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Found 15 results

  1. So i bought a 1992 rm125 about 1 week ago and it ran fine! i got it home and rode it for about 3 days, then after i let it cool down for about 20 minuets it would not start! I checked for spark, and for some reason, there was no spark. I bought a new ngk plug, and still nothing! I went through all the usual stuff, and still nothing! I bought a new stater, put it on, and now it will bump start, but not start using the kick starter. ( the kick starter is 100% good ) I think it may be the ignition coil, but i am not 100% sure. Any ideas?
  2. I am 14 years old and am looking for a bike I am 5,0-5,1 I have a friend with an 07 yz 85 who is looking to sell it to me but I am worried about how it handles and its seat height. maybe a kawasaki honda suzuki or ktm I am also looking at the crf 150r. I want to do some racing and trail riding. I currently Ride a xr100 and love the way it handles on the track and on trails but it lacks a little power. any ideas thanks
  3. My sons Rm85 is pouring out petrol all of a sudden. He thinks it's something to do with the jet. I know nothing about bikes and he is only 13 and isn't experienced enough to be taking it apart but I was just wondering if anyone could advise me what I should do?. Also I've noticed he never puts coolant in the water tank and just wanted to know if this is important and would have an effect on its performace? Any advice would be appreciated. Thanks ?
  4. My son's rm 85cc, according to the plug I think it's jetted pretty good at factory specs, however it doesn't have the low end power I think it should have. Once it opens up it's a lil beast. What should/can I change to get some more bottom end!
  5. Hi guys, my friend is selling his 2007 RM85 for $500 right now and I need to hear more opinions on if it is worth it or not. I believe that it has a blown top end, the forks are out of oil, radiators have no fluids, and its overall a kind of ratty bike. I want to buy it from him and do a top end, clean it up, re-do the fork seals and fill the forks up, and just rebuild it in general. Is this worth the $500? I do NOT want to have to replate this thing or do a bottom end. I want to fix it up and make money. Is it worth it?
  6. Hi, I have an issue with my RM 85... I bought it a couple months ago and am having a problem. For the most part my bike will run just fine. But once in awhile I will let off the throttle and the rpms will hang for a few seconds then drop back down. I know for a fact my bike is running pretty rich so it definitely isn't a lean condition. I know it isn't just me whiskey throttling because I will completely let off and it will still hang for a couple of seconds. This may be a carburetor problem or cable problem I don't know. I turned the handlebars both ways and I don't hear the rpms go up. Please help me because I have no idea what it truly is. And just to restate, it will only do this very rarely, like once a ride but it usually is fine. Thank you for any help.
  7. I have a Suzuki rm85 it has a fresh rebuild hasn't even been ride yet it starts and kinda idles but if you try to rev it , it kinda bogs and hesitates then revs up , and still does not run completely right when it is revved up , it is not the carb because we switched it out with a kx85 carb that runs perfectly and it still did the same thing didn't even slightly change
  8. Here's the deal, my son(11) has been riding for 4 years however he always seems to do a weird foot out, toe in shift to go, back when I started we wore anything that was called a boot! Are these kids boots to stiff for an average kid to get his toe under to shift, anyone else see this, I've moved shifter up a notch with no help! As I said he is 11 but where's size 8
  9. My son's Rm85 has new top end, everything cleaned and to factory spec as per book except a FMF shorty silencer 1) seems slow to hit powerband, however I'm 180# so maybe weight matters but once it opens the front end comes up in 3 gears! 2) idle fluctuates up and down a little and I mean a little but none the less it shouldn't so maybe there tied together Thanks. P.s. it's an 08 85cc
  10. I was wondering if anyone could help me.. I bought a RM85 a few months back and ever since i bought the bike its always run like crap, i Thought it was the reeds so replaced the full lot with VForce 3 Reeds, Bike runs good when moving but when idling it sounds rough and sometimes idles high, Also smells of petrol really bad like its not being used and then oil dripping from flow pipe and plugs oily. Running 125 Main #50 pilot 2 turns on air and 1 and half on idle. 2nd Clip from top. Any ideas people?
  11. I'm contemplating a fork swap - the RM85 USD forks to an XR150 (Sold as Hero Implulse in India). I know there are multiple factors to consider and one answer I'm not finding is the length of the neck stem where the triple tree's center arm is inserted into the frame. I'm looking for the following information... 1. Length from top to bottom of the neck stem on the chassis/frame 2. Length between the top-plate and bottom-plate of the RM85 Triple Tree (where the bearings are flushed into the frame) 3. The tolerance the triple tree has to be moved around on the fork stem (considering the BW & SW triple tree positions are different) Cheers!
  12. I am 14 years old and am looking for a bike I am 5,0-5,1 I have a friend with an 07 yz 85 who is looking to sell it to me but I am worried about how it handles and its seat height. maybe a kawasaki honda suzuki or ktm I am also looking at the crf 150r. I want to do some racing and trail riding. I currently Ride a xr100 and love the way it handles on the track and on trails but it lacks a little power. any ideas thanks
  13. Can anybody help with some information on a PR2 build cost? Long story short, bought a used RM85L that had a ton of work done. Full PR2 Suspension, PC pipe, assortment of anodized fasteners and brackets... But the one thing I can't find a price on, nor can my local shop, is how much the engine will cost to be repaired back to it's pre-theft condition. It is an RM112 Works Stroker Motor from PR2 Racing. The police need a quote and the PR2 website doesn't have anything set in stone. Have any of you recently purchased this package from PR2, and if so, could you tell me the cost before tax? When the bike was stolen, I had just removed the gas tank and top end to replace the piston and ring. This was late 2016. Jeff had corresponded with me at that point, and after inspection of all parts, he said the piston looked ok so just buy a ring. Whoever had stolen the bike also stole the box of parts sitting next to it (but they forgot to grab the gas tank and frankensteined an older one on LOL), and put everything back together. In doing so, they put too long of a bolt in the power valve cover, cracking a small part of the cylinder, left a large amount of dirt and debris in the bottom end, only torqued 3 out of the 4 base nuts, improperly torqued the head (pr2 super coolhead) leading to combustion gasses leaking into the coolant passages, and made numerous other smaller careless mistakes. Thanks for any help!
  14. So I am rebuilding my 2007 rm 85 I rode it for a good 8 hours and started noticing low compression so I'm like I going to rebuild this bike so I start remember this is my first time rebuilding anything I follow instructions , finish and I fill it up with coolant and it's leaking so bought new gaskets redid all gaskets and a kick it and it runs but one problem there's compression but not a lot and there less power please help?!
  15. I recently bought a broken kx100 that suposedly only needed a kick start gear. So i bought a parts engine and replaced the lower unit with a working one and did a top end rebuild. It put it partially back together following all torque requirements and tried starting it. i tried kicking it but the kick start will engage but wont return back up after i kick it. So i decided to bump start it (with the original gas it came with, idk if its bad or not). After giving up on kick starting i bump started it, this after a while made it start up and run crappy a few times. But every time it would start after 1 minute it would die and come to a complete stop. The piston would not move in gear when i would pushed the bike. So i took off the flywheel housing and spun it from there, once i did that the piston freed up would move when in gear. and also would start and move for only a minute and then return to doing the same thing. It seems like the engine internals are binding up on something or something is not in there properly. Anyone had a simular problem as me? this is driving me nuts because i have alot of money in the bike and it starts bud doesnt run correctly
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