problem with cbr 250

ride with pride

ride with pride

Well-known member
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hi,
I was riding today and the bike won't speed up I even shifted gears it won't go past 20 and all of a sudden it felt like it will shut off. I stopped on the side and switched the bike off for a couple of minutes then restarted it and the rest of the way it was good. is that an over heating problem? or oil problem or engine problem?
 
If it was an overheading issue you would see the temp gauge through the roof. When you started the bike back up the electric fan would have started. You can check the oil by looking in the sight glass on the side of the engine. The owners manual will tell you were it is, just make sure the bike is level. Is it possible you hit the kill switch? I did that once, and the bike stopped going forward. I think the engine light came on too, but everything else looked fine. Once I flicked it back on the bike started working again. Its pretty easy to hit with your thumb. It could also have been possible to bump the kickstand. That happened to me once as well. There is a safely switch that will shut the bike off if it detects the kickstand is not fully up. An aggressive shift could move it enough to cut the engine. Its hard to tell sometimes because the bikes are so quiet, especially if you are wearing ear plugs.
 
thanks for your reply. the bike didnt shut off at first but now on my way back when i shift down from 4th gear and come to a stop it shuts off. apparently other cbr 250 owners had this same problem when pulling the clutch in from a high gear and coming to a stop the bike shuts off. Some says it is a valves problem others say that it is a clutch pulling in and gear problem. i will just take the bike to Honda since it is under warranty hopefully they can fix :(


pontiac6000 said:
If it was an overheading issue you would see the temp gauge through the roof. When you started the bike back up the electric fan would have started. You can check the oil by looking in the sight glass on the side of the engine. The owners manual will tell you were it is, just make sure the bike is level. Is it possible you hit the kill switch? I did that once, and the bike stopped going forward. I think the engine light came on too, but everything else looked fine. Once I flicked it back on the bike started working again. Its pretty easy to hit with your thumb. It could also have been possible to bump the kickstand. That happened to me once as well. There is a safely switch that will shut the bike off if it detects the kickstand is not fully up. An aggressive shift could move it enough to cut the engine. Its hard to tell sometimes because the bikes are so quiet, especially if you are wearing ear plugs.
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ride with pride said:
thanks for your reply. the bike didnt shut off at first but now on my way back when i shift down from 4th gear and come to a stop it shuts off. apparently other cbr 250 owners had this same problem when pulling the clutch in from a high gear and coming to a stop the bike shuts off. Some says it is a valves problem others say that it is a clutch pulling in and gear problem. i will just take the bike to Honda since it is under warranty hopefully they can fix :(
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I had this problem with mine as well. It didn't happen often but more often than it should. From what I found out, it's a kill switch issue. I don't know if it's a problem with the wiring but when I'd come off the highway (most often) or slow down, everything would just die and it would take me a few times of turning the key to get it to start again. I would contact the dealership and see what they say about it. Could be something else but from the info I was able to gather about it, it's the kill switch.
 
Mine shuts off and would take really hard effort to get it above 60 and if i shift from 4 to 3rd and slow down and shift to 1st and stop it would stop. It starts right away though when i press the start button. I will take it to the dealer and see what the problem is hope to get it fixed before getting killed on this thing and when i only started to love the bike this happens :(



sykobish said:
I had this problem with mine as well. It didn't happen often but more often than it should. From what I found out, it's a kill switch issue. I don't know if it's a problem with the wiring but when I'd come off the highway (most often) or slow down, everything would just die and it would take me a few times of turning the key to get it to start again. I would contact the dealership and see what they say about it. Could be something else but from the info I was able to gather about it, it's the kill switch.
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ride with pride said:
Mine shuts off and would take really hard effort to get it above 60 and if i shift from 4 to 3rd and slow down and shift to 1st and stop it would stop. It starts right away though when i press the start button. I will take it to the dealer and see what the problem is hope to get it fixed before getting killed on this thing and when i only started to love the bike this happens :(
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Yeah, definitely taking it in would be your best bet. I didn't have a problem getting mine above 60 so it could be something else. I hope it's an easy fix and you can get back out. You definitely don't need it doing that sort of thing especially when you have an oblivious cager behind you pulling up too fast and not even seeing you. Post what you find out because from what I understand, others have had similar issues.
 
Last weekend my bike was sputtering and lurching at 5-6k RPM, and idling extremely low/stalling. I had a definite loss of power at all RPM ranges, and I could hear & feel the motor struggling to keep running. At first I was worried my motor was failing.

I normally use 87, had filled up at the Esso by L&L -- tried putting in some Shell 91, which partly fixed the issue but I still had low idle speed. Next ride I put in some Seafoam (look it up, but it helps remove water from gas, and clean crap out of your gas tank/system) and ever since, the bike has run beautifully. In my case it was either bad/dirty/water in gas, or something partly clogging my gas filter.

This may not be your issue at all, but worth checking.
 
Oh that might actually be my problem since it was raining showers today when i was riding. maybe some water got into the gas. I will try that seafoam and see if it works. If not then it is the valves.
Thanks a lot

TekNinja81 said:
Last weekend my bike was sputtering and lurching at 5-6k RPM, and idling extremely low/stalling. I had a definite loss of power at all RPM ranges, and I could hear & feel the motor struggling to keep running. At first I was worried my motor was failing.

I normally use 87, had filled up at the Esso by L&L -- tried putting in some Shell 91, which partly fixed the issue but I still had low idle speed. Next ride I put in some Seafoam (look it up, but it helps remove water from gas, and clean crap out of your gas tank/system) and ever since, the bike has run beautifully. In my case it was either bad/dirty/water in gas, or something partly clogging my gas filter.

This may not be your issue at all, but worth checking.
Click to expand...
 
ride with pride said:
Oh that might actually be my problem since it was raining showers today when i was riding. maybe some water got into the gas. I will try that seafoam and see if it works. If not then it is the valves.
Thanks a lot
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I should mention, there's no way water should normally leak into your gas tank -- it'd be sealed against even a torrential downpour. This is moreso if there's condensation buildup in your tank (also shouldn't generally happen) or if there was, for example, water or debris already present in the station's gas tank. Or in the unlikely event that while you were filling your own tank, water somehow managed to get into it.

That said, if you do use Seafoam (which isn't a bad idea even just as a maintenance thing) make sure you follow the instructions on the can. My V-Strom has a 22L tank, I used a bit less than 1/3 of the can and it worked well for me, I was in a bit of a rush so I didn't really measure precisely. Also, there are 2 types of Seafoam (that I know of?), the kind you want is in a liquid form, comes in a red and white can, sold at Canadian Tire.
 
The gas is fine on the bike. took it to my friend he tried to fix it. He said it might be a clutch problem. he tried adjusting the clutch a couple of times but the problem still there. the bike wont go past 60 and sometimes wont get to even 60 and would almost die. He will try to fix it this weekend hopefully he can fix it since honda told me it might be a valve problem but they also said they dont know for sure till they see it but they want me to pay like almost $300 when i have extended warranty
 
ride with pride said:
The gas is fine on the bike. took it to my friend he tried to fix it. He said it might be a clutch problem. he tried adjusting the clutch a couple of times but the problem still there. the bike wont go past 60 and sometimes wont get to even 60 and would almost die. He will try to fix it this weekend hopefully he can fix it since honda told me it might be a valve problem but they also said they dont know for sure till they see it but they want me to pay like almost $300 when i have extended warranty
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Yeah, labour is expensive. It could be the valves if it's chugging like that. If that's the case, it's a fairly easy fix.
 
remove the seat and make sure nothing is blocking your air intake valve........ sometimes ownership papers or kickstand pucks slip thru from the trunk and go under the seat where the air intake is located
 
As a previous Honda CBR 250R owner, your problem is nothing new to the majority. When I rode and shifted down, it sometimes would just cut out. People would say, well "maybe you're giving to much gas when downshifting" (blipping the throttle well gently squeezing the front brake) but I could do this on any other bike and it would never cut out.
-http://www.youtube.com/watch?v=aCmDGmpFt6M
-http://www.cbr250.net/forum/cbr250-...r250s-engine-turns-off-when-downshifting.html
-http://www.gtamotorcycle.com/vbforum/showthread.php?170348-CBR250r-Engine-stall-issue
Take a look at these, might find an answer to your problem.
 
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TekNinja81 said:
I should mention, there's no way water should normally leak into your gas tank -- it'd be sealed against even a torrential downpour. This is moreso if there's condensation buildup in your tank (also shouldn't generally happen) or if there was, for example, water or debris already present in the station's gas tank. Or in the unlikely event that while you were filling your own tank, water somehow managed to get into it.

That said, if you do use Seafoam (which isn't a bad idea even just as a maintenance thing) make sure you follow the instructions on the can. My V-Strom has a 22L tank, I used a bit less than 1/3 of the can and it worked well for me, I was in a bit of a rush so I didn't really measure precisely. Also, there are 2 types of Seafoam (that I know of?), the kind you want is in a liquid form, comes in a red and white can, sold at Canadian Tire.
Click to expand...
You don't need to be that careful with Seafoam. You could dump the whole can in an empty tank and it would be fine. If you use too little it won't do anything since it won't be concentrated enough.
 
TPS
throttle position sensor
problem solved
 
unL33T said:
You don't need to be that careful with Seafoam. You could dump the whole can in an empty tank and it would be fine. If you use too little it won't do anything since it won't be concentrated enough.
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Good to know, cuz my bike is currently stalled at aa Shell in Pickering. Fuel pump doesn't seem to be able to work, I hear it just barely functioning when I turn the key. Ugh...
 
Fixed the problem turned out that my gears where messed up and needed adjustment so my friend did it now it works perfectly. He told me that i was shifting to high gears at low rpms which messed up the gears and it needed adjustment phew thank god it wasnt serious problem :D
 
ride with pride said:
Fixed the problem turned out that my gears where messed up and needed adjustment so my friend did it now it works perfectly. He told me that i was shifting to high gears at low rpms which messed up the gears and it needed adjustment phew thank god it wasnt serious problem :D
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I'm not sure that actually makes sense...? Someone who knows better can you please explain if this would be possible. I haven't heard of gears getting "messed up", maybe the clutch slipping and/or cable needing adjustment... which actually might make sense in this case...

That said, if you're shifting up too early RPM-wise, yes the bike would definitely lug. I forget what the CBR250's power-band is, but you should familiarize yourself with it and learn to shift appropriately -- this will help tremendously with acceleration, smooth shifting and overall control of your bike.
 
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