Question about 2005 Hyosung GT 125

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Backfiring my hyosung is backfiring however ive checked my fuel lines and everything is fine and it only does it when im in first gear, any ideas and does ny one know were to get a manual for these bikes?

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Back firing, or after firing is usaully caused by an exhaust leak. Check around your header flanges for leaking.

Posted on Mar 06, 2009

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1 Answer

Hyosung motorcycles fuel line placement


Hi, Kevin for more information about your question and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Hyosung motorcycles fuel line routing Google Search
vacuum and fuel line routing
2008 hyosung gt250r fuel and vacum line diagram
http://files.hyosungmotorsusa.com/GT125_250_Service_Manual.pdf

Nov 04, 2016 | Hyosung Motorcycles

1 Answer

Hi mate my hyosung gt250r started randomly stalling while I was ridding, thought it was the kickstand cable, yesterday I went to start it started fine but cut off when I put it in gear, Anny ideas why


It does sound like a kickstand sensor issue, as the sensor only works when the bike is in gear. To check, you can bypass the sensor by disconnecting it's cable and then joining the two wires together so there's a permanent electrical connection. If that solves the problem, you need a new kickstand sensor.

May 12, 2015 | Hyosung Motorcycles

2 Answers

Throttle problems


  1. Fuel, Air and the lines.
  2. Tune your vehicle and get fuel especially from reputed brands like SHELL
  3. If water has entered your fuel tank this will happen, I mean Backfire and no response. This is till the water or air clears you know
  4. Service your vehicle from a person who is a specialist in Enfield's not any one.
  • Also update the city you live

Nov 18, 2013 | Enfield Motorcycles

1 Answer

Starts runs wont accelerate


It seems there is fuel starvation when you reach that speed or the spark plug seems to fail.
(1) Check the spark plug and also see if it's of a correct specs per the manufacturer's recommendation.
(2) There could be a blockage in the carb's main jet which restricts the flow of fuel at that speed.
Hope this helps!

May 04, 2013 | Hyosung Motorcycles

1 Answer

Cushman truckster suzuki660 throttle body stalls dies backfires no power


It could be many different things. Check Fuel pump, make sure you have clean fuel filters, spark plug... make sure your getting fuel coming out of fuel pump by disconnecting fuel line coming OUT of pump & start Cushman if fuel comes out steady stream pump works good. Add some Fuel Stablizer w/ new gas this will help your fuel system dramatically..

Jun 17, 2012 | 1993 Suzuki GSX 600 F (Katana)

2 Answers

Hyosung gt250r wont idle


hi mate does the bike have injectors or carbs as you have both in the description and i cant answer the question if i dont know what it is bud

Aug 30, 2009 | 2005 Hyosung GT 250

1 Answer

Ive just bought a suzuki gsx750f 1989 model it was running fine the first day and now wont start and backfires when im trying to start it can anyone help me?


Backfiring is typical for 'lean' conditions and stuck inlet valves.
check also the spark plug condition, replace them if any doubt on their age exists.
Check compression to discover open valves.
Clean out the carburettors.

Feb 23, 2009 | 1989 Suzuki GSX 750 F (Katana)

5 Answers

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 Hyosung GT 650 R

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