What exhaust is on the bike?
Does it have a power commander?
Have you done a plug chop?
How many miles are on the bike?
What type of weather are you riding the bike in?


This is the type of info we need to help you

 

What exhaust is on the bike?
Does it have a power commander?
Have you done a plug chop?
How many miles are on the bike?
What type of weather are you riding the bike in?

This is the type of info we need to help you

Thanks man,

OEM exhaust, though I have noticed there are no cables for the exhaust valve on the undertail muffler.
No power commander
What is a plug chop? The previous owner may have, IDK.
about 9500 miles

I'm in Dekalb, and work in Aurora.

 

nevermind on the weather...you live near me.

What town are you in?

 

map sensor or tps may be screwey. but hearing of a stock 07 running rich is kinda crazy.

 

Mine occasionally, smells really rich too but that is usually when I'm on it hard and downshifting hard. I do have a slip on though.

 

A plug chop is running it, under load, up to just before red line and and hitting the kill switch.

Promptly, pull the plugs to see what they look like.

wet brownish black plugs = running rich...too much fuel
ashy dry white plugs = running lean...too much air

I don't know much about the stock exhaust so you may want to wait for a more experienced member to chime in.
Mine just turned 10k miles and don't have thes issues.

I was leaning towards it running rich from a modded exhaust, but that usually makes them run lean.

I dunno man

 

I'll give that a try tomorrow.

 

it has to be either a sensor or a bad coil. there's not enough gas to damn near any late model bike. they all run near scary afr.

 

you lost me. I dont know if it's grammer or what but you lost me

 

i hav3 the same problem on my 06 ninja but damn im madddd noob bro i need help my gas milage lol is like 170 kilometers per tank i do drive aggresively but i was at the gym and about to leave when this oldddd dude looked like he was like 50 drives a ducati but he smelt it and like yeah it is running very rich and if i had it tuned lol and hes telling me if im comfortable swinging the back out a little and im just like :| thinking in my head fuck cant even drop my knee to the ground yet lol but yeah i dno what i should do if i should take it to the dealer or a shop or something need one in Toronto Sauga Woodbridge or brampton someone i could trust. and thats like lasstttt resort that i would do that

Toronto weather before i went on vacation it was like 16-18 degres celcius but tommorow is 24 see whats good still tmw

Yoshi exhaust slip
Jumper mod
15,000 kilometers on the bike

 

dirty airfilter will make it run rich to... i would also take a look at the plugs to see if they need to be changed while your under the tank.

 

^^^^^ how did i do that?

 

very carefully...

Yeah my guess is it needs new plugs. But, it's just a guess.

 

if i was to do this how would i check the plugs change the filter to a k&N one to and if i was to remove the gas tank do i have to like take out gas and if so how would i do that

 

Well, here's where I've gotten so far. I have to go get a long 4mm or 3mm allen to take off the air box assembly, but here's the joy of buying a second hand bike, and what I've found...

This ground was not connected:

I'm guessing there's a hose that comes off this sensor:

Also, this line has been cut, but it looks just like a vent line.

I'm going to have to take a look at the shop manual to see what that ground is for, if/where there's a hose for that sensor. The air cleaner is pretty clean, and there's no blockage in the ram air tube.

I'll keep you guys posted as I dig more into this. Unfortunately, I have to go to work for a little, so I cannot get more done til later today.

 

Glad to see your gettin your hands dirty. Keep us posted

 

that sensor is supposed to have a hose running to it. it's your map/atmospheric pressure sensor. that's likely the bulk of the problem.
I would definitely tighten the ground before you fry some electronics.
The vent hose being cut not so big of a deal as long as it's routed properly.

 

Thanks for the info so far guys. I checked the shop manual, to check the ground connection, and connected that back up.

I'm hoping that the air pressure sensor hose, not being there, is the problem. I found where it goes to via the manual diagrams, and I'll inspect it tomorrow, once I pull the air box off.

I'm going to pick up some allen sockets on my way to work tomorrow, so I can pull more things apart. I've got pretty much every hand tool under the sun, from working on old broken Porsches, but this is really the first bike I've worked on.

 

good luck bro... who ever disconnected that hose was an idiot. i'm sure that's the problem.

 

I really hope it is. That would make for an easy day for him.

 

i know it's almost too easy but blatantly obvious if you ask me.

 

Well, I got a chance to work on the bike this evening. The hose that was supposed to be coming from the air pressure sensor, was routed to the air box oil drain. This meant that crankcase oil and fuel/water vapors were going into my vacuum synchronization tubes.

I got some vacuum hose from the local auto parts store, and used it for the oil drain and also made a new tank vent line. The bike is missing the little oil catch can, so I routed the hose back up, to capture crankcase fluids.

Here's pics of the fun:

I'll take the bike out for a ride tomorrow, to see if this resolved the issue. I'd do it now, but I kinda had a few too many beers working on the bike.

 

The bike runs 10X better. The horrible un-burnt fuel smell is gone. It idles and runs smoother than before.

One of the grounds was for my coolant temp sensor. The gauge was spastic when I bought the bike, but the bike wouldnt overheat or anything. I'm guessing the other ground was for the fan switch.

Thanks again for at advice guys, and for what to check out.

Ima get back to riding.

 

Dude, you don't even know how excited I am for you. I wish I could have been more help.

Kudos to hulkman who actually had some good advice.

Have fun and be safe.