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What would cause a 1500 Vulcan to backfire when you let off the throttle?

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Anonymous

Master 518 Answers
Posted on Jul 07, 2010

Anonymous

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Joined: Jul 03, 2010

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Do you mean =out of the carb or out of the exhaust,,well carb backfiring is a very weak mixture and its still burning when the inlet valve opens ,and exhaust is that there is a air leak at an exhaust joint and the heat of the exhaust with the air leak ignites unburnt fuel

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I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

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What would make my 1997 Vulcan classic 1500 backfire through exhaust and lose power and stall when you applied the throttle

Exhaust valves tappets too tight, or burnt/bent exhaust valve

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Why is my kawasakivn1500backfireing

Backfiring is a sign that you have an air leak somewhere. Check the vacuum lines on the throttle body, they become old and crack.

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Where is the fuel filter located for a 2001 kawasaki vulcan 1500 classic

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The solution is simple. Clean the carbon ring out of the throttle body throats using your choice of scrubber (old toothbrush, Q-Tip etc) and some carb/throttle body cleaner. Hold your throttle all the way open or use your throttle lock to do it while you scrub the ring away. Now, ladies and gentlemen, start your engines! And enjoy a nice smooth idle again. BTW if you turned the idle up so the engine would run you'll probably find it's now idling way too fast. Crank it back down to the recommended 950 (or whatever your owners manual recommends).

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Mar 17, 2013 • 2001 kawasaki VN 1500 Vulcan Classic

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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

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Feb 16, 2013 • 1999 kawasaki VN 1500 Vulcan Classic

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Have a 2000 vulcan 1500 classic with 29600 miles up until the other nite it has run great i change oil when she needs and do annual services on her. With out warning she went to backfireing and not...

just a thought and not too sure but check exhaust is tight at cylinder head.

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Sep 06, 2011 • 2000 kawasaki VN 1500 Vulcan Classic

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I left the fuel in the tank over winter and did not put stabilizer in the fuel. This has caused some issues with backfire and stalling. Engine idels well but when I get into higher gears backfire and...

Now's the overdue time to stabilize your fuel, Buddy!

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Nov 29, 2017 • 2001 kawasaki VN 1500 Vulcan Classic...

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I have a 93 vulcan 1500 that backfires thru the exhaust when you let off the gas. What can cause this?

You have stock exhaust? If not, that's your cause.

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May 31, 2010 • 1996 kawasaki VN 1500 Vulcan Classic

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My friends Vulcan is backfiring thru the carb. Any ideas on what may cause this problem?

Check out the inlet tappet clearance as they could be to tight OR
A burnt out inlet valve seat having a slight burn trace or a Cracked seat OR the timing is out of wack by 1 or 2 mm.
Once you have check out the above and fixed the problem you will be riding high . Ron

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Nov 11, 2009 • 2000 kawasaki VN 1500 Vulcan Classic

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2000 Vulcan Nomad 1500 FI - Bike was sitting for 6 years. Drained the gas, cleaned the tank and fuel pump, changed oil & filter, new air filter. Made sure the drive system had oil etc. All looks...

You need to remove the carbs and dismantle them completly and adjust them to spec. Also change the fuel filter.

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Oct 28, 2009 • 2000 kawasaki VN 1500 Vulcan Classic...

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I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

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What would cause a 1500 Vulcan to backfire when you let off the throttle?

1 Answer

Anonymous

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Related Questions:

I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

What would make my 1997 Vulcan classic 1500 backfire through exhaust and lose power and stall when you applied the throttle

Why is my kawasakivn1500backfireing

Where is the fuel filter located for a 2001 kawasaki vulcan 1500 classic

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

Have a 2000 vulcan 1500 classic with 29600 miles up until the other nite it has run great i change oil when she needs and do annual services on her. With out warning she went to backfireing and not...

I left the fuel in the tank over winter and did not put stabilizer in the fuel. This has caused some issues with backfire and stalling. Engine idels well but when I get into higher gears backfire and...

I have a 93 vulcan 1500 that backfires thru the exhaust when you let off the gas. What can cause this?

My friends Vulcan is backfiring thru the carb. Any ideas on what may cause this problem?

2000 Vulcan Nomad 1500 FI - Bike was sitting for 6 years. Drained the gas, cleaned the tank and fuel pump, changed oil & filter, new air filter. Made sure the drive system had oil etc. All looks...

Not finding what you are looking for?

2000 VN 1500 Vulcan Classic

I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

Ask a Question

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Sean Wright

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Trustworthy Expert Solutions

What would cause a 1500 Vulcan to backfire when you let off the throttle?

1 Answer

Anonymous

Add Your Answer

Attachments: Added items

Related Questions:

I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

What would make my 1997 Vulcan classic 1500 backfire through exhaust and lose power and stall when you applied the throttle

Why is my kawasakivn1500backfireing

Where is the fuel filter located for a 2001 kawasaki vulcan 1500 classic

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

Have a 2000 vulcan 1500 classic with 29600 miles up until the other nite it has run great i change oil when she needs and do annual services on her. With out warning she went to backfireing and not...

I left the fuel in the tank over winter and did not put stabilizer in the fuel. This has caused some issues with backfire and stalling. Engine idels well but when I get into higher gears backfire and...

I have a 93 vulcan 1500 that backfires thru the exhaust when you let off the gas. What can cause this?

My friends Vulcan is backfiring thru the carb. Any ideas on what may cause this problem?

2000 Vulcan Nomad 1500 FI - Bike was sitting for 6 years. Drained the gas, cleaned the tank and fuel pump, changed oil & filter, new air filter. Made sure the drive system had oil etc. All looks...

Not finding what you are looking for?

2000 VN 1500 Vulcan Classic

I have a 2007 kawasaki vulcan 1500 classic fi ... I love the bike bit when it start to warm up it seems to miss really bad and decelerating it backfires and pops ... what could my problem be ?

Related Topics

Ask a Question

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