I have two problems:

1. My bike is blowing out dark exhuast, I don't think its blue, its more black than anything. When it is idling and I crack the throttle it blow out the dark smoke. This happens all the time whether the bike is warm or cold. My pipe seams to have a alot of carbon build up on the exhaust tip. I am running everything stock except a bolt on Akrapovic can.

2. Whenever I let of the throttle my ehaust sound like it is making a brrrraaapppping type sound. It also happens when I hold the throttle at around 4-5 thosand rpm. Kinda sounds like rapid popping sound that decreases in frequency as the as the rpm drops.

Any ideas on any of these points?

I don't think I could say for sure what the problem is. I'd replace spark plugs, oil, air filter, fresh fuel and see what happens. It sounds like it may be running a bit rich???

I just did an oil change. If I am running rich how can I make the adjustment to my air fuel ratio?

pc

If I am running rich how can I make the adjustment to my air fuel ratio?

I can't say for sure if it's rich. Air/fuel ratio should be taken care of electronically. You could try installing a PCIII but I would take it to a shop first. It may be something a bit cheaper to fix than getting a PC.
Installing another can will change things a bit. With a PC, you can customize the map to your exhaust. What about your plugs? How old are they?

also, are you sure the intake flapper (in the airbox) and the exhaust valve are working properly?
you can get a rich output if the flapper doesn't go down and or if the htev valve doesn't open all the way...

I have had the same problem before... I almost shit myself thinking I need a valve job.... It turned out to be to much oil on my filter, I had just washed and re-oiled it.

this can also be to much engine oil and it is blowing out the crankcase breather into the air box and then onto the filter then getting sucked into the engine.

check you oil level... If you have to much drain some, Take the air box off and clean that. If your filter is stock replace that.... Oh and you will have to put some fresh spark plugs in, The ones you have are probably trashed.

And if all of this works..... Thank the gods above a reseat valve job would cost you $1000+

I bought some Penzoil Fuel System Cleaner and I was wondering if i could use that or should I just buy Penzoil Fuel Injector Cleaner. I thought I would start off with one of those before I put my bike in the shop for a week, the weather is too nice. Can I add the whole bottle to my tank or should I just use half at time?

I noticed that when I rev my enigine to 8000-9000 rpm thats when the smoke comes out and its kinda blue but more a dark blue/black. No smoke comes out when I just rev it to 5000 rpm. When I rev it too 9000 rpm and hold the throttle there my pipe (Akrapovic bolt-on) vibrates back and forth because of lack of constant exhuast pressure. Would that mean that my HTEV is not opening up completely or the flapper in not holdinging in the shut posistion?

Thanks for the help guys. I am bringing it by my dealership tomorrow to see what they have to say but these guys seem like retards like most dealerships... damn I hate dealerships I wish they would take a little more time to give better customer service instead of being in such a rush all the time.

Does anyone have anymore ideas about why my exhuast is acting the way it is with the back pressure pooping sound and smoke? It doesn't seem to be smoking as much. It is not constant smoke when I hold the throttle at 9000 rpm it just puffs smoke when I rev it up too 9000 and let off. It still is making the pooping sound so I dunno if thats just becasue there is different back pressure from putting on the Akra bolt on or not or if it has to do withthe flapper/HTEV problem.

From the manual:

TROUBLESHOOTING
Engine top-end problems usually affect engine performance. These problems can be diagnosed by a compression test or
- If the performance is poor at low speeds, check for white smoke in the crankcase breather hose. If the hose is smoky, check
by tracing engine noises t o the top-end with a sounding rod or stethoscope.
for a seized piston ring (Section 11).
Compression too low, hard starting or poor performance at
low speed - Valves:
- Incorrect valve adjustment
- Burned or bent valve
- Incorrect valve timing
- Broken valve spring
- Uneven valve seating
- Leaking or damaged head gasket
- Warped or cracked cylinder head
Worn cylinder, piston or piston rings (section 11)
- Cylinder head:
Compression too high, overheating or knocking
Excessive carbon build-up on piston crown or on combus-
tion chamber

Excessive smoke
Cylinder head:
- Worn valve stem or valve guide
- Damaged stem seal - Worn cylinder, piston or piston rings (section 11)

Excessive noise
Cylinder head:
- Incorrect valve adjustment
- Sticking valve or broken valve spring
- Damaged or worn camshaft
- Loose or worn cam chain
- Worn or damaged cam chain
- Worn or damaged cam chain tensioner
- Worn cam sprocket teeth - Worn cylinder, piston or piston rings (section 11
Rough idle - Low cylinder compression

Thanks for the info. I wouldn't say its excessive smoke because it doen't blow out constantly when I how the throttle open and 9000 rpm. But when I hit the three time or more, it spits out puffs of smoke on each hit of the throttle. Also, when I do hold the throttle at 9000 rpm it the back pressure isn't consistentent and it sounds like a rapid "bahp bahp bahp bahp" sound.

Is this when you are riding, or are you revving it up in neutral? If it happens in neutral, ride it and have somebody follow you and have them watch for the smoke. It's not good for the motor to rev in neutral.

Ya it is when i rev it in neutral but my crew says when they follow me they can see puffs of smoke on occasion but not all the time. I have some hardcore carbon build up (all black looking like soot) on my Akra bolt on and its a little less than a season old which is about 8000 km worth of riding, 65% city 35% highway. I don't know if this is any indicatition of anything. I also was blip my throttle when I up shift too, is this bad to do?

no, that's not bad if you blip on the up, just means you're goofy. :P jfwy.

have you put different gas in it and ran it hard for a little to clear it's throat? maybe that and when was your last oil change? just curious.
because I have a friend that has a real similar thing happen with his bike and it show up more if he's gone way over on an oil change...

I just did an oil change, but it was doing this all last year too. I have run three or four tank of high grade Shell gas since getting the oil change this. This is the first time I have had the bike out all season, late start becuase it was super cold and raining for almost 2 straight months (stupid Canadian Mountain weather... Calgary, AB). I have never used a fuel stabilizer because I have heard bad things about doing so, but I have always left about a half a tank of gas in it both winters I have had the bike. I am going to use some Lucas Oil gas treatment in it to see if that cleans anything out.

If you haven't ran the lucas, yet don't.


if it's the oil one you'll fry your clutch disks. (possibly, in my opinion)

and your problem might be something way off from all of this...
but then again, just to play it along for piss off's sake it may be right on.



sorry.
I was reading back a bit and forth to now and I still am with olderRR. on this and that is that your exhaust valve may be out of adjustment in relation to the intake flapper.
slight possibility.

but do you ever take it up to redline? or close enough? just asking because it is weird that smoking would happen unless there is blowby from bad rings/ or worn valveguides, but since you say the exhaust is built up with carbon then it's not breathing right and it's running too rich.

and then comes the popping that occurs from ruinning too lean but that is mainly in the decelleration.

have you had your timing checked?

No the Lucas one I am running is the one for the gas for better fuel economy, cleaning fuel system, etc. Seems to running smother now but still getting puffs of smoke. I haven't checked timing but I will get the stealership to do that when the weather gets bad again.

I forgot to address the fact that no, I have not really taken it to redline, I usually shift aroung 7000-9000 rpm. What gear do you guys cruise around with for a given speed ie, what gear would you cruise and at what rpm would that be at for 55 miles and hour?

My 1000RR is usually between 7000rpm and redline. I get a couple puffs of smoke when I crack the throttle at around 8000rpm and a tiny bit on decel from redline or down shift under extreme engine braking. I saw this on video when my brother was following me at the track. No big deal.


Constant smoke is when you worry.

Ya there is no constant smoke, just on occassion from cracking the throttle like you said, according to people riding behind me.

The rapid popping sound from my exhaust usually happens when I am letting off the throttle just a slight bit or when I am increasing throttle just a bit too especially around the 4000-6000 rpm mark.

Listen bro..... I will say it again. take your air filter out and clean it REAL well then go for a short ride I would almost bet money that you got some oil in the air box. This happened to me more than few times.

Its oil from your crank case breather or if you have an aftermarket air filter that has to much oil on it.

If its not that then get ready to have yor valve sets redone..... Ching Ching

How do I go about removing my air filter to clean it? I have never done it before.

PC.................... WILL FIX THE PROB............

I switched my air filter to a K and N. Oly difference is there seems to be more reverberation coming from the air box when I hit bumps/dips in the road, I am assuming form the increased airflow. There were no signs of oil in the air box or on the old filter. It is still smoking when a I rev to 7000 RPM. Smells like gas not burnt oil. Its going into the shop this week.