Cbr Randomly bogged down and died
#1
Cbr Randomly bogged down and died
So I bought a used CBR f4 about 6 months ago (give or take) she's been running just fine. I've done several 500+ mile trips on her. The only mechanical issue I've had is cam chain noise so obviously I need a new CCTV. Today I was riding to my wife's work to drop off a 'care package' and on the way to the freeway (about 3 miles) everything was great. As soon as I accelerated onto the freeway I noticed that the higher RPM range was feeling a bit weak and then as soon as I noticed, the bike started to bog down and die. Luckily I pulled over but she absolutely would not start. I called a tow truck and was waiting and decided to try and turn her on one more time a viola ! She turns on..... And she made it all the way to my destination as if nothing happened. Some things I noticed are 1.I felt some heat under my seat (but the thermo read fine and the engine didn't seem any hotter than usual when I put my hand near it) 2. A burning smell that dissipated quickly 3.I touched the heat sink in the tail section within 3 minutes (I think its part of the rectifier) of breaking down and it was cool to the touch and 4. Fluids all looked good. Oil was a nice color/level , coolant was as green as always (water wetter)....
So is my assumption on thinking it may be an electrical problem warranted ? Would a bad rectifier cause this ? The only reason I even assume that it may be that is because I have heard of bad rectifiers on cbr's and the burning smell/heat that was coming from the bike but the fact that the heat sink was cool kind of points me away from that..... Any suggestions or ideas ? Thanks in advance guys..... Help !!!!!
I forgot to add that the previous owner did drop her and she has some cosmetic issues but there was no major or engine damage. The reason I wanted to add this is because the slip on does need to be replaced. Currently I have it ghetto rigged at the moment (don't laugh) with a hose clamp and sheet metal near were the slip on and mid pip connect..... But that has been that way since I first got it and I really didn't think / don't think that it would be the culprit. I just don't want to leave out any detail. Thanks guys.
So is my assumption on thinking it may be an electrical problem warranted ? Would a bad rectifier cause this ? The only reason I even assume that it may be that is because I have heard of bad rectifiers on cbr's and the burning smell/heat that was coming from the bike but the fact that the heat sink was cool kind of points me away from that..... Any suggestions or ideas ? Thanks in advance guys..... Help !!!!!
I forgot to add that the previous owner did drop her and she has some cosmetic issues but there was no major or engine damage. The reason I wanted to add this is because the slip on does need to be replaced. Currently I have it ghetto rigged at the moment (don't laugh) with a hose clamp and sheet metal near were the slip on and mid pip connect..... But that has been that way since I first got it and I really didn't think / don't think that it would be the culprit. I just don't want to leave out any detail. Thanks guys.
Last edited by superjuicebox2; 10-09-2015 at 05:43 PM.
#2
Yeah, I'd start checking voltages of your battery off and while running. I'd also test the R/R, depending on what I found by testing the battery.
There are a couple of very good write-ups on here on how to check and what to check. Sometimes, you can visibly tell an R/R is going bad by seeing the connectors melting or connecting pins in the connector showing signs of heat.
Glad to hear you weren't stranded!
There are a couple of very good write-ups on here on how to check and what to check. Sometimes, you can visibly tell an R/R is going bad by seeing the connectors melting or connecting pins in the connector showing signs of heat.
Glad to hear you weren't stranded!
Last edited by Conrice; 10-11-2015 at 09:49 AM.
#3
Yeah, I'd start checking voltages of your battery off and while running. I'd also test the R/R, depending on what I found by testing the battery.
There are a couple of very good write-ups on here on how to check and what to check. Sometimes, you can visibly tell an R/R is going bad by seeing the connectors melting or connecting pins in the connector showing signs of heat.
Glad to hear you weren't stranded!
There are a couple of very good write-ups on here on how to check and what to check. Sometimes, you can visibly tell an R/R is going bad by seeing the connectors melting or connecting pins in the connector showing signs of heat.
Glad to hear you weren't stranded!
Thanks again!
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