Hyosung GV 250 Aquila - Recent Questions, Troubleshooting & Support

Question edited for clarity. Question moved from Cars and Trucks category. It is called surging and is normally caused by air leaks on the inlet manifold. https://www.google.com/search?q=2014+hyosung+gv250+surging ..

I"SSUE WITH TANK? CAN BE SCUFF OR DENT? PROBLEMS WhIT A TAKE ARE BAD FUEL OR RUST INSIDE PROBLEMS MUST BE SOLVED , ISSUES we ignore. ( even sabotaged fuel, cap off and sugar put in)? NO HISTORY told for the bike. for 1 year back or more. find a real shop to fix it? i GUESS THE MOTOR CYCLE SAT A LONG TIME AND FUEL WENT BAD OR SOMe one put in bad fuel or wrong fuel in the tank? or Green carbon Sabotage.? this is like the classic motorcycle problem most sit way way too long. and end up with bad fuel, then bad filters and bad injectors.<< all are hard problems real not mere issues. do not post other persons problems ever ,only post your evidenced.all and did not. if spark is good the injectors are not working. clogged ,sticking or leaking tips, due to bad fuel used. injectors can only be pro cleaned. they have 10 micron filters inside so are reverse flow cleaned not just dusted off, in a perfunctory manor. why hold back the facts on the TANK. seem to me that is the real problem passed over and not told what.

Question edited for clarity. Question moved from MISC to correct category. It is cheap Chinese junk with no support. Try cleaning the Throttle Body and if it has a Mas Air Flow sensor, that as well. If the bike shop is stumped, you need to find a new bike shop :>) All this stuff is electronic and is diagnosed by a scan tool computer.

Don't waste your money on fuel additives, they will not fix your problem. You need to remove the carb, then remove the float bowl. Then remove the pilot jet and ream it with compressed air or a small piece of wire ( a bristle from a wire brush should work) Hold the jet up to the light and make sure you can see day-light through it. Do the same to the main jet. Most likely it will be the pilot jet that is clogged.

Change or clean the fuel shut off valve

Before I blame anything, I would check to see if it is getting gas, and if it is, how about spark? Then I would know which way to go, if no spark, how about the coils.? The stator is rare, they do go bad, but rare. and the cdi, Last thing I would check. Check the wires, check the fuses, check the spark, then squirt some fuel in the cylinder to see if it will fire. If you can borrow a coil, do it, just to try it. Hope this helps.

Time for carb cleaning , blow the jets with compressed air,check the float level.
Check the spark plug and replace if neccessary.
Check the air filter too, and if you don't have an 'inline' filter for your fuel line,install one.
Basically yr bike's engine needs a tune up...check the valve clearance too!
Hope this helps!

try looking at the timing

maybe the oil is boiling and turning into gas..

Make sure your gas cap is venting. Maybe, next time it dies loosen the gas cap see if anything changes.

Hey Buddy, you may want to check your gas tank overflow vent or tube to make sure it isn't plugged therefore not allowing air to enter your tank as you burn fuel, some of these vents are located on your gas cap, if you can't find it, ask a mechanic to show you where it is.

If you are returning it to the dealer from which you purchased it and they are unable to rectify the fault. And if it developed this fault within any guarantee period they may have given. They are legally liable to refund your purchase price or replace the bike with one of equal value.

does it run through a relay? have you checked the cables for electrical continuity? if you don't have a tester you can use a small 12v bulb on some wire for this purpose of testing.

This problem should be re-tagged gv650.

It's not your clutch, it's the kickstand killswitch. I had the same issue.

If you look down next to your kickstand on the left hand side you'll see a silver switch (looks like a mushroom), follow the cables up to the front end of the chasis near the sump and you'll find a black connector with two wires coming out of it. You can either bypass the connector using a piece of wire or just do what I did and clip the wires, wind them together and crimp them in a connector.

Start your bike and hey presto - problem solved.

Hope this helps.

If you can get to the solenoid,, take a screwdriver and jump the two large threaded terminals .... the engine should turn over. BE CAREFUL - SPARKS WILL FLY!! If you jump the terminals and nothing happens - one, the battery is bad (shows 12 volts but has 0 cold cranking amps) - two, you have a wire that is not in the right place! Check this and repost to me.

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 )

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.

spark plug wrench