Question about 2005 Honda VTX 1300 R

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Backfires through deceleration - 2005 Honda VTX 1300 R

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Too much fuel on over run

Posted on Aug 14, 2013

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Posted on Jan 02, 2017

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SOURCE: backfiring on deceleration from exhaust pipes

May be running too lean or too rich. Check the color of your plugs, black dry and sooty means they are rich, white with blisters lean.

Posted on Apr 03, 2010

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Is backfire when decelerating a bad thing? : motorcycles


Jan 31, 2016 | Motorcycles

1 Answer

Why is my atv backfireing


BACKFIRE OCCURES DUE TO RUNNING TO RICH AND EXPELLED UNBURNED RAW FUEL EXPLODING IN TAIL PIPE.WHEN COOL AIR HITS IT FROM DECELERATION THE ENGINES SUCKING IN MORE AIR CAUSING IT..A LITTLE BACKFIRE IS NOTHING TO WORRIE ABOUT IF ITS A CANNON GOING OFF YOU NEED TO ADDRESS IT..THE FUEL TO AIR MIXTURE ISNT CORRECT..I WOULD LEAN IT OUT ALITTLE.

Feb 21, 2015 | Motorcycles

1 Answer

Yamaha dragstar


It is pretty normal for many engines to backfire while decelerating. Bikes have much shorter exhaust and much less sound control so it is much more obvious. If it is running good while idleing and while accelerating it's probably not a fault.

Jan 16, 2014 | Motorcycles

1 Answer

2007 yamaha yz450f... while riding last week it was backfiring on deceleration. it blew a 5 inch hole in the header pipe. i purchased a new one, cleaned the air filter, changed the oil and put a new spark...


Exhaust leaks near the exhaust port can draw air into pipe on deceleration and detonate any unburnt fuel leaving engine, causing backfire and high temps.
An overly lean fuel mixture on the engine can make decel backfire worse too.

Mar 13, 2011 | Yamaha YZ 450 F Motorcycles

1 Answer

Backfires on deceleration and also is getting black above shift side carb.


A lot of backfiring on deceleration is related to reused or leaking exhaust gaskets in the head . The gaskets are leaking air into the exhaust. If you are experiencing carbon on the intake side , I would recommend replacing the intake o-rings and gaskets, spark plugs, and spark plug caps. These can all be related to backfiring through the carburetors.

Aug 24, 2010 | 2005 Yamaha V Star 1100 Classic

4 Answers

Backfire


is it a straight thru exhaust, or is it just a head pipe with nothing attached? If it's just a head pipe, you need to get some sort of muffler on it or you'll burn your valves out from a lean condition. The backfire is due to the vaccum fed carbs that yamaha runs. They work wonderfully, but under heavy deceleration, the vaccum still feeds the bowl, and it builds up excess fuel, which eventually burns off as a backfire. If it were fuel injected, you could have the fuel map adjusted to lean it out under deceleration.

Jun 22, 2010 | 2001 Yamaha V Star 1100 Classic

1 Answer

Is popping or backfire normal?


Two things can cause popping or backfiring on deceleration. The most common is air leaking into the exhaust through the exhaust pipe copper o-ring gaskets. This typically happens when the exhaust is replaced without removing the old ones (doubled up) or simply reusing the old gaskets and they don't seal. The other thing that can cause popping is bad air cut diaphragms on the carburetors. If they are old and sticky or have holes in them they don't properly shut off the gas on deceleration causing the backfire.

May 06, 2010 | 2002 Honda VT 750 CD Shadow A.C.E. Deluxe

1 Answer

Backfiring on deceleration from exhaust pipes


May be running too lean or too rich. Check the color of your plugs, black dry and sooty means they are rich, white with blisters lean.

Apr 03, 2010 | 2005 Honda VTX 1300 R

1 Answer

Constant backfire on deceleration 88 chevy 4.3 V 6


Check for exhaust leaks. Esp Leaks toward the front of the car. Hold your hand over the tail pipe using a rag and see where the loud hissing noise comes from. Repair the leaks and I bet the backfiring goes away

Good Luck

Feb 09, 2009 | 2000 Lincoln Town Car

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