I was fitting my tail tidy light on my yzf r125 two wires touched and now my speedo,front lights and indicators dont work but the bike still starts

I had this exact problem with my r125. My speedo just read 0 and warning light came on. This is caused by a faulty speedo cable. You need to unclip it from under the clocks (the white connector running to the side of the front wheel) and take the front wheel off. Then replace the speedo sensor with a "new" one (quite fiddly to put all back together). Got mine off eBay for just a few pounds. When it's all back together, the warning light will still be on, but when you ride off and the speedo reads something other than 0, the light will go off, and problem solved! When your wheel is off, take the time to re lube the axle, makes putting the axle back in so much easier and your front wheel will turn so smoothly and freely. Make sure you keep note of how the spacer goes in, and I'd get a friend to help support the wheel as you put it back in, makes it so much easier as it's quite fiddly by yourself.

You have the tail light you just installed wired wrong or if the new tail light is a LED tail light your looking at the LED's possibly not drawing enough power to make the flasher work. change the flasher to a LED specific one.

Near the battery there is a fuse box. Use a multimeter to find the blown fuse(s).

DO YAMAHA ZZFR125 2009 PARTS FIT A 2011 YAMAHA YZFR125

do you start the engine with the side stand down?
this will cause engine to cut out.

u got a short some where