it for $1200,knowing the suspension is shot,the E start,will not start,but she fires every time from the hip.I knew nothing about these xcw bikes,so I took her on home. I rode it for a few hours to feel her character then knew exactly what I would do.See,she was down on power and didnt like to get up and go,me weighing 220 didnt help out im sure.I had a challenge ahead of me.Here is what I did......I took it down to a pile of nothing and restored it Powdered the frame PPG white,The swing arm black,sub frame black.All parts are new,Factory KTM bearing in all areas,KTM wire harness,Rekluse Z Start Pro,Wiseco billet clutch basket,Lectron HV Carb,S3 Slavens High Compression head,SX CDI box,2011 model Translucent tank,Plastics including new airbox and 2017 front fender and plate,Moto Seat,Front Suspension by Zip Ty Racing with Gold anodizing of forks by Ty,Rear Nitro bladder and builld by KTM world,Chain and sprockets,wheels and tires,tubes,rear tail light,FMF fatty,power core,VForce 4 reeds.Lithium 130cca battery,all new updated 2016 xcw E start components,7602 racing clutch cover,ims pegs.All gaskets by Cometic.New starter and kill switch,new speedo lens.All nits and bolts are new factory ktm,even engine mount bolts.I know im leaving something out....I rebuilt this bike to how I envisioned it to perform with all the components combined,working together to enhance one another and it does perform. You can see black and orange,the day I got it home.Then the new,white frame and black powdered coated swing arm and sub frame.Then various money shots,but not all of the parts to the go fast puzzle.Finally the finished product.The condition of the bike is,the only things not being brand new would be the triple clamps,bottom end,rotors and radiators.Everything else is new.KTM world rebuilt the entire engine 75 hours ago per the receipts I have,which total over 2K.The bike runs so perfectly,it is just what I had in mind. Thanks for looking! Nate Davis
  16. Kacer

    KTM 250XCW tail light

    Last weekend when I was riding through some trails, my bike decided to “take a walk” without me. I ended up breaking my rear brake light on my 2016 XCW and can’t seem to find a replacement for the light alone. My local dealer quoted me $125 to replace it but that’s a little insane for a simple light. Does anybody know where I can buy a replacement or one that would work with the existing wiring harness connector?
  17. So I’m pretty new to bikes and I got a 92 cr125r for a really good price cause they thought the stator was bad(it was the killswitch) and someone pulled the fuel line and all the carb vent hoses off at some point before I got the bike and I need help identifying what hose goes where on the stock carb
  18. Hey all, let me get right to the point, basically for the past couple years I've had this bike, it hasn't been running right. It tends to start well, and has a decent amount of power for a 200+ lb kid on it, but once I attempt to hit the top of the power band, it tends to cough and sputter like it's choking. When I recently checked to carb to jet it, I realized ALL but one of the Jets are missing. I've checked the reed valves, they seem to be in great shape... However, today (it is a warm day) it ran great for a while, after topping off the oil and running with the choke half on, this bike also leaks oil, but I'm almost convinced that this is a jetting issue (being that they're missing) at this point, but I've also never put a top end in this bike. Thanks for any help, I'd just like to get an opinion on what you guys think. I know I'm all over the place btw, sorry for that
  19. Hi guys, i have recently just bought a 2004 yamaha yz125, it has an athena 144cc big bore kit. The bike runs great! It has a loud knocking sound coming from top end but vibrates the clutch plate too. It speeds up when revved but goes quieter, also the sound dampens when the clutch is pulled in. The sound wasn't there when i bought the bike, then the knocking came after the second time of taking the bike out just up a lane. I have taken it out once to a proper track with this knocking sound and no problems or changes occured. By reading up it could be piston slap, but also many other problems. I don't know how long for sure the kit has been on the bike but the fella who i bought it from said "i think a year", but don't know of any care to the bike within that year because he was selling it for a friend. If any of you could help that would be great! And do i need to be majorly worried about this? Thanks
  20. meter86

    Lack of Power

    Hey everyone, I am new to the world of 2 strokes and I am having an issue with a 1996 CR250r that I recently acquired. To begin with the bike will bog down when I first hit the throttle and will do so again if I let it sit for a bit. However the problem goes away if I am constantly on and off the throttle. The larger issue however is that the bike seems like it is hitting a rev limiter at 3/4 throttle and the power is lacking for a bike this size. Id appreciate any help in trying to figure this out.
  21. Lachie Porter

    Rmx 250 speedo 1992

    Gday was Wondering if anyone knew what speedo goes on that mount and if they knew where I could buy it. I bought the bike with it missing. It would Be a digital speedo. cheers for help
  22. So picked up an 81 cr450R replaced clutch among other things, went thru and cleaned and jetted the carb but for some reason once I drop the choke the idle wants to climb almost immediately, have tried adjusting idle screw to no avail. Not really sure what else to check any and all ideas would be greatly appreciated
  23. QuinnEXC

    Running rich?

    Hello, I ride a 2002 ktm200exc and am having a couple of specific tuning problems. Before I get into that, I run 40:1 in the gas, my elevation is 5800', my main jet is a 170 and I believe my pilot is a 45. I'm running the blue needle from a JD Jetting kit, and I believe the clip is in the highest position but i'm not sure. My float is to spec. The first problem iv'e encountered is that the bike will not reach peak rpms until 4th gear. The second is that the spark plug is too dark and too much oil comes out of the exhaust. I'm not sure what to adjust since I already dropped the main from a 180 to a 170. Thanks, Quinn.
  24. kclark22

    2003 cr125 powervalve issues

    I just bought a 2003 cr125 and when i rode it for the first time it wasnt running right at all. It wouldnt hit the powerband in first or 2nd gear at all. The rpms would come up and then it would just sputter and fall flat. It sounded terrible and i didnt have a clue what was wrong with it. I read a little about it and decided to take a look inside. I took the cover off the right side where the powervalve is and it seems as if the arm isnt even connected. Can somebody please help me get this issue fixed. I need step by step instructions on how to remove and fix the powervalve. Ive owned 2 strokes before but ive never rebuilt one. Ive always had my dad there to help me and now that ive grown up, im on my own. Any help would be appreciated. I can also post pics if anyone needs to see what im talking about. Someone Please help me