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Found 29 results

  1. Drzjosh125

    Yz85 leaks oil, help!!???

    My 2006 yz85 leaks oil when I crank it up and leaks while I’m riding and after I get done until it eventually stops. It’s NOT the clutch cover gasket it’s the gasket behind that (crankcase cover gasket). It drips substantially (a drop every 30 seconds while turned on, and slowly deteriorates after I turn it off. Is it an easy fix to replace that gasket and is there any way to seal the leak without a new gasket?(although I may get a new one anyways.)
  2. Drewboroce

    Ssr 125 oil leak

    I have a new 2018 ssr 125 and I have a small oil leak near my shifter and kick stand I don’t know where it’s coming from the but I just also noticed my crankcase vent hose is split in half all the way down the middle
  3. Hi all. Just picked up a 2001 RM250 and noticed it has a very slow (for now!) oil leak coming from around the clutch cover, with a couple cover bolts in particular seeming to be the source, determined after cleaning up and watching/waiting. I'd like to think this can be easily remedied by: 1) Removing the clutch cover (after draining the oil OR perhaps just putting the bike on its side since oil was just recently changed). 2) Replacing the gasket/o-ring with a new one (why not---they're only about 7 bucks) and greasing it ("A" grease) 3) Reinstall clutch cover, torquing all 6 bolts down to exact specs (8 lb-ft per manual). Just seeking validation on this approach/opinions since I'm a mechanical hack at best who is new to 2 strokes. Hopefully this will be the fix and an easy one at that?
  4. Hi everyone, So, I let my bike set for a year and decided that I should probably fire it up to make sure everthing works. Fresh gas and fire right up. Everything was great until I noticed a bit of gas leaking from the Keihin FCR 39mm flat slide carb. Gas was coming from the bowl gasket? The Bike idled perfect, so I am not sure if there is an internal issue. Anyone have any advice on the next steps and what I should look for? I feel like if I just replaced the gasket I would be masking the problem? Thank you in advance!
  5. I've got a leaking radiator hose on my 1997 Honda CR125R. Could I just swap it out for a piece of garden hose and continue riding for a few hours? My bike isn't here right now, so does anyone know the typical ID of those hoses? I figure the coolant gets to about 200 degrees F, so would a garden hose stand up to those temps?
  6. Hi all, I've had a gasket perish on the stator cover of my KTM 625 LC4. I originally thought it was the small starter cover above (to the left in the photograph), but now the rubber seal on this has been replaced, I'm sure it can't be this. The image I've attached also shows that the stator cover gasket looks tired, it looks shrunken into the cover and darker where the oil seems to have soaked it. My question is, can the replacement of the cover gasket be done without dropping the oil? Someone with an RC8 has stated that it doesn't need a full oil drain for this... But that's a different bike. Additionally, does the gasket need preparing with any type of sealant? Last of all, many have said that the paper gaskets have a pretty limited lifespan, is there a different type of replacement gasket I should be using that will last more indefinitely? The leak is currently pretty minimal, I'm assuming I have a couple of rides left in it before it becomes more urgent. I do want to address it soon though as anything leaking drives me bat shi- You lot know I'm sure. Image references (blue is wind, shows where it has blown oil onto starter cover and bolt head, orange is line of gasket reference, black is the suspect leak location (dirtier and gasket shrunken, looks soaked in oil). Yellow shows where oil has travelled). Cheers Wilbert
  7. Bike is a 1999 Suzuki RM125. I had the crankshaft rebuilt, so during the install I had put in new crank bearings, new crank seals, new case gasket, new reeds, and a new top end. I also cleaned the carb and put in the recommended jets for my exhaust and elevation/temperature. I run 32:1 fuel mix. I also put in a new primary gear, which is what contacts the oil seal. I put axle grease into the seal before inserting the primary gear. The bike smokes more than it should, and I'm pretty sure the cause is that transmission oil is leaking into the crankshaft area and eventually getting into the cylinder. I would top off the oil and check the level with the little bolt on the side of the clutch cover. After a while of riding I would take the bolt out and I would have to tip the bike quite a bit for anything to come out. I don't understand why it could leak. I also topped off the coolant, and the level stayed the same, so that's not leaking. Do you think its still getting in through the seal? If not, where could it get in from? There was quite a discussion as to the orientation of the seal itself here, but since that post I have installed a new seal with spring side out (which is different than most bikes, but I think that's what the manual says).
  8. Hey all, Just installed my yoshimura rs2 full system and have been having alot of backfire on deceleration and engine breaking. The bike has a 3*3 mod and jd jetting. The kit says to use the 165 vs the 155 if you have full exhaust. Could the issue be having the 155 installed and not the 165? Or could it be a header leak. It looks like the flange on one side is just barely not flush but it will not tighten anymore than it already is. If you think it is a header leak what is an easy way to test that? Im thinking its the jetting, but thats just my amateur opinion. Any thougts?
  9. ceckert98

    rm250 leaking gas help

    Hello i recently took the advice of a member on here on how to get my bike running after going through deep water. there advice was to take the gas tank and spark plug off then flip the bike upside down and hand pump the kick starter till no more water came out. I did this and no water came out so I put it back together and went to start it but when i turned on the gas it started leaking out of all the hoses. thank you for any help!
  10. I just recently re-installed my White Bros exhaust system on my 2001 Wr250f. It's a two piece (header and muffler). I installed the header, then slipped on the muffler. The muffler fit very loose around the header where they meet. I tried angling the header and muffler at all different angles, yet still very loose. So I went ahead and used some high temp gasket maker, which failed the first ride. Am I missing a gasket or spacer of some sort? If I push the muffler into the header and extra 1/4 inch it fits air tight, but then I cannot bolt the muffler into the mounting brackets. Any help or suggestions would be greatly appreciated. Thanks.
  11. I noticed on my DRZ this carb nipple isn't connected to anything and it spurts fuel every time I twist the throttle, even with the engine off. It's a Kehin FCR carb from the enduro model. Photo here The bike runs mostly okay but I'm having a possibly-related problem where the engine cuts out when I blip the throttle, especially at low revs. I wondered if this carb port had something to do with it, since it's connected to the accelerator pump (which would explain why I can't blip it). Can anyone tell me what the port is for and why it's squirting petrol? Any help appreciated.
  12. hey all, noticed gear oil leaking from the left side cover. pulled the cover off and see oil coming from the hole underneath the flywheel. checked again by leaning the bike to the left, and sure enough, it is definitely gear oil. not sure where to start? is it the left crank seal, clutch actuator arm shaft seal? was gonna ride it today, but not sure if the leak would cause major issues. i have attached a picture, which i found here on the forum, thanks!
  13. I noticed some oily residue on the bottom of my case below my water pump, checked coolant level and it was just as It was when I refilled it last. I followed it as best as I could and it appears to be coming from the rubber gasket on the bottom on the power valve what does this indicate??? Again it's a very slow leak nothing is dripping I just noticed oily residue.
  14. Korptys3

    2009 CRF450R Case Leak

    I’m new to this forum, I recently bought a 2009 CRF450R. The bike is in reasonably good condition, and supposedly has around 30 hours on an engine rebuild. While the bike is running there seems to be coolant very slowly seeping it’s way out between the left side case cover, and the engine. At the top, right by the head (not from the head). Now my first thought would be to take off the left side case cover, and ispect the gasket and surfaces. However this is my first 4-stroke and my big question is, why is there coolant there at all? As I said all I’ve had in the past are two-strokes so any input from you four-stroke guys is much appreciated.
  15. I have noticed an oil leak on my 2009 DRZ400. Please bare with me as I'm new to this. Ive traced the oil to what I can see is the highest point where the trail begins but don't know what the part is or linked to. Has anyone had this problem? know what part the pipe leads to, or know if its a possible cracked pipe? Thanks, Jake.
  16. Working on my buddy’s 2017 Ktm 250xc-f. With 67 hrs on it. For a while now we’ve been smelling coolant . We saw a drip near hoses above exhaust. So we tighten up or replaced anything that looked bad. .. just last night he started it and we smelled again so we looked closely and noticed it leaking from the valve cover gasket . I pulled the cover and there was traces of coolant all around cams and can caps. Not leaking bad enough to make oil milky though or doesn’t look very low in rads after 1 ride. I was assuming head gasket so we tore it down but I’m now seeing any imperfections that stand out. Anyone got any ideas ???
  17. bws678

    Left Side Spraying Oil

    Hello, this is my first post on these forums. I have been reading some posts to try to learn about common problems with my motorcycle. There are a great many dead threads, but there are also several very helpful people who put up guides to do stuff. Okay, here we go. I have a 2004 XR650L with about 10k miles. I have about 200 miles on the new top end, and things are looking good. I have yet to check valve clearances and I think my cam chain is loose, but none of that matters unless I can get this bike to stop dumping oil. When I first got it, the previous owner told me that the oil should be checked while running and with the dipstick screwed in. I trusted this against my better judgment, figuring that the bike was just quirky. Well, there was understandably never any oil on the stick unless running, and the short story is that the bike burned up and I replaced most of the top end. Now, I check the bike just like my car and everything goes 100% smoothly. I don't know if I am just lucky or stupid, but the bike shows proper oil level if checked exactly as the book says. I rode about 100 miles yesterday. The first 100, the bike didn't leak a single drop of oil, but yesterday it started leaking. I was riding between 5 and 15 miles between stops, and by the end of the day, about 12oz of oil was missing. I checked the spot it was leaking from when I first got it, and I found that it was spraying oil from underneath where the starter goes into the starter gear cover. I thought at first it was the side cover gasket, but after putting RTV black around the top of it with no good results, I have decided that it is most likely spraying from the starter O-Ring. My questions: Should there be so much pressure that the oil is spraying out of the O-Ring? If so, is there a strategy to smush the starter in and get a good seal? I feel like just getting out some more RTV and sealing with that instead. Thanks!
  18. Jeremy Putnam

    Leaking Air Valve From Base

    Hey all, just got a DRZ-400 yesterday and absolutely love it. Today I took it out for a ride and when I got back I noticed the tire was leaking from the valve. I looked on the other posts here about leaking valve stems but all of their leaks are coming from the top. The leak on mine is coming from where the stem meets the rim right under the nut. Can I put sealant there to patch the leak? Or what can I do to fix it? Thanks!
  19. KTM 250sx leaks a large amount of oil or splooge from the exhaust where the exhaust connects to the muffler or the head and some leaks from the large exhaust piece that 2 strokes have, idk what it's called exactly, sorry. I believe it's an exhaust leak making it leak from those places, but I'm only worried about if it is bad for the bike to leak like that. Is it supposed to leak that much? I don't have much experience with 2 strokes, and I want to know if it is okay for the bike to stay leaking that much and through the exhaust like that? I will eventually seal it, but it is significantly more than my kx100 did, which I would expect obviously. Ik 2 strokes are supposed to do this, and the guy I got it from knows a lot about bikes, especially 2 strokes, and he said that is okay, just want to make sure.
  20. Hello. My CRF450R 2011 have leaking (oil with coolant) from water pump drainage hole: I install new mechanical seal (7), oil seal (16) and new bearing (15): Filled new coolant and run my bike, all was fine, but after 15 minutes I got heavy coolant leaking: Disassembled again and noticed that "head" of mechanical seal is disconnected: What's can be wrong? Looks like problem with slight tightening (torque) (12 N/m) of impeller (part #6)? Sorry for my bad English.
  21. 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.
  22. Hi guys. First post here after lurking for a while My front sprocket is leaking. I've read all about the locktite fix. I have yet not done anything. I don't have a 30mm top (arrives tomorrow), so I haven't been able to verify if the sprocket bolt can be tightened. But it is not "finger loose" at least. I am ordering new seal, o-ring, spacer and screws. Now to the question: I have some off-road training coming up tomorrow and a 200km gravel trip on Sunday. Parts won't arrive before next week. If I verify that the bolt holding the sprocket is not loose - and hence the leak must be due to seal/o-ring failure - how slow/fast will it usually develop from here? Right now it is a few drops after turning off a warm engine. Think it will only worsen slowly or can it suddenly start pissing oil all-over? Thanks in advance, Denmark
  23. Hey all, New ktm owner as of Friday- '16 xcf-w 350 w/ 13 hours. (First real dirtbike too!) To the point- rode it about 30 minutes Sat and 15 minutes Sunday. After each ride (on the next day) several drops of oil were discovered below the engine (dripped from engine case near oil plug due to lean of bike). Bottom of engine revealed gouges from PO riding w/out skid plate. I think the centerline gasket may be leaking laterally to the oil plug. After cleaning well and idling bike for 10 minutes, I could feel faint oil at the gasket while everything else is dry. But I didnt feel it til an hour or so later. Btw, There seems to be too much oil in engine- 5-10 minutes after shutting engine down, oil level was high in sightglass. Seller said bike had just been serviced but couldnt say what all was done. He likes his toys; doesnt work on them at all. Bike looked awesome in the dimly lit garage of seller- shouldve noticed oil level was off and the gouges under engine. Bike looked really good. Oil leak from bash or what? Thanks for any help, John
  24. Alright guys, my 04 YZ450f runs fine minus some slight backfires when decelerating (need to adjust fuel screw). The other day when I was done checking my valve clearances I changed the oil and filter and put the bike back on the stand, kicked it a few times without the ignition coil in to get some oil flowing got off and noticed a little drip spot on the ground, it was no bigger than a dime so I thought nothing of it. Started the bike with no issues took it for a quick 10-15 min ride, came back to the garage to find out my whole case was soaked with oil and it started pooling in the low spots on the clutch basket side. I cleaned all the oil off and took it out again for 5 mins to try and see where it was coming from, here are my three possible places but nothing directly leads me to believe it’s any of the three either. 1. Decompression plug area 2. Valve cover gasket leak (not really sure because the amount of oil leaking Looks to be a large amount 3. Oil tank (bad weld or cracked weld somewhere what are you guys thinking?
  25. Zach7018

    Coolant drip help!

    I recently bought a 2002 YZ125. I just rebuilt the top end and took it out on the first ride. When I got to the trails and went to unload my bike I noticed some drops on coolant on the bed of my truck and a little bit on the frame.(the bike had not been run at all that day). When I started riding I would check every couple of minutes and noticed it was still happening. just a couple of drips a minute coming from the bleeder hose that runs from the top of the radiator. After a little while I stopped and let the bike cool and checked the coolant level to make sure I wasn't losing too much. After checking I went back to riding and it seemed to have stopped so I figured maybe it just had something to do with the radiator cap and somehow taking it off and putting it back on had solved the problem. However today I had the bike in the bed of my truck and once again found coolant dripping from the bleeder line coming from the top of the radiator(bike had not been running). Has anyone else had this happen? Is it a problem? If so how much is it going to cost