Question about Yamaha TT-R 250 Motorcycles

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Hi, i have a ttr 250 1999 model, its blowing smoke, but my piston and rings are fine. what do you think it could be

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I have a 2009 TTR 230 with about 5 hours on it and it just started to blow white smoke out of the exhaust. Any Ideas?

Posted on Mar 13, 2011

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A malfunctioning carburetor (running too rich) , will blow white smoke. I would start by checking the choke plunger, the seal could be leaking fuel. The plastic cap that holds the plunger on could be cracked and not holding the plunger in all the way. If you have re jetted the carburetor, perhaps the jet is too big. Your air filter could be plugged with dirt. All these things could cause a rich condition that would cause white smoke.

Posted on Sep 12, 2010

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1997 mazda e2000 van which is blowing black smoke


if it takes 5-10 mins of running before black smoke disappear i think you could have broken rings causing engine oil into the combustion chamber. you could observe white smoke if you have just changed oil.
solution would be to replace piston rings. it would save u a lot if u could diy.

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2001 ttr 125 smoking problems


Hi, Anonymous your instrument gauges and lights can alert you to most electrical and engine issues they can not warn you about failed engine gaskets or seals so your engine has to resort to the old fashion method of colored "SMOKE SIGNALS" here is a breakdown of their meaning:
1. WHITE SMOKE on start-up can is usually caused by a blown head gasket allowing coolant to enter the combustion chamber and may start dripping out of the exhaust pipes or mufflers.
2. BLUE SMOKE on start-up is usually caused by failed valve seals. Smoke that is constant while riding is usually caused by valve to guide and piston ring clearances that have exceeded service wear limits.
3. BLACK SMOKE on start-up is usually caused by too much fuel in the combustion chamber this can be due to air/fuel mixture adjustment too rich, accelerator pump improperly adjusted, faulty choke/enrichner or not in the off position, faulty carburetor float needle and seat, pilot jet too large, fuel injectors leaking, smoke while riding is usually caused by the main jet being too large.
It should be noted that aggressive or abnormal throttle operation will cause these conditions to manifest themselves exponentially.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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http://mybikemanuals.com/yamaha/yamaha-tt-owners-manuals

Apr 13, 2013 | Yamaha TT-R 125 L Motorcycles

1 Answer

Ttr50 oil blowing from vent tube


Hi, Lee oil level readings are taken when the engine has reached normal operating temperature and the usual suspects are:
1. Overfilled oil tank dipstick reading should at or below full.
2. If the sight glass is full you are running to much oil.
3. Excessive blowby caused by worn out piston rings.
4. Piston rings never properly seated.
5. Faulty breather valve or system.
6. Pinched or clogged breather line/hose.
7. Clogged or failed oil filter.
8. Contaminated oil dirt-rust-water etc.
9. Excessive oil foaming.
10. Wrong oil type not designed for your bike.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a wonderful day.
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Sep 24, 2012 | 2010 Yamaha TTR50E

1 Answer

2005 toyota corolla blowing smoke


Blowing black smoke means fuel mixture is too rich, possible choke is stuck partically closed.
Blowing white smoke especially driving off the traffic lights indicates either worn valve guides or worn piston rings. Valve guides require the head to be removed to replace valve guides.
Replacing piston rings means a major engine repair. It maybe better to get a reconditioned motor than replace worn piston rings because other worn engine parts should be replaced at the same time.

Jul 16, 2012 | 2005 Toyota Corolla

1 Answer

My yamaha ttr 110 is blowing white smoke out of the pipe but I can't see if its even burning oil there is no leaks anywhere and it hasn't used a drop of oil please help


Hi, Bmx_910 your instrument gauges and lights can alert you to most electrical and engine issues they can not warn you about failed engine gaskets or seals so your engine has to resort to old fashion alert methods of colored "SMOKE SIGNALS" here is a breakdown of their meaning:
1. COLORLESS OR SLIGHTLY BLUE SMOKE on start-up means your air/fuel mixture is at the right composition and everything is well burnt in your combustion chamber.
2. BLUE SMOKE on start-up is usually caused by failed valve seals dripping oil into the combustion chamber when the engine is not running.
3. YELLOW OR BROWNISH SMOKE at start-up means your air/fuel mixture is too lean. Too lean means that there is low fuel but high air mixture in your combustion chamber.
4. WHITE SMOKE on start-up may be caused by a blown head gasket allowing coolant to enter the combustion chamber and may start dripping out of the exhaust pipes or mufflers. Smoke while riding is usually caused by worn out or damaged valves, seals, guides, pistons, rings, or cylinder walls.
5. BLACK SMOKE on start-up is usually caused by too much fuel in the combustion chamber this can be due to air/fuel mixture adjustment too rich, accelerator pump improperly adjusted, faulty choke/enrichner or not in the off position, air filter dirty and clogged, faulty carburetor float needle and seat, pilot jet too large, fuel injectors leaking, smoke while riding is usually caused by the main jet being too large or a damaged carburetor.
It should be noted that aggressive or abnormal throttle operation will cause these conditions to manifest themselves exponentially.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
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Apr 03, 2012 | Yamaha TTR 90 E Motorcycles

1 Answer

Hi I have a Suzuki TS185er 1993 model. The bike has recently had its piston replaced. However it is blowing smoke whereas before it didn't. The smoke is a whitish blue colour. Any help will be...


whitish blue is oil burning. its kinds normal for a little while until new rings seat in for one to smoke a little. run it for a while then repost.

Jul 09, 2011 | Suzuki TS 185 Motorcycles

2 Answers

BLUE SMOKE FROM AUDI RS6 ON DE ACCELERATION AND START UP THINK OIL STEM SEALS ARE LETTING OIL THROUGH. CAR RUNS FINE I THINK, AND EXCESSIVE BUILD UP OF OIL IN DRIVER SIDE TURBO PIPE, 62000 MILES WITH A...


General rules of thumb: Low speed engine on acceleration with smoke in the exhaust plume = worn piston rings High speed engine accelerating (spooled up turbo) with smoke = oil form turbo bearing and/or piston rings Engine on over run (coasting down, foot off the gas) with smoke = oil from valve guides. VW/Audi make good engines with tight tolerances so none of the above should apply at 62K miles; just make sure that the oil (the right oil) and oil filter are changed regularly.

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1 Answer

Hi, I just bought a stock 2003 ttr 125. The bike had been sitting for years and barely would run. I took the air filter out and it was full of gasoline. I took the carb apart and cleaned all the gummed...


Piston rings may be sticking after sitting for so long. It may serve you well to remove the top end, paying special attention to the timing alignment as you do. Visually inspect the piston and rings. ensure the rings can move freely in their grooves. Look at the piston for signs of blow-by. A burned up surface of the piston that extends past the rings onto the skirts. You may simply re-ring this machine and it would solve your problem if you view these problems.

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4 Answers

Yamaha ttr 90 dirt bike


well i had the same problem with my old ttr 90 it smoked realy bad so i took off the top end an looked at the piston rings an they were fried so i bought a new piston rebuild kit an put it in an changed the oil an it ran like a champ an didnt smoke so thats what i think ur problem is

Oct 11, 2008 | Sport & Outdoor - Others

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