Question about 2008 Suzuki Boulevard

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Rough idling and backfiring on acceleration

Bike idles as though only one cylinder firing at times. Backfires on acceleration up to around 3000rpm. Smooth handling after 3000rpm

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: backfire during shifting between gears

could be few probs, carbon build up on piston crown try a good cleaner fuel additive, your exaust is leaking or blowing allowing air to be sucked back in on revdown as well as you could have a inlet fault overfueling leaving to much unburnt fuel to enter your exaust, might be simple fix by just replacing the air filter and checking for burn marks around the air intake.

Posted on Jul 10, 2009

ollie reece
  • 1167 Answers

SOURCE: bike idles on choke , engine dies on acceleration drz 400 e 2003

try using that redex stuff get back to me

Posted on Sep 25, 2009

  • 1 Answer

SOURCE: 83 suziki GS450 idle issues

the problem with the rubber was close but on the gs450 there is a metal insert that even if the rubber was rotted away the metal seals aginst the head so it cant leak. the problem is on the gs 450 suzuki used a cheap throttle cable that kinks behind the gas tank and kinks at the bend to the crabs under the set and the throttle system is a pull only not a dual cable pull push to always close the throttle. if you start the bike a wiggle the bend in the cable that comes out from the twist grip you will see it changes the idle. with either your finger or a screw driver and push the plate down on the carbs that the cable connects too. if the idle drops this conforms your problem. order a new cable from dennis kirk they have the revised one that has metal adjustment screw and metal clip in. better jacket casing as well.

Posted on Sep 29, 2009

  • 332 Answers

SOURCE: Rough idle and backfire at low end RPM

Spark plug or plug wire
After that look to your coil

Posted on Mar 30, 2010

  • 653 Answers

SOURCE: Rough idle and backfire at low end RPM

Many can cause this kind of problem, such as your jets are starting to clog-up, you have changed your jet-settings, you fuel bowl is not delivering proper fuel amount even dirty and clogged air filter can cause havoc,your ignition timing (magneto) has jumped (out of sequence because it is weaker sparks power), etc.
To start, does it idle properly after a good 3-5 minute warms-up in the past? Check you carb adjustments.
If this happened recently and you have not done or change any settings, try using carb-fuel jet cleaner from STP or Valvoline, etc in your fuel tank mixture when filling-up. Good enough?

Posted on May 17, 2010

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1 Answer

Rough idling , backfiring on acceleration


Sometimes, the easy solutions, are the best. Here are a few ideas. 1) Check your sparkplugs. Are they burnt? Are they gapped correctly? Are they the right plugs? 2) What kind of gas are you using? A lower octane fuel will not burn eficiantly enough, and could leave carbon deposits on the plugs.3) Check your air filter. After sitting for the winter, I suggest replacing the air filter, spark plugs, and engine oil, EVERY SPRING!

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1 Answer

My 1997 ford thunderbird stalls, idles rough, backfires, and has trouble accelerating


it could be as simple as your spark plugs, they may need to be checked for proper gaping and also check to make sure plugs are installed properly, could also be your timing might be off, could also be the throttle position sensor, these could all be effecting the fuel to air ratio, I would start with the easiest problem 1st......hope this was of some use to you.....

Jul 08, 2012 | 1997 Ford Thunderbird LX

1 Answer

92 NISSAN WITH BOGGING AT 2800 3500 RPM AND AT LEVEL SPEED 4CYL AND 5 SPEED


For this types of problem,there are few help inks to troubleshoot the problem.Click the link below to go through the troubleshooting procedure to resolve the issues :----Idles rough and quits when gas pedal is pressed less? http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html-----------van idles rough? http://howtobyme.blogspot.in/2012/01/2004-ford-freestar-van-idles-rough.html
--------------runs lean and idles rough? http://technoanswers.blogspot.in/2012/02/ford-runs-lean-and-idles-rough.html
-----------Car still runs Rough after tune up? http://howtobyme.blogspot.com/2011/12/car-still-runs-rough-after-tune-up.html
------------Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed? http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html
----------High rpm in neutral? Inconsistant high RPM in neutral? http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html
------------Engine Backfires? http://technoanswers.blogspot.in/2012/02/jeep-backfires.html----------- Nissan stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

-----------
Nissan Pathfinder Backfires? http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-backfires.html
---------How to adjust rpm? http://schematicsdiagram.blogspot.com/2011/12/how-to-adjust-rpm-on-2009-dodge-charger.html
------------Engine cuts out at 3000 RPM? http://schematicsdiagram.blogspot.com/2011/12/engine-cuts-out-at-3000-rpm.html
----------This will help.Thanks.

Feb 17, 2012 | 1992 Nissan Pickup

1 Answer

My 1990 Harley sportster 1200 is backfiring and won't idle without backfiring can you help?


Hi Anonymous, popping, coughing, spitting, or backfiring through the carburator or induction module is usually caused by air getting sucked in combustion chamber do bad intake seals leaking. Leaking exhaust gaskets can also be suspect. Remove air cleaner and backing plate, while engine is idling spray WD-40 or Brake Kleen around intake manifold to head area, if RPM's increase you have an intake leak and seals need to be replaced, also spark plugs will be burning whiter than normal. Good luck

Jan 05, 2012 | Harley Davidson XL 883 Sportster...

1 Answer

Changed all my sensers,fuel filter,cat. converter and intake gasket car still idles rough. Any other sugestions?


Are you sure all your cylinders are firing? If one or more isn't, then you would get a rough idle and cut off and possible backfires on the top end.

Jun 06, 2011 | 1999 Oldsmobile Alero

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Ford F150 engine backfiring, running/idling rough


I Have a 1999 ford f150 4.6 that back fires and is just running really ruff when idling alot of nack fire a sord of like a pulse going on what is my problem?

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1 Answer

Rough idle, sputtering, and backfiring.


try turning ur idle up its the pin on the throtle body just make sure u tuen the engine off and on again fter each adjustment to reset ur computer on ur engine

Apr 04, 2010 | 1994 Oldsmobile Eighty Eight

1 Answer

Check engine light shows misfires in two cylinders and backfires.


Yes it could. make sure to use the correct champion plugs as well. Make sure your firing order is correct as the intake shouldn't cause a back fire. 1-8-4-3-6-5-7-2.

Jun 29, 2009 | 1999 Dodge Durango

1 Answer

Gm 350 runs rough and back fires at idle after head replacment


Sounds Like a timing issue . If you rebuilt it i feel silly to ask if you set the timing to 12-13 BTDC . And also keep in mind it could be 180 degrees out (same marks yet still a little bit off...) Keep me posted with more info and ill keep replying

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