Buzzeye1010 Posted May 12, 2019 Share Posted May 12, 2019 Hello, I have a Yamaha yzf r125 16 plate. Last last couple of days I’ve noticed when I’m riding the bike will lose power for a split second and then goes back to normal. No warning lights are the dash. It’s as if the brakes go on and then released for a millisecond. It’s being getting slightly worse the more a ride it. It mainly happens when I hit a bump but It has happened randomly. My dash remains normal when this happens which make me thinks it’s not that, that needs charging. I’m not very knowledgable when it comes to this stuff so if someone could give me a rough idea of what this could be I’d appreciate it!Many thanks Quote Link to comment Share on other sites More sharing options...
dynax Posted May 12, 2019 Share Posted May 12, 2019 Muck in the fuel system, doesn't take much, when was it last serviced, what fuel system is it, carb or efi, Quote Link to comment Share on other sites More sharing options...
Guest Richzx6r Posted May 12, 2019 Share Posted May 12, 2019 It's a 125..... Quote Link to comment Share on other sites More sharing options...
fastbob Posted May 12, 2019 Share Posted May 12, 2019 I wild guess. Check your side stand switch . Easy cure , give the tab that pushes the plunger in a good tap with a hammer so it pushes the plunger in a little bit further . Quote Link to comment Share on other sites More sharing options...
fastbob Posted May 12, 2019 Share Posted May 12, 2019 It's a 125..... Now now , I've got a 125 in my yard that's apparently good for 32 BHP . Quote Link to comment Share on other sites More sharing options...
Guest Richzx6r Posted May 12, 2019 Share Posted May 12, 2019 True but still. I'm not saying they aren't good bikes I had one back in 2011 and it was good for 85 odd mph but it's still a 125 with at best 12 BHP Quote Link to comment Share on other sites More sharing options...
Phill Posted May 12, 2019 Share Posted May 12, 2019 I had similar issues with my YBR(FI), cutting out for a fraction of a second and coming back. I suspect there was an issue with the ignition loom(igntion barrel) because since i have installed heated grips the problem vanished. Quote Link to comment Share on other sites More sharing options...
Buzzeye1010 Posted May 12, 2019 Author Share Posted May 12, 2019 Checked it over today and found the battery wires were coming loose. Most likely due to the vibration. Seems to run fine now but I’ll need to keep a closer eye on things. Thanks everyone for your help! Quote Link to comment Share on other sites More sharing options...
fastbob Posted May 12, 2019 Share Posted May 12, 2019 True but still. I'm not saying they aren't good bikes I had one back in 2011 and it was good for 85 odd mph but it's still a 125 with at best 12 BHP The OP is reporting an intermittent fault not a general lack of performance . Quote Link to comment Share on other sites More sharing options...
fastbob Posted May 12, 2019 Share Posted May 12, 2019 Checked it over today and found the battery wires were coming loose. Most likely due to the vibration. Seems to run fine now but I’ll need to keep a closer eye on things. Thanks everyone for your help! Excellent, glad you sorted it . Quote Link to comment Share on other sites More sharing options...
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