20 Most Recent 2005 Hyosung GV 250 Aquila Questions & Answers


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?q=Wiring+diagram+2005+Hyosung+GV+250+Aquila&tbm=isch&source=univ&sa=X&ved=2ahUKEwjIiJDquZ7iAhUGKqwKHW6HDYkQsAR6BAgIEAE&biw=1440&bih=757
https://www.manualslib.com/manual/865104/Hyosung-Aquila-250.html?page=202
Hyosung Aquila 250 Service Manual
https://alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 Ei Owner Manual

2005 Hyosung GV... | Answered on May 15, 2019


maybe the oil is boiling and turning into gas..

2005 Hyosung GV... | Answered on Sep 03, 2018


Hi, Sherri for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Hyosung, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
2005 Hyosung GV250 Aquila vent hose routing Google Search
Charcoal Canister
Hyosung Aquila 250 Service Manual
http://www.alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 User Manual

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2005 Hyosung GV... | Answered on Nov 30, 2017


Hi, Sherri if you have changed your fuel delivery system, air filter size or flow rate, mufflers or exhaust system or a significant change in altitude your carburetors need re-tuning and if your fuel system (gas tank, filters, fuel valve and carburetor) is contaminated with ethanol sludge, varnish, rust, dirt, water etc. or your bike has been sitting for months or years without running these components must be "PROPERLY" cleaned and reassembled "CORRECTLY" before any adjustments can be made. Tuning your carburetor is fairly simple once you understand the basic principals. You engine is a simple airbox sucking air in and blowing it out, it is finely tuned at the factory for maximum performance once you upset that delicate balance by changing air filters, camshafts or exhaust systems your performance may go down the and the engine may run poorly, you need to compensate the air-fuel mixture in the carburetor in order for the engine to run smoothly and at peak performance. If you are running multi carburetors you need to sync them first and make sure your air cleaner element is clean and dry for paper elements or lightly oiled for foam and meshed elements and properly installed. Here is how and where you compensate trouble: "TIP" if your engine "BOGS" you're not getting enough fuel.
1. Close to 1/8 throttle is managed by the air screw and pilot/slow jet.
2. 1/8 to 1/4 throttle is managed by the air-screw, pilot/slow jet, and throttle slide.
3. 1/4 to 1/2 throttle is managed by the throttle slide and jet needle.
4. 1/2 to 3/4 throttle is managed by the jet needle, needle jet, main jet, and air jet.
5. 3/4 to wide open throttle is managed by the main jet and air jet.
6. Wide open throttle is managed by the main jet.
If you are running lean, spark plug electrode color is white, engine runs hot and feels like it is starving for fuel you need to go up on the jet size or move the c-clip down one notch. If you are running rich, spark plug color is black or dark gray, the engine runs cool, and bogs down when accelerating you need to go down on jet size or move the c-clip up one notch. When your carburetor is properly tuned for maximum performance your spark plug electrode will be a light tan color like coffee with cream. If you prefer fuel economy over performance you can go down on main jet sizes until a satisfactory level of lower performance is acceptable versus MPH, your spark plug color will be whiter and your engine will run warmer. These tuning adjustments will only make improvements if your intake and exhaust system have no air leaks or sealing issues and the entire electrical system is in proper working order and you have no mechanical issues.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Carburator Theory and Tuning
hyosung gv250 carb balance with 2 bottle manometer
Hyosung Aquila 250 Service Manual
http://www.alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 User Manual

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2005 Hyosung GV... | Answered on Nov 18, 2017


Hi, Larry for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Hyosung, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
hyosung gv250 starter gear install
starter clutch hyosung gt250r
Hyosung Aquila 250 Service Manual
http://www.alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 User Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



2005 Hyosung GV... | Answered on Oct 06, 2017


Hi, Anonymous in the back of the service manual is a wiring diagram otherwise the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
3. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Tilt sensor needs a reset.
11. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
2005 Hyosung GV250 Aquila wiring diagram Google Search
Need help with no spark issue
Hyosung Aquila 250 Service Manual
http://www.alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 User Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Hyosung GV... | Answered on Oct 04, 2017


Hi, Manny before testing any electrical component in the Charging System it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage, the battery is faulty and must be replaced. AGM type batteries fall into this scenario more so than lead acid batteries.
1. Battery Test:
The battery needs to be a fully charged and load tested to ensure proper readings, connections need to be clean and tight. If you are not working with a fully charged and functional battery, all other voltage tests will be incorrect. Standing battery Voltage should be 12.5-13.2 DCV.
2. Charging System Voltage Test:
Start motorcycle, measure DC volts across the battery terminals you should have a reading of approximately 13.2-15 DC Volts.
3. Connections and wires:
Inspect the regulator stator plug, and check the battery terminals for connection corrosion. If everything seems to be in order, move on to number 4 below to determine if there's a failed component.
4. Stator Checks/Rotor Check: Each of the following tests isolates the Stator & Rotor. If AC output and resistance test fail and stator test passes then the rotor is at fault (Pull Primary covers and inspect rotor for damage).
5. AC Output Check:
Unplug the regulator plug from the stator start motorcycle and change Voltmeter to AC volts. Probe both stator wires with your meter lead. The motorcycle should be putting out approximately 18-20 ACV per 1,000 rpm. Reading will vary depending on system, check service manual specification
Generic Specs:
22 amp system produces about 19-26 VAC per 1,000 rpm
32 amp system produces about 16-20 VAC per 1,000 rpm
45 amp system produces about 19-26 VAC per 1,000 rpm
Stator Resistance Check:
Switch your multimeter to Ohm x 1 scale. Probe each stator wires with meter leads and check resistance on the meter.
Resistance should be in the range of 0.1-0.5 Ohms. Reading will vary depending on the system, check the service manual for specifications.
Generic Specs:
22 amp system produces about 0.2 to 0.4 ohms
32 amp system produces about 0.1 to 0.2 ohms
45 amp system produces about 0.1 to 0.2 ohms
5. Stator Ground Check:
Switch your multimeter to Ohm x 1 scale.
Probe each stator wire with your positive lead on the multimeter and the negative to ground.
There should be no continuity to ground on either wire.
If there is continuity your stator is shorted to ground and must be replaced.
6. Regulator Test:
Each of the following tests isolates the regulator only, so if any of these tests fail, the regulator is at fault.
Identifying Wires:
Battery Charge Lead- Wire going from the regulator to battery positive.
AC output leads- Wires coming from the Stator to the regulator.
Ground- Wire from Regulator to ground or regulator may be grounded via the physical bolting to chassis.
Regulator Ground Test: Ensure the regulator body is grounded or grounding wire is fastened tightly to a good ground (you should verify this by checking continuity from the regulator body to chassis ground).
Fwd/Reverse Bias Test/Diode Test:
This check is testing the Diode function to ensure it is regulating the AC current for the stator into DC Current.
Switch multimeter to Diode Scale.
Place your Multimeter positive lead on each AC output wire.
Place your multimeter negative lead on the battery Charge wire.
The meter should read voltage typically around .5 volts.
Next, switch your multimeter leads putting the negative lead on the AC output wires and the Positive lead on the Battery Charge Wire. The reading should be Infinite. With your meter on the same setting, place your multimeter positive lead on the regulator ground wire or to the regulator directly, and then place your meter negative lead on the AC output leads.
The meter should read voltage typically around .5 volts.
Next, switch your multimeter leads putting the negative lead on the regulator ground and the Positive lead on the AC output wires. The reading should be Infinite.
Note: Below is a table to show the readings:
Positive Lead Negative Lead Reading
AC output 1 Battery charge lead Voltage
AC output 2 Battery Charge Lead Voltage
Battery charge lead AC output 1 ?
Battery charge lead AC output 2 ?
Ground AC output 1 Voltage
Ground AC output 2 Voltage
AC output 1 Ground ?
AC output 2 Ground ?
For more information about your issue and valuable "FREE" downloads for viewing or printing that you will need please click on the blue links below. Good luck and have a wonderful day.
2009 Hyosung GV250 Battery not charging Fixxit
http://racetechelectric.com/files/pdf/rte_troubleshooting_flow_chart.pdf
Hyosung Aquila 250 Service Manual
https://www.alpha-sports.com/Parts/H_GV250.htm
HYOSUNG GV250 User Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

2005 Hyosung GV... | Answered on Aug 16, 2017


fix the leak first the see if you still have a problem
it could have the float level set too high or have an incorrect main jet size ( drilled out by a previous owner wanting more power )

2005 Hyosung GV... | Answered on Jun 04, 2017


I had the same exact symptoms with my bike and it suprised meto fInd my Idle/aIr screw was actually mIssIng, It screws In vertIcally to my keIhn carb and hD vIbrated completely out. I dont know If thIs Is what your problem mIght be but Its a good place to start lookIng from the symptoms you seem to have

2005 Hyosung GV... | Answered on Mar 24, 2012


ARE YOU GETTING A SPARK AT ;PLUG REMOVE PLUG HOLD AGAINST ENGINE BLOCK TURN OVER ENGINE YOU WILL SEE SPARK OR FEEL IT IF YOUR UNLUCKY BE CARFUL IF NO SPARK TRY CHANGING SPARK PLUG LEADS COULD BE U/S GOOD LUCK [FROM THE AUTO ELECTRICIAN]

2005 Hyosung GV... | Answered on Mar 24, 2012


The generator is called a statter. The battery is going dead cause the voltage regulator is bad. Worked on hyosungs for 5 years. Never seen a statter bad Voltage regulator is located under the seat MOPAR KENNY

2005 Hyosung GV... | Answered on May 23, 2011


try looking at the timing

Hyosung GV 250... | Answered on Sep 13, 2018


sounds like a fuel issue for sure. If you haven't done so I would suggest cleaning out the carbs and re-adjust your floats if needed.

Hyosung GV 250... | Answered on Apr 06, 2017


Hi, Don for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Hyosung, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
http://korider.com/index.php?topic=8054.0
GV250 time chain problem
Hyosung Aquila 250 Service Manual
http://www.alpha-sports.com/hyosung_parts.htm
HYOSUNG GV250 User Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Hyosung GV 250... | Answered on Mar 20, 2017


spark plug wrench

Hyosung GV 250... | Answered on May 28, 2016


Hi, Jawahir and the usual suspects are:
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Discharged battery, needs to be 12.5 volts or better and be able to pass a load test if necessary, check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
4. Bank angle sensor tripped and ignition/light key switch not cycled to the "OFF" position and then back to the "ON" position.
5. Faulty starter button/switch.
6. Faulty kickstand or clutch pull in switch/sensor.
7. Security alarm needs a reset.
8. Starter control circuit, relay, or solenoid faulty.
9. Main fuse or circuit breaker may be blown or faulty.
10. Electric starter shaft pinion gear is not engaging or over-running starter clutch slipping.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
gv250 starting problems
http://www.alternativecruisers.com/index.php?action=printpage;topic=10801.0
http://meiguohosting.com/How-to-fix-start-problem-for-your-2011-Hyosung-GV250-Aquila-EFI
2008 Hyosung GV250 Aquila Starting Problem
http://files.hyosungmotorsusa.com/GT125_250_Service_Manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Hyosung GV 250... | Answered on May 11, 2016


Hi Larry, for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix or parts inquiry. If necessary transport your vehicle to the dealer or shop and have a professional technician take it for a test drive, if it is in running condition, and give you a written estimate of repairs and answer any specific questions you may have about your issue. Good luck and have a nice day.
http://www.hyosung.com.au/downloads/manuals/GV250.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Hyosung GV 250... | Answered on Oct 05, 2015

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