Michael666

Hi guys, I have a problem with my derbi senda drd 125 sm. I bought the bike, it used to run very smooth no problems at all, apart from the part that the guy gave me a new speedometer which when I install doesn’t work, texted the guy never replied ( dumb me that I didn’t check it next to him ) apart from 3 icons on the Speedo anything else didn’t show up. I needed the bike to travel to my workplace so I installed a Speedometer on my phone so I could travel. Recently the bike has been cutting itself out while riding. Unfortunately I had to leave then the bike for 2 weeks as I had to go Poland, then I had self isolation for another 2 weeks. After that I tried running the bike and even the start button didn’t work ( before it used to ) only way I can start it is by running with it on a second gear and adding throttle. But of course it’s not nice and I feel like it can damage the bike even more. Things I have noticed overall before the current situation : The bike would just die from time to time, Speedo not working, bike shaking while riding, after hitting the starter button I had to add throttle from time to time so it wouldn’t die. I am sure the battery is 100% alright, even got a new one from my mechanic who’s away till February. He has checked it etc It’s my first bike ever I am a total noobie, please explain everything as smooth as you can, cheers guys !