Question about 2007 Yamaha V Star Classic

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2007 Yamaha V Star blowing black smoke

I have a 2007 Yamaha V Star. And it started blowing black smoke from the pipe going to the rear cylinder. It won't idle at all. When it's running it it's rough as hell.

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Hi, Quentin 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.
Bike running rough puffing black smoke after carb rebuild
Why Black Smoke soot
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
YAMAHA XVS1100 Owner Manual

Posted on Apr 23, 2017

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When my bike is running I get white smoke from the right side exhaust and the right side also blows harder than the left. What could this be?


IF you are running stock pipes (not "True Duals"), the right pipe exhaust ALL from the front cylinder, and SOME of the rear, and the left pipe only blows SOME of the rear alone.

The stock rear pipe splits, some going to the left pipe by itself, and the rest going to the right pipe WITH the exhaust from the front cylinder.

Now, white smoke usually indicates moisture.
Being a (non-VRod) Harley, that eliminates the liquid coolant, because there is none.

Next up that comes to mind is condensation.
BUT, this would burn off fairly quickly.

So is the white smoke only at first, or even when warmed up?
And if warmed up, is it actually coming OUT of the pipes, or OFF the pipes (like some oil burning)?

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1 Answer

'07 V-Star leaking oil at the rear cylinder exhaust pipe seam


i just average joe, but i vote broken ring...sorry pal.. i recently repaired a bike...same thing was happening...in my case, the thing just had too much oil in it , so much so that it was backing into carb...jus a thought

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Yamaha V-Star '07 1100 oil leak at rear cylinder exhaust pipe seam


hard call ! compression test , but sounds like your going to get your hand dirty ! P...

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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.
smoke coming out of crankcase breather tube
Ttr 110 and Sdg 107 blowing smoke
2009 YAMAHA TTR 110 SERVICE REPAIR MANUAL PDF DOWNLOAD Download Manuals... $10
OEM parts for Yamaha
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1 Answer

2004 v star 650 back cylinder does not fire


Hi, Lenbart1961 you are not getting fuel to the rear cylinder or it is not timed correctly for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. 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.
http://www.starbikeforums.com/forums/49-v-star/12250-rear-cylinder-not-working-05-vstar-650-a.html
Will not fire on rear cylinder Yamaha Star Forum
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
http://www.starmotorcycles.com/assets/service/manuals/2003/LIT-11626-16-05_22.pdf

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1 Answer

I blew out my air cleaner filter but that didn't help my bike still cuts out. I switched plugs (exact same as came out) pipes are still black inside. situation: 3 days before it did this it ran fine - I...


never leave a bike in hard rain-water was forced into carb areas like the air jets and now its runnin rich causing incomplete burnin--need to take it off engine and dry it out-and air blower from a tank works-but if bad disasemblys in order

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2007 Yamaha 1300 V Star - Blows black smoke from pipes - pipes are black - cuts out - I replace plugs with exact plugs that came out - put a can of heet in gas tank - dies out if you throttle hard -...


If you have changed the air cleaner intake in any way , or the exhaust system in any way , you probably need to put a Power Commander on the cycle. If you have a Power Commander on the already, you need to hook your motorcycle back up to your computer and try a different map for your CDI box. Fuel injected motorcycles are very precisely made. They do not have the ability to compensate for changes you make to the intake and exhaust. By adding a Power Commander, You get the ability to change the fuel injection/power curve to match the changes made to the stock set up. To fix your bike you have to either put your bike back to stock ,or add (or remap) the Power Commander. If your bike is stock and giving you these issues, take it back to the dealer and have the fuel injection system checked out.

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1 Answer

2007 650 yamaha vstar popping through the rear cylinder exhaust


First off did you buy it new? Second has it gone through its break in tune up yet?Did you do the re jeting? My guess is it was re jeted wrong & neeeds to be re jeted again or could also need more air(upgraded air kit) or a tfi or power comand fuel mod.My bike also poped untill I did the air & fuel upgrades & them upgrades will also give you a much needed house power needed for this rig.


Bring it to a shop & have it looked at.......


Good luck

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