Hello everyone.
I'm new here - I actually created an account just to ask you guys this question - so I apologise if this question has already been asked before. Remove if needed.
I own a second-hand Honda CB125R 2018. Small city bike, single cylinder, liquid cooled, ABS. Some background information about the motorcycle:
Anyways. While I was nearing the end of the stuck up traffic, I noticed my Check Engine warning light came on. I also noticed that the pitch of the bike suddenly increased a bit, and it felt like it had a bit less power. I have a feeling I won't even be able to hit my 90 km/h legal top speed anymore, but I'm not gonna try it out and risk increasing the potential damage.
I did a bit of research as to why the Check Engine light could be on.
Thanks so much in advance and have an amazing day.?
Pete
I'm new here - I actually created an account just to ask you guys this question - so I apologise if this question has already been asked before. Remove if needed.
I own a second-hand Honda CB125R 2018. Small city bike, single cylinder, liquid cooled, ABS. Some background information about the motorcycle:
- I bought the bike with 1300 km on the counter. It now has 2000 km.
- Back in early October, four days after I had picked up the bike, I took a wet left corner too fast and slipped, NO engine protection. I was able to repair all damage (bent shifter, broken left foot peg, bent left chain adjuster ...) and straighten the forks and handlebars. Poor gearbox got scratched up a tiny bit, but everything else seemed to be in perfectly good shape.
- The bike sat in my garage until early January (aka. for two months) because I couldn't afford the spare parts immediately. I also installed crash bars the moment finances allowed me.
- The bike performed like a champ ever since.
Anyways. While I was nearing the end of the stuck up traffic, I noticed my Check Engine warning light came on. I also noticed that the pitch of the bike suddenly increased a bit, and it felt like it had a bit less power. I have a feeling I won't even be able to hit my 90 km/h legal top speed anymore, but I'm not gonna try it out and risk increasing the potential damage.
I did a bit of research as to why the Check Engine light could be on.
- I checked my O2 sensor. It seems to be okay. It's not fouled and the wiring doesn't seem to be ziptied too tight to the bike's frame.
- I checked my air filter. I had driven in heavy rain the day before this all started, but it seems to be dry and in okay shape.
- I don't think the spark plug is a problem since I have only one cylinder and the bike is capable of driving, just with a small decrease in acceleration power.
- I may have overheated the clutch plates, since I don't have a good throttle control yet and did raise the RPM's a bit high while I was riding the clutch. It's a wet, cable-driven clutch. I adjusted the clutch cable, but that didn't solve the problem. I also adjusted the throttle cable and the slack in my chain while I was at it, but unsurprisingly, this didn't fix the issue either. The Check Engine light was still on.
- I tried resetting the electrical system of the bike by temporarily disconnecting all wiring from the negative terminal of the battery, and draining the capacitors. After letting the bike sit without electricity for 10 minutes and connecting everything back up, the Check Engine light was still on.
- I read it might be bad/old gasoline. I decided to go out for a careful ride and maybe pick up some fresh gasoline to dilute the potential "bad" gas with. During this trip it was raining again, and when I started the bike after I had parked it for about 50 minutes in the rain, not only the Check Engine light came on, but also the ABS light! I drove it home without any new problems though, and even locked up the front wheel on my porch after braking too hard - but ABS helped me out. Therefore, the ABS light must be on because of a problem with the ABS at the rear. I looked at the rear brake caliper and at the ABS sensor disc, but didn't see any obvious signs of failure. I also checked the front just to be sure, but it looked exactly the same.
- I didn't pick up the fresh gas in case you were wondering.
Thanks so much in advance and have an amazing day.?
Pete