Question about 2005 Hyosung GT 650 R

5 Answers

Backfire Extremely powerful/loud backfires often on startup and always when decelerating on the highway

Posted by on

5 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I have a2008 GR650S and had the same problem. Bought the secondary air injection kit (see link) and the problem as solved. However it does affect the anti-polution compliance for the bike. Fitting the blanking plate to the rear cylinder is difficult.

http://www.epfguzzi.com/hyosung/accessories/AIS.html

Posted on Jul 24, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Mate i had the same issue. Just got my first 1000km service. I had a leak in the fuel line causing some petrol to get into the exhaust. common problem but easy fixed. was told the line just cracks sometimes.

Posted on Feb 17, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Do you have a aftermarket exhaust? If so then your bike probably wasn't re jetted after the exhaust was installed. A rejet kit is like 50 bucks, try that.

Posted on Jan 31, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 2,712 Answers

Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Posted on Nov 10, 2008

  • Connor Roth Apr 23, 2013

    How would i go about fixing the Timing on the motorcylce. Clueless on it :/

×

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Go to a mechanic because the fuel-to-air mixture is 'rich' that's why it backfires

Posted on Jun 16, 2012

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Truck is backfiring and missfiring.


Have the misfire diagnosed and the backfiring will be fixed also. The backfiring is caused by the "over-rich" fuel mixture in the exhaust stream and is igniting within the exhaust. Fix the misfire (which will cause the rich condition) and the backfire will be gone.

Mar 24, 2014 | 1994 GMC Sierra

1 Answer

Backfire louldly on deceleration


One of the carburetors could be sucking in air through the vacuum port. Had a similar issue on a thruxton. Triumph puts a rubber cover on them. Sometimes the rubber cracks and sometimes the covers just fall off.

Nov 18, 2013 | 2002 Triumph Bonneville America

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

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2004 Husaberg FS 450 e

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2004 Husaberg Fe 650 e

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2000 Husaberg Fe 501 e SM

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2004 Husaberg FE 450 e

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2000 Husaberg Fe 400

1 Answer

Backfire


Backfires are when fuel travels through the cylinders without combusting then explodes in the exhaust pipe. Fuel supply/combustion issue. It seems likely there's a problem either with the mix going into the cylinders (carbs fuel lines or air intake), or with timing. These can affect a bike at particular speeds and throttle positions. If using the choke has helped at some point that's a further indication (the choke changes the gas/air mix). ,,,

Nov 10, 2008 | 2005 Hartford Legion HD-125L

1 Answer

Runing lean


has good power and I got a great deal. I just ordered the Clymer manual (3-5 days delivery) so I am posting here to see if you folks have any quick suggestions. I noticed that the engine has a slight backfire/sputtering on deceleration and would take a while to warm up so I was thinking that it was running a little on the lean side. There was also some minor bluing on the exhaust. I took the plugs out last night and they appeared to be fouled. They were coated with carbon (not wet oil). Now I was thinking that it might be running a little rich. I cleaned the plugs and re-gapped at .0035. The engine seemed to warm up quickly but the it was still sputtering a little when downshifting and decelerating. What do you think this is? yeah backfiring while decelerating or downshifting can mean that you are running a little rich. I adjusted the idle screws on my bike to make that problem go away. Makes sense since as you slow down you normally release the throttle to virtually closed anyway... I havent had that problem since. Except now I get backfiring while riding at highway speeds... methinks my carbs are being flooded and the float levels need to be adjusted.,,,

Nov 10, 2008 | 2008 Benelli Velvet 125

Not finding what you are looking for?
2005 Hyosung GT 650 R Logo

1,017 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyosung Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

68970 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22026 Answers

Are you a Hyosung Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...