Triumphrat

kevstt6

i was riding my 2001 tt600 to work early friday morning around 40 degrees out and about half way to my job the bike started blowing out oil through my exhaust. It was heavy burnt smoke do to the oil burning up in my exhaust but the bike was cool around 185 and fresh oil and coolant still left in their resivours. No real ticking in the values and the bike was running smooth so i dont think it is the top end. 911 i need your help on potential ideas before i dare bring it to a bike shop and get raped on diagnostic fees. Thanks rats any reponses would help me sleep easier tonight.

ga_skyline_rydr

How many miles are on the bike? Some how or other oil is getting past the valves and rings and getting into the combustion chamber out the exhaust. Have had the oil changed recently? Also how did the coolant look, how did the oil look? Let us know.

kevstt6

the bike has around 10500 miles and the oil and filter has been replaced 1500 miles ago. As far as oil that is left in the engine it is clean, but as far as what is comming out the exhaust dark black burnt oil. I havent flushed the coolant or anything but what is in the resivior is clean. I do need to replace the air filter however i dont think they would be related

BombFactory

Quote:

Originally Posted by kevstt6 As far as oil that is left in the engine it is clean, but as far as what is comming out the exhaust dark black burnt oil.

If the smoke coming out of the exhaust is black then it is not oil, it is fuel. Black/Charcoal smoke is the sign of a rich running condition, while blue-gray smoke is oil, and white smoke (actually steam) is water/coolant. There could be a couple different causes of this. First off, what gas did you last put in the bike? You could have possibly gotten an old batch of gas if you went to a cheaper station, or is there any possibility that you mistakenly put any diesel fuel in the tank? What kind of ECM map do you have loaded? If it is a performance-type map then you could have major carbon buildup that is now blowing out. You might try running some fuel injector cleaner or SeaFoam in the gas to see if that will clean things out. If you use the bike as a commuter and rarely give the bike a good thrashing on twisties or straight-aways, the cylinders and head can become carboned up.

Aside from those possible causes it could be due to a malfunctioning Air Temperature sensor, or ECM. Judging from the mileage on the bike I would think it is not due to these parts, but it could be.

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kevstt6

everytime i ride my bike it typically sees alot of abuse in all 4 seasons of the year so i could rule the carbon build up out. Definately not fuel related, but still some how it is pushing past my values and the oil is not being contained inside my engine. Thanks for the help. I still need more if anyone has other ideas

ga_skyline_rydr

I don't mean to be a nut case here, but by chance do you stand the bike up. What colour of smoke are you seeing and how do the plugs look?

BBDGriptonia

Also check that breather tube. Just disconecting from air box and looking for fresh oil is easy and fast.

If you still can't find a reason, and you seem quite positive its not a fuel issue (i was leaning with Bomb on that one) get a compression check or Leak down test done. If the oil is getting past the rings, thats the number one reason for burning smoke, the test will help diagnose the problem.

Start the bike up, and once the smoke is coming out pretty thick, stick your hand in it for a moment, then smell. Fuel and oil have two very distinct scents.

If its fuel, i would check the mapping (weird it would change for no reason). Another one would be exhaust valves not closing all the way, and excess, uncombusted fuel burning off in the pipe causing the smoke and delicious smell. Another issue that would be identified via compression test.

Hope that helps!

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kevstt6

doing the compression test is where i am going to start off. I think you are right in the sense it could be a ring around the pistion where it is a compressioon ring or oil ring. Anyways i am a diverse rider and like to pull up the front up but typically i can only ride the wheelies out for less than a mile. Then agian the bike does see endos from time to time how do you think these two can be related? I hope to figure this out soon so i can get back out there with you guys but i think we are finally on the right track. THNX BROS. oh yea and the only reason the bike was actually smoking was from the fresh oil hitting the hot exhaust headers and then burning out my tail pipe

Will

Riding long wheelies will starve the top end of oil. Less than a mile is a whole lot longer than a brief wheelie from acceleration, so I would be concerned about oil starvation issues and your valves.

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