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I'm blowing black smoke from the rear cylinder of my yamaha v Star 1300. I changed plugs cleaned air filter. No help. Cobra swept pipes. No power commander. Is this the problem or need new injectors?

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  • Yamaha Master
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Need to have the injector for that cylinder checked and the tip seal replaced

Posted on Apr 23, 2017

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Posted on Jan 02, 2017

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SOURCE: 4M40 engine lacking power and blowing black smoke.

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Install the egr mod, will stop it smoking in no time
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Posted on Dec 21, 2009

sisadsl
  • 1508 Answers

SOURCE: 2007 Yamaha 1300 V Star - Blows black smoke from

The black smoke means it is running a rich fuel mixture. first try a new air filter element, and oil change(incase fuel has flooded the sump).

Posted on Aug 30, 2010

heimlich
  • 1978 Answers

SOURCE: 2007 Yamaha 1300 V Star - Blows black smoke from

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.

Posted on Aug 31, 2010

czaa
  • 4904 Answers

SOURCE: I blew out my air cleaner filter but that didn't

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

Posted on Aug 31, 2010

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2007 Yamaha V Star 1300 fuel filter location


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one.
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How do I remove the fuel filter on a 2007 Yamaha V Star 1300


Hi, Fred for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one. 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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1 Answer

2007 Yamaha V Star blowing black smoke


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.
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1 Answer

1995 virago 1100 20k miles #1 roll more than 1/4 throttle and she takes off like a hyper charger with nitrous. #2 Right side rear cylinder gets extremely hotafter couple minutes of idle. All other sides...


Hey Anon,
Sounds like its time for a trip to the Qualified Professional to clean, check, and set the carburetors..along with a new air filter.
The black spark plugs are indicative of carburetors being in need of cleaning and setting!

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1 Answer

I have a 1996 yamaha royalstar tour classic 1300 and i would like to get some loud slash cut or straight pipes for it ,ive been looking to no avail can you help Thanks Jeff


Check Tucker Rocky. They are wholesale but I think their web site gives a list of dealers.
Look under Cobra exhaust. I have their 05 catalog from when I was a dealer and they do show pipes (4 different styles) for a Royal Star.

Sep 08, 2011 | 1996 Yamaha Royal Star XVZ 1300 A

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

Aug 31, 2010 | 2007 Yamaha Royal Star Tour Deluxe

1 Answer

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.

Aug 30, 2010 | 2007 Yamaha V Star Classic

1 Answer

Bike is back firing and black smoke is comming out of pipes on indle. It has Cobra speedsters exhaust system.


Black smoke could be unburnt fuel .Check your air cleaner unit it may need a change .And also check that your plugs and you have a spark on all plugs .

Mar 17, 2010 | 2005 Honda VTX 1300 C

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