mcmarvellous Posted January 16, 2010 Share Posted January 16, 2010 Hi everyone, My son's xvs125 2001 model won't start. It has been left idle for 3 weeks during the snow and now won't fire. I have checked the spark and it's good but in doing so I broke the plug top and need to replace it. no problem I thought until I tried to get the tank off! I can't see how I am to disconnect the speedo to get to the coils to change the spark leads and also, to check if the fuel is getting to the carb in the first place. The bike has a fuel pump,I guess vacuum operated and I tried the prime setting on the fuel tap, recharged the battery etc but not a cough from the engine. the inlet manifold looks like it could do with replacing as it looks old and cracked but it should still fire, but the tank needs to come off! I have got the seat off, back tank bolt, the speedo housing all loose but not off. and the tank will move back until the cables etc prevent further movement. I run british bikes so am used to unreliability, but I have plenty of room around the simple components on my BSA and Norton and good manuals but there doesn't seem to be a Xvs125 manual other than the owners one with the bike. Ny son saved up for the thing and I bought it, it rode fine on the way home and was fine for a couple of weeks but he is in the post Christmas skint stage and I would like to get it running for him! And before you all have a go, I have been a multiple Yamaha owner, which is why I went for the Dragstar! Did have a couple of Hardley Ablesons as well so like a cruiser but we won't go there today! Any ideas out there? Link to comment Share on other sites More sharing options...
dan28 Posted January 16, 2010 Share Posted January 16, 2010 Hi everyone, My son's xvs125 2001 model won't start. It has been left idle for 3 weeks during the snow and now won't fire. I have checked the spark and it's good but in doing so I broke the plug top and need to replace it. no problem I thought until I tried to get the tank off! I can't see how I am to disconnect the speedo to get to the coils to change the spark leads and also, to check if the fuel is getting to the carb in the first place. The bike has a fuel pump,I guess vacuum operated and I tried the prime setting on the fuel tap, recharged the battery etc but not a cough from the engine. the inlet manifold looks like it could do with replacing as it looks old and cracked but it should still fire, but the tank needs to come off! I have got the seat off, back tank bolt, the speedo housing all loose but not off. and the tank will move back until the cables etc prevent further movement. I run british bikes so am used to unreliability, but I have plenty of room around the simple components on my BSA and Norton and good manuals but there doesn't seem to be a Xvs125 manual other than the owners one with the bike. Ny son saved up for the thing and I bought it, it rode fine on the way home and was fine for a couple of weeks but he is in the post Christmas skint stage and I would like to get it running for him! And before you all have a go, I have been a multiple Yamaha owner, which is why I went for the Dragstar! Did have a couple of Hardley Ablesons as well so like a cruiser but we won't go there today! Any ideas out there? reomve the tank bolt nearest the seat look under the tank probably best using a torch close to were it meets the seat there are 2 bolt/ nuts i cant remember they are either 8 or 10mm when theses are off the tank will move but not come off as it is on a bush close to the front of it wiggle around a bit it will come off when i got mine off the bush it would lift over a good few inch so i just moved it out of the way i couldnt see how to disconect the speedo cable you dont need to disconnect it but if you do tell me how i think we undid the two bolts from the airbox too on right hand side under tank most of the pipes to the carb are on the left it fairly easy with the tank off you said plug top if you meean the cap on the end of the coil lead no need to replace the coil etc the caps unscrew Link to comment Share on other sites More sharing options...
derbyshireyeomanry Posted January 17, 2010 Share Posted January 17, 2010 Hi mate , to take the tank off fully you have to disconnect the speedo housing completly which is a simple job, the housing has two black push in fasteners at the front , just push the middle bit in with a little screwdriver or something and they will pop out then undo the screw holding the main bit on , then you can lift off the housing to get underneath it , you will see that the speedo cable is just unscrewed from its socket underneath the housing (by this I mean with your thumbs , not a screwdriver ) and there is two electric cables to unclip and the tank breather pipe to pull off , then the tank will be clear to remove. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted January 17, 2010 Moderator Share Posted January 17, 2010 our 'Yamagod' is THE guy for manuals but i'm pretty sure there's one of those lurking somewhere in my PC, PM me your email and if i can help i will send it you, Link to comment Share on other sites More sharing options...
clarke Posted January 17, 2010 Share Posted January 17, 2010 Hi, Here's a link to another page that links to the workshop manual: http://www.yamahaclub.com/forums/topic/13057-how-do-i-post-a-workshop-manual/page__hl__%3Cspan%20clas Good luck with repairs Link to comment Share on other sites More sharing options...
mcmarvellous Posted January 17, 2010 Author Share Posted January 17, 2010 our 'Yamagod' is THE guy for manuals but i'm pretty sure there's one of those lurking somewhere in my PC, PM me your email and if i can help i will send it you, cheers for that, I have had the tank off, I disconnected the speedo cable from teh front wheel to give me a bit of room to get under the speedo housing on hte tank. Flushed the tank, have now got fuel comming out of both pipes on the petrol tank. Put it all back together and.....nothing. Must be the carb blocked up or the fuel pump. If the prime thingy works this would bypass the pump? So I think it must be a blocked carb or the British bikes friend,and electrical problem but I am getting a decent spark. it's going to the bike shop at this rate as I am not enjoying working on the little thing! A manual would be good though. Thanks guys Link to comment Share on other sites More sharing options...
Ttaskmaster Posted January 18, 2010 Share Posted January 18, 2010 PRIME should be used if you've refuelled from a very low tank, just come off reserve or the bike has been stood for a while. Link to comment Share on other sites More sharing options...
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