New Biker - Hyosung GV 125 Aquila.

[Hammerstrike]

Hello,

I am a new member. Have just passed my CBT and have bought a Hyosung GV 125 Aquila.. The bike is good, very comfy and looks great, but the fuel consumption sucks. I have a 70 mile return trip for work, and it burned approx 10 litres of petrol . Anyone have any ideas/suggestions. I bought it expecting a cheaper travelling cost than driving my car, but this is no good..

Regards
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Hammerstrike

[Rogerborg]

[Hammerstrike]

Well, the bike was on main when i filled £10of fuel which was a bit more than 8 ltrs. On my way back it went to reserve with another 15 odd miles to go. No smell while driving.
How do i check the plug? New rider so not much clue. Bike runs fine, smooth, not slowing. I can get 70 as the top spèed but that is max and with full revs. Normally around 60 but still the revs are close to the max.
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Hammerstrike

[Dan100tdi]

Hi take the spark plugs out and check the colour of the tips this will give you a rough indication of how the bike is running

https://motogymkhana.pl/katana/how-to/spark-plug-condition-guide/

[WD Forte]

31mpg?
Jeez, I have a 3.5 tonne van does better than that !
Dont know the bike but would be disappointed if I didn't get
say 70 mpg upwards from a 4 stroke 125.

As said, check the plug first
(sounds like you need to RTFM and buy a plug spanner )
I'd stick a new one in as a matter of course on a new to me bike
If it is black and sooty I'd check the choke isnt stuck on.
and the air filter isnt gunged up,
After that it starts to get more technical as you'll need to
check the carb and other things which are more complex
than whipping a plug out, but easy enough after a while
if you do a bit of boning up and RTFM
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bikers smell of wee

[P.]

Check your choke isn't stuck on. Was common on the GT that shares the engine.

However, whip the air filter out too. Check the condition. You want to change the oil, filter, air filter and spark plugs before trying to dig deeper. Unsure if air box is the same on yours as the GT. But an SV650 k&n fits if you struggle to find a GV one...only if box is the same!

[A100man]

Hello H'strike

Welcome to biking. As teh other posters have mentioned your MPG is clearly not right. Nobody has said it yet but Chinese bikes have a pretty poor reputation and probably not well suited to a long, regular commute.

Really your best bet is to get shot of it (on the gound of looks alone - although I realise that's subjective) and use the money to buy a probably older Japanese bike - in fact any Japanese bike..

J

[MarJay]

[A100man]

[Rogerborg]

I believe that Hyosung aspire to the perception of Japanese quality. They're certainly chasing Japanese prices, or were before their sole importer gave up on them.

They may have got better recently, but the 2006 GTR125 I spannered was a seized up, busted-electrics dog that cost as much as its "bargain" purchase price again in replacement parts, from scrappies or direct from Korea.

Lovely looking bikes, interesting engineering. An 11kW DOHC 8 valve V-twin in a 125 in nice, but the bike is built to a budget same as everything else. On a 125, I'd go for simplicity every time.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[Hammerstrike]

Thank for the advice guys. I will be having a look at the plug and will update.

Cheers
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Hammerstrike

[Hammerstrike]

apologies for the delay. Problem sorted, apparently I was trying go max speed (70 Miles) which meant the rev were always max (in the red) hence the heave fuel consumption. Have tried driving at 50 mph on average and its now giving around 17 mpl, which is doable.

I do seem to have a loose chain, is it something I can fix myself or shall I take it in to a garage? Done have much clue on bike maintenance, can anyone suggest me something good to read?
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Hammerstrike

[P.]

Youtube, over and over. Gets explained AND you see how to do it

[Northern Monkey]

I rode my little 125 completely flat out yesterday, as I rode it up the hartside pass and around alston. It spent 90% of the time with the throttle wide open. It did 101 mpg.

On the way back, I rode it more normally, and got around 130mpg.

You shouldnt be getting anywhere near 30mpg on a 125 unless you ride it in 1st gear.
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Fisty: after polishing the tank with the glistenng beads of sweat from my full hot scrotum, I filled the headrace bearings with 10cc of my manmilk

[Rogerborg]

[Wull]

[bikertomm]

As others have said. Something is seriously wrong with that sort of MPG.

Sell it while you can & get something cheap and cheerful (and jap)
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07' Honda Hornet now full powaah! My guide on performing an oil change!

[asher_in_israland]

I get 23 km per litre (over 70 mpg if we're talking imperial gallons)on the way to work which is mostly heavy traffic on main roads
couple of things - my front sprocket is oversized adds another 5 mph at the expense of less acceleration, and secondly I NEVER touch the fuel tap, no need to, it's always "on" (unless I'm on my holidays wnd not touching the bike for ten days...), I found it leaks if you move it.
I'm very satisfied and have my eyes set on the 650...

[Rogerborg]

[Thomastodd96]

Hi,
Just bought a 2001 Hyosung Aquila gv 125, the previous owner has put straight pipes on it, and after riding it back from Scotland after pick up the bike bogs and lags at about 50mph in 4 th and 5 th gear, can anyone recommend the best exhaust to buy. Thanks.

[temeluchus]

[BusterGonads]

EDIT:

Sorry replied to an ancient post. Note to self: "Check dates before wasting everyone's time."
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2016 Triumph Street Twin; 2000 Honda CG125; 1997 Honda Nighthawk CB250

[Rogerborg]

[TravisBickle]

A mate of mine just put a deposit on a new GV125.

He's only got a CBT and wanted a V-Twin.

It's basically this or the more expensive Keeway.

I know there are some discontinued Japanese options to choose from but I think he plans on keeping it for a while (he's in his 50s and just wants something he can bimble around on with a CBT, I don't think he intends on ever doing DAS) and I don't think he wanted to get into the pain that comes with owning some ratty old 125 that dozens of 17yo kids have abused before him.

I tried to steer him towards a Japanese 125 (despite the general consensus these days being that Chinese 125s are just as good as Japanese, my nephew has had nothing but trouble with his brand new Lexmoto and ended up chopping it in for a 10yo WR125 which hasn't missed a beat since) but he's dead set on the GV125 for the V-Twin factor.

I get where he's coming from. It is kinda cool to have a 125 V-Twin. He can afford a brand new bike and let's face it I think the Chinese and Koreans are nearly up there with the Japanese now in terms of reliability, certainly on smaller displacement bikes anyway.

Anyway clearly it's going to be the new Euro 5 model with cat(s) but he wants to put a full exhaust on it, or at the very least decat it, to get a bit more noise out of it (and hopefully it won't sound as bad as most 17yo baked bean can single 125s, being a V-Twin albeit a 125 he's hoping it will be an improvement rather than just being obnoxious).

We've had a decent look around the net and nothing much is coming up for it but Leo Vince do one for the 2008 - 2015 model.

Anyone here got any experience with these?

Any idea if the 2008 - 2015 system from Leo Vince will fit on in its place, simply replacing the in-built cat(s) of the newer system?

Can the cats simply be knocked out or removed?

As it's only a 125, I assume it only has one cat, and as it's a twin cylinder machine that must surely mean if it does only have one cat it will be downstream from where the two pipes meet, as it's got a single exit can. That being the case may be easy to remove/bypass?

Are there places that would fabricate a bespoke exhaust for it?
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2007 Yamaha FZ1 S Fazer
2021 Honda CMX500 Rebel S
2016 Triumph Tiger 1050 Sport

[A100man]