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Found 16 results

  1. So I have an 07 cr 125 fouling plugs before the bike even has a chance to warm up, plugs come out wet and oily on the tip. had both crank seals replaced last season because my main drive side seal blew. While it was split I had a new crank put in, we noticed my cylinder plating was pooched so I sent my cylinder off to be re-plated, put a new piston in the shiny new looking cylinder put the old warped head back on and called it a day. then rode it all season having absolutely no idea about the warped head because I overlooked it when I was excited to put my bike back together and ride. Its now winter, snows on the ground. I recently went to go for a put and fouled a plug before I could get to the end of the street and back. I was also smelling coolant so checked the rad while running the bike, lots of movement and tiny bubbes. Pulled the head off and sure enough it was warped to the point where I could rock it back amd fourth on the mirror and see a small gap... so NOW after I replaced the head my problems persisted and I can still see little bubbles swirling around vigorously in the rad if I rev it with the cap off, I've had boiled it down to my cylinder probably being warped then I found a leaky hose by the exhaust that was dripping coolant onto the outside of the exhaust port. Which brings me to what I think may be an incredibly stupid question, could it just be the loose hose sucking in air that is causing my rad fluid to have small bubbles in it? And maybe im just experiencing increadibly rich jetting now that my head is actually sealed properly? over and out.
  2. Previous owner used some sort of nasty sealer on 2000 KTM 125 headgasket. Razor blade would not touch it beyond this. I had 2 headgaskets out of 5 heads that were stuck this bad. Suggestions?
  3. mcnally21

    Clutch

    I have a 2014 kx250f and I will be stopped and when I go to take off I let out the clutch and it is really jumpy. And every once in a while It almost feels like a grind in the clutch before Im about to take off like when the clutch engages. I think it is the clutch plates and fibers that I could need replaced and I called my near by motorcycle dealer and asked and he said it might be a clutch basket. Any ideas? Clutch basket is about 200$ vs Plates and fibers with heavy duty springs are 60$ on rocky mountain.
  4. 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).
  5. 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
  6. ashfmxuk

    Rocker gasket

    Can you remove the cylinder without replacing a brand new rocker gasket? I recently installed a new rocker gasket when doing the top end on my cr250r I new down pin was coroded but did not have any spare “shameful” I tightened it all up and started the bike once.
  7. crfjunky1320

    Oil puddles in valve cover?

    Hey guys, just curious as i recently bought an older crf450 and I am doing my first valve replacement myself and as I pulled off the valve cover there was a large pool of oil around the springs. Spark plug is dry. Is oil in the valve cover normal? Trying to find any extra parts I might need to replace while I have the top end torn apart. Thanks!
  8. Drewboroce

    Can’t find a gasket for ssr 125

    Can’t find Ignition / sprocket side cover gasket I’ve looked and looked but can’t find one that looks like this I’ll post a pic it’s ripped tho that’s why I need a new one
  9. 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
  10. Before I put my 05 CRF250R away for the winter it was running weird. I noticed it was leaking oil out of the engine cover. It was understandable because i had just put a new stator in. The bike had been running oddly for some time before i realized it was leaking. I just took the bike out for the spring and now it doesn't even start. I bought a new engine gasket to try to fix the leak. I am currently installing it. I am wondering if the low compression could've messed up the top end? I rode it with low compression for about three weeks before it started to bog so bag i couldn't ride it anymore. Will replacing the seal fix my issue or have i created a whole new one?
  11. So, I have a 1998 Yamaha yz80, and it's had a lot of hours on the top end, so it's time for a rebuild. I have a neighbor who is going to help me with it, so i havent taken it apart yet. I'm trying to figure if my bike needs a whole new piston kit, or a gasket kit, or does it need new reeds? So its lost compression. Way less then what it used to be before. The bike is really hard to start, and it fouls my plugs like none other. It doesen't have too much of a power loss, although, the powerband has become weaker. I just want my bike to be running like how it used to be, and I don't want to spend a lot of money on it. It will start sometimes, but most of the time, it will only bumpstart. I appreciate you viewing this, now, so let me know of what I need.
  12. 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.
  13. Sideburns448

    Big Bore Head Gasket Same As Stock?

    I installed a Cylinder Works 434cc kit a while back that came with all necessary gaskets. I'm now having some head work done and need to replace gaskets. Is the big bore head gasket different from the stock head gasket? What ways can you measure them to know?
  14. Staucher

    Exhaust gasket cr125

    Hey I had an exhaust leak where my expansion chamber slips on the manifold on my 97 cr125. so I installed new studs and nuts and bought 2 new seals for the manifold as I pulled two off. I was wondering how many seals are actually supposed to be on the manifold before I put it back together? On manual diagram they show a seal but not how many. There were two on there when I pulled it apart (one on the bottom and one on top of that one)The bottom one is worn i have two new ones just incase and also bought versa Chem exhaust joint and crack sealer (high temp) to make sure nothing gets by ! Any help or suggestions would be appreciated! Thanks
  15. Alright, so I just got done rebuilding the top end on my 07 KX 450F and as I am getting ready to install the top of the cylinder head I notice I have one last piece remaining that I can't account for. I mark everything and take several pictures so I can make sure everything is put back together perfectly, but somehow this piece evaded me. I showed where I think it goes in one of the pictures I provided. Can someone tell me if I am right or if this piece goes somewhere completely different?
  16. ClutchinChrisG

    slant FCR mid-body gasket replacement

    I've decided to attempt the mid-body gasket replacement on my vintage 2000 slant FCR carb, stock on the DRZ 400 E. If you are like me you have scoured the forums for info on doing this service but found maybe 2 or 3 pictures of a taken apart FCR, dead end threads, and tons of negativity. BUT! Is it really that difficult of a repair to perform correctly? Well I have had my carb on and off at least a dozen times, trying different jets, cleaning, etc. For the last 3 years I've been getting by with the coast enrichener circuit bypassed to at least get enough fuel in the idle circuit to run ok. But it just wasn't working anymore. I could clean the carb out and get it to run for a little while, but after sitting it wouldn't start again. I tried ordering a refurb FCR-MX over a week ago and the guy has gone MIA and nothing shipped. I ordered from keihin-fcr.com. I would advise avoiding... But will update if I hear back and he has a decent reason for the delay. Anyways, it made me seriously look into the "unserviceable" midbody gasket. I mean, you can buy the gasket here: https://www.ebay.com/i/401380298480?chn=ps So today I ripped the carb apart again, but this time to the very last fastener, separating the carb bodies. I even found my smoking gun, in the one picture with the hoop thingy removed you can see the gasket has expanded and spilled into a passageway. This passageway leads directly to the pilot jet, blocking it's flow. Though as you can see every rubber piece inside is completely trashed. Which makes sense, do you really expect these gaskets to last 20 years? Or in this case 18? If you have taken apart your FCR and went, wow that fuel bowl gasket is recked yo! I need a new one! Well you can bet your mid-body gasket looks the same. Really I see no reason I couldn't get this sealed back up with a new gasket and some fuel-proof RTV to replace the epoxy seal around the edge. Why wouldn't it work? Just doesn't make sense to me all the negativity you find toward this repair.... But I haven't finished yet so who knows if it will actually work on the bike. But I think it'll run like new when I'm done. I hope it works out for me and I can inspire some others who would otherwise be forced to buy an 800 dollar carb to do this repair instead. Wish me luck!
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