Question about 1997 kawasaki VN 1500 Vulcan Classic

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1997 Kawasaki VN 1500 Vulcan Classic blowing black smoke out of the exhaust

I have a 1997 Vulcan 1500 classic that smokes real bad. All black smoke I know it is to rich and I've clean the carb and put new jets plugs wires and coils and it is still pouring black smoke @

Posted by Jim leach on

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Gregg Mahin

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  • kawasaki Master
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Hi, Jim 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 the right composition and everything is well burnt in your combustion chamber.
2. BLUE SMOKE on startup 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 startup 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 startup 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 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 for viewing or printing please click on the links below. Good luck and have a nice day.
https://www.vn750.com/forum/22-carbs-fuel-system/88561-earshaved-06-black-smoke-horrible-idle-what-next.html
https://www.vulcanforums.com/forums/16-vulcan-1500/290170-soot-coming-out-exhaust-idle.html
Kawasaki VN1500 Service Manual
OEM Parts for Kawasaki
1997 Kawasaki Vulcan 1500 Classic Owner Manual

Posted on Feb 22, 2019

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5 Related Answers

Anonymous

  • 73 Answers

SOURCE: 1997 jeep grand cherokee runs rich after long trips

Could have a bad map sensor. The Map sensor is located on the throttle body. I have seen countless Jepp that start blowing black smoke when they go bad. That would be a good starting place.

Posted on Sep 13, 2008

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pippall

Philip Long

  • 1486 Answers

SOURCE: 1997 Nissan pickup, 2.4liter, suddenly loses power

Check engine air filter.If ok remove and check injectors.

Posted on Jun 07, 2009

Dwain Pippen

  • 376 Answers

SOURCE: LT 1000 flooding gas out muffler and stalls, then pours in carb.

Check your oil. Does it smell like gas? If so, don't run it even if you could. You will fry your engine. The float needle and seat in the carb are leaking. In other words, the float needle is not shutting off the gas when the bowl is full. You need to have them replaced.

Posted on Jun 18, 2009

Anonymous

  • 11 Answers

SOURCE: Engine running rich?

worn float needle or obstructed airflow (plugged foam filter)

Posted on Aug 07, 2009

Brandon Undeberg

  • 174 Answers

SOURCE: golf cart smoking

It is most likely related to the rings, but running it would unstick them very fast if they were stuck. It's possible that sitting let rust develop in the cylinder walls and there may be some grooves in them now. They could also just be really worn cylinders. They make some oil conditioners which I wouldn't recommend on a car, but might work fine on a golf cart. I can't recall the name, but it was in a silver can, maybe called engine restore... You could always try that before resorting to a rebuild.

Posted on Nov 12, 2009

Testimonial: "thanks for your advice. I will try an additive before a rebuild."

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2005 Kawasaki VN 1500 Vulcan Classic blows black smoke


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 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 the right composition and everything is well burnt in your combustion chamber.
2. BLUE SMOKE on startup 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 startup 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 startup 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 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 for viewing or printing please click on the links below. Good luck and have a nice day.
Just got an 05 V2K Kawasaki Vulcan Forum Vulcan Forums
Black smoke out of the pipes any ideas
Kawasaki VN1500 Service Manual
OEM Parts for Kawasaki
2005 Kawasaki Vulcan 1500 Classic Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Apr 09, 2014 | 2004 kawasaki VN 1500 Vulcan Classic...

1 Answer

1997 kawaski vn 1500 Vulcan classic d raw fuel down needle value of carb


sounds like carb, is airfilter set up ok, it can act as an air restrictor to match the jetting

Feb 16, 2013 | 1999 kawasaki VN 1500 Vulcan Classic

1 Answer

Which setting do I use for the needle in my carb?


How many miles?? The needle jet/jet needle (brass kit) may need replacing ...they wear out due to vibration and cause the spark plugs to turn black, get poor milage, and then "carbon foul".
Try running it without the air filter for a few miles.. see if that makes it run better. If so, I would replace the air filter and put a new brass kit in the carburetor.
You can try moving the CLIP on the needle UP to the second to the top position, OR the top position..that will lean out the mixture/carburetor.

Kawasaki Vulcan 1500 Classic 1996 2004 Service Repair Maintenance

Sep 28, 2017 | 2002 kawasaki VN 1500 Vulcan Classic

1 Answer

1997 Kawasaki VN 1500 Vulcan Classic how to adjust the air-fuel mixture screw


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
98 1500 Classic Mixture Screw Adjusting Kawasaki Vulcan Forum Vulcan Forums
Pilot Air Fuel Screw Adjustment Explained
Kawasaki VN1500 Service Manual
OEM Parts for Kawasaki
1997 Kawasaki Vulcan 1500 Classic Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



Jun 08, 2012 | 1997 kawasaki VN 1500 Vulcan Classic

1 Answer

1997 Kawasaki VN 750 Vulcan has white smoke and running rough.


Hi, Walshy9587 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 the right composition and everything is well burnt in your combustion chamber.
2. BLUE SMOKE on startup 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 startup 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 startup 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 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 for viewing or printing please click on the links below. Good luck and have a nice day.
Sputtering White smoke Kawasaki Vulcan 750 Forum Kawasaki VN750 Forums
White smoke coming from engine Kawasaki Vulcan Forum Vulcan Forums
Kawasaki VN 750 Service Manual
OEM Parts for Kawasaki
1997 Kawasaki Vulcan 750 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

May 14, 2012 | 1997 kawasaki VN 750 Vulcan

1 Answer

A friend cleaned the filters and changed plugs when it started putting out back smoke. Shortly thereafter it starting losing power and put out more black smoke . He said the deck was dragging and the pugs...


Thanks for choosing FixYa and welcome. Since you are seeing smoke, it is usually a sign for rich gas and air mix. This could be caused by a choke that is slightly closed, a defective carburetor, or the carb may just need adjusted. You need to make sure the choke is completely open though. I would suggest cleaning the carb and adjusting it if necessary. Refer to your manual for the correct procedure. Check around your cylinder, head, and the shroud of the mower. Make sure the cylinder has nothing on it to cause smoking. See if cleaning the carb helps the performance. You may need to change the plug wires, if you didn't the first time. You could have a bad plug wire. Sometimes you get bad plugs but it is very rare to do so.

May 24, 2011 | Husqvarna Riding Lawn Mower Yth24v48ls 48...

1 Answer

My 97 classic is smoking at idol, and dumping fuel. Carb has been cleaned and the needleand jets have been changed (we even tried smaller ones). It is dumping too much fuel. When we adjust it, it either...


A plugged Idle Jet will give you an erratic idle (up,down,up,down) and also draw in liquid fuel instead of vapor. The 'O' Ring between the float valve seat and carburetor body and the Float Valve are the only two places the fuel may enter the fuel bowl. If the 'O' Ring or Float Vale is leaking the float cannot regulate the fuel level. To test a fuel pump you will need to test for Pressure and Volume.

Sep 02, 2010 | 1997 kawasaki VN 1500 Vulcan Classic

1 Answer

The bike backfires at low RPMs we just cleaned up the whole carb for varnish and dirt and it still does it. Thanks John


bout time to hav jets ajusted or replaced-please let a pro doit cause to lean or rich can blow ur engine

Aug 05, 2010 | 1997 kawasaki VN 1500 Vulcan Classic

1 Answer

Only runs half throttle


so, can you tell me what kind of carb was on the bike before? was it factory? and what kind of carb was just installed? blue smoke can be caused by burning transmission oil or a rich fuel mixture. that might be a bad crank seal or case gasket, or just improper fuel/oil ratio or improper jetting. black smoke on the other hand is usually caused by too much gasoline burning, but if there were enough gas entering the engine to cause black smoke, the bike probably wouldnt run at all. but, if you can give me more info on the carb swap, and if possible any jetting information or jetting changes, thenI can definitely tell you what your problem is.

Sep 04, 2009 | 2003 Yamaha YZ 250

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