Hey folks. My first question here. I have a 1989 CBR250R that I'm trying to get back up and running. Worked 6 months ago. After the run I changed the front brake handle which had its end broken off (from previous owner) and left it. I then came back last week after travelling and it doesn't want to run and the front brakes are jammed onto the disk. I could hardly move the thing and I was worried I would warp the disk. I had forgotted to put the bike in the garage for the 6 months due to my idiocy and it was subjected to the elements. Do I bleed the brakes to sort this out? It couldn't have been the new brake handle could it? (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=130557188780&ssPageName=ADME:L:OC:AU:1123) The other major question : Since the bike wasn't running I decided to give general manitenance first by changing sparkies and oil before I troubleshoot. I started with sparkies today and went for the toughest one - the spark plug for 3rd cylinder from the left when you're sitting down on the bike. Funnily enough, it seemed to be lower than the rest of the spark plugs (as in scewed in further which did no make sense)- the socket could not screw it out. It was as if the socket was not 'meshing' with/catching onto the spark plug to be able to screw it out. I hope spark plug didn't catch any cylinder head when I tried to start it. Can spark plugs melt from that? The other spark plugs could be removed but not this one. Any ideas? This is what it looks like - almost nothing to catch onto: http://img339.imageshack.us/img339/2696/img20120531174639.jpg http://img12.imageshack.us/img12/8237/img20120531174636.jpg http://img515.imageshack.us/img515/2140/img20120531174610.jpg This is a good spark plug: http://img577.imageshack.us/img577/2359/img20120531174741.jpg THanks and sorry for so many questions at once. I hope we can sort this out, man I feel like an idiot for leaving it out and not covering it up at least.
Hey NK7,. welcome to the fourm, if your brake is jammed on the disk and wont move then I would hazzard a guess your brake fluid has perished or the caliper seals have perished. If you know how to bleed brakes then release some fluid from the caliper nipple and see if it frees up. You may have to remove the cover from the brake resiovior and bleed the old fluid out and then top it up with new stuff. If your brake caliper is jammed, then remove the brake caliper from your fork leg and use a clamp\vice to try and push the piston back in and loosen it up. If this is the case, you may have to replace the caliper seals but hoepfully it frees up. If you do let air into the brake system, you will need to bleed new fluid all the way through. As for your plug... while the photos are pretty good for such a tight space :Thumbs_up: I'd have to ask is there something stuck around the thread on the plug, my plug tool has a rubber bung that is supposed to catch on the ceramic on the plug to pull it out once its loosened, could that black ring around the plug be the rubber from a plug tool ?. The fact thats its lower is a worry to me, my advice is to get your local bike shop to have a look. Its best not to play as it might make it worse and cost you more $$$ I know someone who snapped a plug getting it out and some of the ceramic went into the cylinder, he then tried to use the strater to blow it back out the plug hole and bent a valve in the process. :BangHead: Good luck, let us know how you go. Cheers N Beers Chris
Thanks for the reply. Yeh for the brakes, the master cylinder lid screws are rusted and do not want to come off. I was hoping to do a full bleed. I will try and get that caliper loose first though. The sparkie - yeh good ol phone camera does the job. I was pretty stoked. The rubber plugs seem fine and not damaged so not sure what this bung looks like. I tried poking around the spark plug with a thin screwdriver and seeing if I could scratch that 'black' thing surrounding the plug but didn't seem to make a difference. Should the other plastic plug holders have this 'bung' as well? EDIT: I re-read your post and realised you said the plug 'tool' not the holder. I just checked and that rubber thing is still intact.
have you changed the plugs in the past or was it a sin from a previous owner ? To me it looks like there is something covering the plug base, see the area in the photo below with the red arrow, to me it looks like the rubber grommet froma tool has fallen off and is now pushed over the base and spread out towards to spark plug wall. I could be wrong, most probably am, but thats what it looks like to me. the last pic is the type of clamp I use to wind in the brake caliper piston ( I normally remove the pads, but was lazy for the photo.... at least I used a MC19 caliper for realism :Thumbs_up:
To be honest, I remember the owner changing the plugs for me before I got the bike. Dammit, it would have been from his tool coz I didn't take my tools with me! That might be it and seems most probable. Any ideas how to get rid of this melted rubber then?
try something long and skinny down the side where the red arrow is and see if it moves are frees up ? Dont try and remove the plug using the ceramic, it will only end in tears :'(
Hey NK7 Sounds like the spark plug spanner rubber insert has melted onto your plug. Have no idea how to remove this, be very carefull to not damage the plug. Should you manage to get it out, blow plenty of air around prior to removing the plug. You don't want any residue floating around, trust me. Take this opportunity to welcome you to the forum. As for your brakes, saturate as much as possible with WD40, after a bit the screws on your master cylinder should loosen, flushing will be a good step forward. Keep us posted. Phil
you could try sliding a welding rod or metel coat hanger down with a hook on the end and get it under the rubber and pull it up off the plug
Sorry fellas called in to work from last weekend and finally got chance to do some work on bike today. 4 hours later I am the proud father to this little baby. 5 g and name Nelly: The tools I used to finally get it out: I had sprayed the spark plug cylinder with WD40 night before. The tools I tried were, copper wiring, speaker wiring, flat head screwdriver, sticky residue on end of spark plug socket (to let it stick to the rubber and pull it out), guitar strings, telekenesis. Almost had it out 1 hour into it but knocked it back down with my butter fingers. Also, sprayed the master cylinder cover screws with wd40 and hammered drilled them out. Gonna get new ones tomorrow. Also, see some rust on the chain - might not risk things and just get a new one. Where is best place?
hey LK7, well done getting rid of Nelly :Thumbs_up: As for chains, make sure you have a good look at your sprockets as if they are worn, you will just ruin a new chain running them on older spockets. You can get full sets on ebay for about $180, or try your local bike shop http://www.ebay.com.au/itm/HONDA-CBR250R-CBR250-CBR-MC19-RK-HEAVY-DUTY-O-RING-CHAIN-AND-SPROCKET-KIT-17-54-/150822043833?pt=AU_Motorcycle_Parts_Accessories&hash=item231db1c0b9
Cheers for the ebay tip. I bought it and they upgraded it to x-rings due to some time delay reason. How long do fuel pumps last for? Since I'm giving the bike a rebirth thought I might ask about the pumps. Replace it? Reasonable price considering locally they want it for $200 or more. http://www.ebay.com.au/itm/180852300436?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
Hey nk7 I'm of the opinion, if it ain't broke, don't fix it. However after looking at your link, the price is certainly right. Hey, maybe buy the new pump and keep it for when your does eventually goes, your Mobile. Good luck with it, the rebirth continues and were keen to see the outcome. Phil
Yeh gonna leave the pump for now..but maybe later. First of all fix the bike. I finally got the chance to work on the bike this weekend. Seems like weekends is all I can afford for working on the bike at the moment...pretty busy. Little Update: So I got a chance to empty fuel tank, replace fuel filter. Emptied tank last night and left it covered outside overnight. Picked it up today and hear some rustling - the inside has got what seems like little black rusted off chunks and pieces. Poured some fuel down there to flush it out but seems to be more coming off as I shake it. I'm worried it might block the exit line (fuel seems to be dirtier when I tried to dump the fuel - slight brown tinge). Don't know what is going on but not all came out. Any ideas? Do I have to start looking for a new tank? Don't want to reattach and start the bike. Also got a chance to bleed the brakes. Did the front first. There was almost no fluid in master cylinder. I remember getting front brakes checked, cleaned and bled before I could get roadworthy (so I am hoping they did a good job - but fluid this low!!). Filled up and tried to crack nipple - bit of rust on nipple and spanner began to slip. Could get maybe 2-3 bleeds (fluid was dark with little black flakes through it - very dirty) when I couldn't unscrew anymore. And front brake handle now can be squeezed with no resistance at all (not sure what this means - possibly coz of nipple not creating vacuum anymore). Need a new nipple tomorrow after work. Brakes still are seized on front. And to make matters worse - the back brakes I somehow found were seized onto disk as well! :BangHead: Tried to bleed these but didn't seem to help me dislodge brake pads from disk. I don't know how this happened since the bike has been in the garage since I slowly moved it there. Back wheel was fine. So now I have 2 seized brakes to have fun with.
Quick question to people out there - for cleaning the rust on the fuel tank (and it is pretty hectic inside there). I have 2 options: 1) Clean and sealant kit - $90 locally or $77 for 20L tank from ebay. I'm uncertain as to how good this product is - there is a lot of rust from the sounds of it (sounds like a maraca)! 2) Buy a good used one from ebay as well - only $150 AUD (no rust, no fuel cap (can add for 10 Euros), no fuel tap - can use my old ones). And probably give a quick sealant if I want to be extra careful.
Hey nk7 Try contacting Bob our local Bike painter. Ace of Sprays. Bob knows all the In's and outs when it comes cleaning tanks and he will guide you in the correct direction.
Does anyone know how to remove rear brake caliper? I only have one attachment bolt that I undid. The second one I do not know how to undo. Or do I need to remove the caliper mounting bracket as well? (this would mean wheel as well?)
Ignore previous question: Yeh it is actuall 1 bolt attaching itself to bracket nothing else. Here's what I did for anyone out there. Yeh it was the brake pads catching on the bracket - so first removed attachment bolt, removed the hanger plug, pin (this bolts onto other side of caliper so not technically the same as the other attachment bolt), brake pads slipped out and caliper was able to be twisted away from disk and then gently removed from pin extending toward the exhaust from the bracket. Here are pics for anyone in future - quite simple in the end. As it always ends up being.
Update: Ran around to many bike shops, brake places and finally Honda got seal kits for calipers and master cylinders and also new pistons for front and bake - total $330!!! I put a deposit down but am still considering getting decent second hand pairs. I read a comment about brakes and how much my life is worth...haha. Still second guessing though. Wonder if it too late to cancel deposit order