[11stryker11]

As of yesterday I put on 250 easy miles and throughout the day my cousin behind me said when I get on the throttle it blows smoke from the exhaust pipe. Smells like un burnt fuel so I'm guessing I'm running rich but why all of a sudden now? 2400miles on the bike. I also noticed its been back firing more and more. I have a cobra slip on exhaust but have had that on since new. Any ideas anyone???

 

[SmokenJoe]

Do you have a tuner too?

 

[mikoloe]

Did you put fuel from a different place?

 

[.3604]

Did they check the valves on the first service to see if adjustment was needed?

 

[thibbits]

What color is the smoke? Smoke in the exhaust can come out in three colors which can tell you what is burning in the engine.
Black=Fuel (burning rich)
White=Coolant
Blue=Oil
Now it's not always 100% but it's close enough to narrow down the problem.

 

[11stryker11]

No tuner, got fuel at 2 different places that day. Also talked to a buddy from work and last Thursday it was doing it just not as bad so I ruled out the bad fuel.
Not sure if they checked the valves or not I would have to ask.
As for the smoke color it's black when I get on the throttle but in my garage just revving it, it's more grey. I took a video but I'm not sure how to upload it from my phone on here

 

[SmokenJoe]

No tuner, got fuel at 2 different places that day. Also talked to a buddy from work and last Thursday it was doing it just not as bad so I ruled out the bad fuel.
Not sure if they checked the valves or not I would have to ask.
As for the smoke color it's black when I get on the throttle but in my garage just revving it, it's more grey. I took a video but I'm not sure how to upload it from my phone on here

Upload to youtube the link there.

 

[thibbits]

I would be checking everything that could cause the bike to be running rich i.e. air filter, spark plugs, valves. Just start with the easier and free things first and work your way up the list. Also ask yourself if there is anything that you have changed on the bike when the problem started.

 

[wayne]

I would be checking everything that could cause the bike to be running rich i.e. air filter, spark plugs, valves. Just start with the easier and free things first and work your way up the list. Also ask yourself if there is anything that you have changed on the bike when the problem started.

+1 on that.
Dirty, plugged air cleaner could cause the problem. How many miles since it was changed, same with the plugs and oil and filter. Also a dirty O2 sensor can cause issues. Good place to start.

 

[11stryker11]

Thanks guys ill be working on all of it besides the valves not sure what I'm
doing there everything else no problem. I have a week before my appointment to bring it in to pay so hopefully it's something easy!

 

[11stryker11]

http://youtu.be/xQjgzfdPuqI

Hopefully I did that right so you can hear and kind of see what's up

 

[Goose0704]

Defiantly be going back to dealer bud I don't no but not all the money I just spent on this thing wouldn't be smoking like that

 

[11stryker11]

Air cleaner is fine oil change was just over 1000 miles ago. Wonder if I just unplug the o2 sensor and see how she runs I have a week to figure it out before I have to pay to bring it in warranty was up a month ago??

Anyone think I shouldn't drive it?

 

[wayne]

Hmm, hard to tell in the vid but looked more like either blue or greyish white. have you checked the level of the anitfreeze? Hard to diagnose from a vid but water vapor or antifreeze would burn white. Oil would have a blueish tint. definitely more smoke than normal. Any smell to it e.g. anti freeze would have a sweetish smell.

 

[Stryker2012]

Like Wayne said, hard to tell without really being there. It looks to me like a coolant leak somewhere (cracked case/head gasket). If it was fuel or oil, there would definitely be a smell, and it would tend to hang around in the air. Coolant would pretty much dissipate right away. Like Wayne said, check your fluid levels...might give you a hint.

 

[11stryker11]

Yup coolant and oil are fine it's defiantly fuel smelling. I'm going to try and unplug the o2 sensor. Friend of mine was running rich after he gutted his pipes he unplugged o2 and it was fine. Ordered a programmer and never had a problem again. Hopefully it's that simple I've searched and searched and no one has seemed to have the same problem at all and this slip on cobra is on a lot of bikes.

 

[toby]

Might be time for a diognostic test. Possibly a censor in the closed lope system has gone bad causing it to bur rich. 02 censor is one. If you unplug that one and there is no change that may be it.
Maybe you might be the first to see if you can access the diognostic mode via the digital display to get the error codes.
Here is how you access it. Have not tried this so proceed at your own risk.:wink:


1. Press and hold the Reset button
2. Turn ignition to ON and keep holding the Reset until "diag" appears on the LCD (about 5 seconds).
3. Now press and hold Reset and Select buttons at the same time and hold for about 5 seconds until you enter the diagnostics list.
4. Now you can press Select to move up, or Reset to move back through all available code. Among them are throttle position sensor, temperature etc.

01 : Throttle position - must be from 15-17 (closed) to 97-100 (opened)
02 : Atmospheric pressure given in mmHg (normal is 760 - average weather)
03 : Differential pressure between air and intake pipe
05 : Air intake temperature (in Celcius)
06 : Cooling liquid temperature (in Celcius)
07 : Absolute speed (must be 000 in garage). Check with rear weel.
08 : Lean angle safety switch control - must be from 0.4-1.4 (upright) to 3.8-4.2 (horizontal). DISMOUT THE SWITCH FOR CHECKING !!!
09 : Battery voltage - must be above 12.0
20 : Side stand switch - displays ON or OFF
21 : Neutral gear switch - displays ON or OFF


Part II : ECU memory check.


60 : EEPROM error code presence - 00 means no default, 01 or 02 means default on corresponding cylinder (blinks if both cylinders).
61 : Error Code memory log - Displays 00 if no error code in memory, displays the Error Code if any (11 to 50). Display changes every two seconds if more than one Error Code in memory, then start again from first.
62 : Displays the number of Error Code in memory. To clear the memory, switch the Engine Run Switch to ON position (no backup).
70 : Check Code number, display from 0 to 255


Part III : Activators - To activate, turn Engine Run switch from OFF to ON - Engine check light is activated too.
30 : Coil 1 is activated 5 times per second.
31 : Coil 2 is activated 5 times per second.
36 : Injector 1 solenoid is activated 5 times per second.
37 : Injector 2 solenoid is activated 5 times per second.
48 : Air duct solenoid is activated 5 times per second.
49 : Air intake solenoid is activated 5 times per second.
50 : Fuel injection relay is activated 5 times per second.
51 : Cooler fan is activated every 5 seconds.
52 : Headlight relay is activated every 5 seconds (2 seconds ON, 3 seconds OFF) - 2003+ model only.


Error Codes
Error Number 11 : Cylinder identification sensor error - DIAG mode (none)
Error Number 12 : Crankshaft posiiton sensor error - DIAG mode (none)
Error Number 13 : Air intake pressure sensor error - DIAG mode 03
Error Number 14 : Air intake duct error - DIAG mode 03
Error Number 15 : Throttle position sensor error - DIAG mode 01
Error Number 19 : Sidestand sensor error - DIAG mode 20
Error Number 20 : Air pressure sensors error - DIAG mode (none)
Error Number 21 : Coolant temperature sensor error - DIAG mode 06
Error Number 22 : Air intake temperature sensor error - DIAG mode 05
Error Number 23 : Ambient air pressure sensor error - DIAG mode 02
Error Number 24 : O2 (lambda) sensor error - DIAG mode (none)
Error Number 30 : The bike went down - DIAG mode 08
Error Number 33 : Coil 1 open circuit - DIAG mode 30
Error Number 34 : Coil 2 open circuit - DIAG mode 31
Error Number 41 : Tilt sensor error - DIAG mode 08
Error Number 42 : Speed sensor error / Neutral sensor in short-circuit - DIAG mode 07-21
Error Number 43 : Battery voltage control error - DIAG mode (none)
Error Number 44 : EEPROM read/write error - DIAG mode 60
Error Number 50 : ECU memory error - DIAG mode (none)
Error Er-1 : ECU link error
Error Er-2 : ECU link error
Error Er-3 : ECU link error
Error Er-4 : ECU link error


Following ERROR codes DO NOT allow engine to run :
11-12-19-30-41-50 and Er-1 to Er-4


Error code 11 allow engine to continue running only if fault appears after engine start.
Image

 

[Stryker2012]

Might be time for a diognostic test. Possibly a censor in the closed lope system has gone bad causing it to bur rich. 02 censor is one. If you unplug that one and there is no change that may be it.
Maybe you might be the first to see if you can access the diognostic mode via the digital display to get the error codes.
Here is how you access it. Have not tried this so proceed at your own risk.:wink:


1. Press and hold the Reset button
2. Turn ignition to ON and keep holding the Reset until "diag" appears on the LCD (about 5 seconds).
3. Now press and hold Reset and Select buttons at the same time and hold for about 5 seconds until you enter the diagnostics list.
4. Now you can press Select to move up, or Reset to move back through all available code. Among them are throttle position sensor, temperature etc.

01 : Throttle position - must be from 15-17 (closed) to 97-100 (opened)
02 : Atmospheric pressure given in mmHg (normal is 760 - average weather)
03 : Differential pressure between air and intake pipe
05 : Air intake temperature (in Celcius)
06 : Cooling liquid temperature (in Celcius)
07 : Absolute speed (must be 000 in garage). Check with rear weel.
08 : Lean angle safety switch control - must be from 0.4-1.4 (upright) to 3.8-4.2 (horizontal). DISMOUT THE SWITCH FOR CHECKING !!!
09 : Battery voltage - must be above 12.0
20 : Side stand switch - displays ON or OFF
21 : Neutral gear switch - displays ON or OFF


Part II : ECU memory check.


60 : EEPROM error code presence - 00 means no default, 01 or 02 means default on corresponding cylinder (blinks if both cylinders).
61 : Error Code memory log - Displays 00 if no error code in memory, displays the Error Code if any (11 to 50). Display changes every two seconds if more than one Error Code in memory, then start again from first.
62 : Displays the number of Error Code in memory. To clear the memory, switch the Engine Run Switch to ON position (no backup).
70 : Check Code number, display from 0 to 255


Part III : Activators - To activate, turn Engine Run switch from OFF to ON - Engine check light is activated too.
30 : Coil 1 is activated 5 times per second.
31 : Coil 2 is activated 5 times per second.
36 : Injector 1 solenoid is activated 5 times per second.
37 : Injector 2 solenoid is activated 5 times per second.
48 : Air duct solenoid is activated 5 times per second.
49 : Air intake solenoid is activated 5 times per second.
50 : Fuel injection relay is activated 5 times per second.
51 : Cooler fan is activated every 5 seconds.
52 : Headlight relay is activated every 5 seconds (2 seconds ON, 3 seconds OFF) - 2003+ model only.


Error Codes
Error Number 11 : Cylinder identification sensor error - DIAG mode (none)
Error Number 12 : Crankshaft posiiton sensor error - DIAG mode (none)
Error Number 13 : Air intake pressure sensor error - DIAG mode 03
Error Number 14 : Air intake duct error - DIAG mode 03
Error Number 15 : Throttle position sensor error - DIAG mode 01
Error Number 19 : Sidestand sensor error - DIAG mode 20
Error Number 20 : Air pressure sensors error - DIAG mode (none)
Error Number 21 : Coolant temperature sensor error - DIAG mode 06
Error Number 22 : Air intake temperature sensor error - DIAG mode 05
Error Number 23 : Ambient air pressure sensor error - DIAG mode 02
Error Number 24 : O2 (lambda) sensor error - DIAG mode (none)
Error Number 30 : The bike went down - DIAG mode 08
Error Number 33 : Coil 1 open circuit - DIAG mode 30
Error Number 34 : Coil 2 open circuit - DIAG mode 31
Error Number 41 : Tilt sensor error - DIAG mode 08
Error Number 42 : Speed sensor error / Neutral sensor in short-circuit - DIAG mode 07-21
Error Number 43 : Battery voltage control error - DIAG mode (none)
Error Number 44 : EEPROM read/write error - DIAG mode 60
Error Number 50 : ECU memory error - DIAG mode (none)
Error Er-1 : ECU link error
Error Er-2 : ECU link error
Error Er-3 : ECU link error
Error Er-4 : ECU link error


Following ERROR codes DO NOT allow engine to run :
11-12-19-30-41-50 and Er-1 to Er-4


Error code 11 allow engine to continue running only if fault appears after engine start.
Image

Hey Toby..if that sequence works, you should see if you can get a moderator to pin it in one of the topics so it will always be there. That is a handy-dandy thing to know!!

 

[toby]

Hey Toby..if that sequence works, you should see if you can get a moderator to pin it in one of the topics so it will always be there. That is a handy-dandy thing to know!!

Ya I haven't tried it yet but hope some one does. There should be a way to adjust F/A ratio in the ECM also according to some other statements I read. This might be way over our heads though. I know it is mine and I'm sure if this is possible Yamy and Star officials don't want the average owner to now these things.:suspicious:

 

[11stryker11]

It doesn't work I tried. And also I've done everything you guys suggested. Guess it's time to bring it in... Just wish I could ride on my days off finally havin some nice weather!