Question about kawasaki Trigger SM 125 Motorcycles

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On a banshee one pipe is smoking and the other is not why is that and how do you fix it?

The tight exhasut pipe is smoking a good amount but on the left its only a little amount of smoke could the carbs be out of sync?

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Posted on Jan 02, 2017

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SOURCE: white smoke both pipes when started minute later gone away

White smoke indicates water in the combustion chamber. If the bike is still running okay I would keep an eye on the coolant level, make sure you're not losing any. Best guess is a blown headgasket. You can do a leakdown test or a compression test to check. If your headgasket is blown, two adjacent cylinders should show lower compression since pressure will be leaking from one to the other.

That's the kind of thing that probably won't run for long. Be sure and keep an eye on your oil level too, if you happen to be leaking coolant into the oil you can dilute the oil to the point it no longer lubricates very well.

Posted on Jan 05, 2009

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SOURCE: 91 kx 250 blows smoke and drips alot of unburnt oil out the pipe

Does it have a stock pipe,carb,any modifications! If its stock,I would put a new ring and piston in it,it seems like your getting a lot of blowby,also make sure your air filter is clean. It would help if you used an iridium spark plug.

Posted on Jan 21, 2009

  • 216 Answers

SOURCE: white smoke from one tail pipe

As u know - that smoke is oil . can be cause by restricted breather or oil filter, worn valve guide or seals. or a bad piston ring which seems the most likely if its just coming outa one pipe. A compression test will tell ya if thats it

Posted on Mar 13, 2009

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SOURCE: Blue smoke comes from exaust is it carb or rings

Blue smoke means oil is burning. The most likely reason is oil is getting past your piston rings because of wear. Run a compression check. If it is less than 150 psi it is time for a rebuild. It may run for a while burning oil and you will want to replace most of the parts anyway so it probably won't cost you much more money to keep running it until it dies. Just keep a close watch on your oil, if you run it out of oil it won't run for more than a few minutes.

Posted on Apr 07, 2009

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I have a 2004 banshee at the yamaha dealer being worked on.It would not run when i took it up there they cleaned the carbs and put it back together it will start but when you rev it, it holds itself wide open and wont shut down unless you pull the plug wires.they also checked the floats in the carbs said they where ok. they think it is a vent issue with the gas tank or the fuel shut off valve.IS THAT POSSIBLE

Posted on Aug 27, 2009

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sounds like loose bolts around the oil pan and most likely oil pan gasket. but first make sure your oil plug is properly tight.

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Losing oil way to fast

give the engine a good shampoo and wash then keep an eye around the valve covers and the oil pan, also make shur the your oil filter is tight, same with the drain plug, also make shur u don't have any bluesh smoke coming from the tail pipe, this could mean u are burning the oil in the combustion chamber, witch it shouldent do and can be a costly fix

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Exhasut is very loud i belive the flange is open whatsis the quickest and most in expensive way to fix this problem

Getting a donut and placing it between the the exhaust manifold collector and the exhaust pipe. Very cheap and easy to change. Go to Schuck's/NAPA/Kragen/Chief's...

Jan 04, 2010 | 1994 GMC Suburban

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theres a few things that can be happening here...Im not sure if its spitting out fuel, oil, or coolant, so ill give u a quick explanation of all 3 possibilities. first, there may be a blown crank seal. this ils the most likely of problems. im assuming that your engine still runs ok. but you have an excessive amount of blue-ish smoke and some oil coming out of the exhaust. this would require a very good technician to fix. the crankcases must be seperated to properly install a new seal.
second, you may have the same symptoms as stated above. but instead of the crank seal being bad, it may be the crankcases leaking oil. you see, theres no gasket between the crankcases. there is only a thin layer of a silicone-type gasket maker that yamaha uses to seal the cases. sometimes that thin gasket fails, and oil is allowed to leak into the crankcase, then is passed through the cylinder and exhaust. if you determine that it is oil burning, (youll know because of the very high amount of smoke compared to the left cylinder), split the cases and replace the crankseal, even if you think it may just be the gasket. they only cost about 8 dollars, and tahts cheap insurance.
third, it may be your head gasket leaking. unlikely, but a possibility. even though it would leak coolant into the exhaust, it can sometimes be mistaken for oil after it mixes with all of the carbon built up inside the pipes. youll know if its a bad head gasket if the bike is hard to start, and the coolant level in the radiator goes down after a short time riding. also you should notice that your engine bogs or sputters intermittently, but frequently.
finally, the last possibility is that your carburetor(s) arent adjusted properly. once you rule out the possibilities I listed above, then check make sure that your carbs arent overflowing. if they leak, then your getting too much fuel to your cylinders. if theres no leak on the carbs, then your jetting is just a little bit too rich. reducing the main jet by 1 or 2 sizes should help this problem. a good indicator of a rich condition is having to frequently change the spark plugs just for the bike to run properly.
hope this helps you out at least a little. if you have any questions or want anything clarified, feel more then free to contact me.

Jul 28, 2009 | 1986 Yamaha RD 350

1 Answer

What is reason for engine oil coming out of exhasut manifold

You are asking good questions, first the oil, I presume your vehicle is of high mileage? and possibly had a hard life with maybe late service intervals?
There are a few possibilities oil is being burned, first and this relates to your last question (Back compression) is worn compression piston rings, the compression of the combustion seeps past these and sends pressure through the oil scraper rings (Last set on the piston) increasing crankcase pressure which in turn forces a film of oil out of your breather pipe, the outlet is usually located on the air filter so it is drawn into the cylinders and is burned causing poor ignition and smoke from the rear.
Second and possibly combined is valve guide wear, the valves allow oil through their worn stems and seals causing a smoke haze, this usually clears a lot when engine reaches operating temp.
I hope this epic has clarified your query? please press the Blue Button for my Free! effort.
Thank You!
Paul 'W' U.K.

Feb 21, 2009 | 1997 Mitsubishi Galant

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You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.

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