Question about 2002 Hyosung RX 125

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My xrx 125 starts up but when riding it theeres

My xrx 125 starts up but when riding it theres not much power when i go through the gears and i found a tube under the engine not connected to nothing with a smell of petrol

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Tube is probably OK. It may be a drain.
Perform a compression check.

Posted on Jun 15, 2009


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My grandson got a hyosung rx 125 bike. Want to know if the gearoil and engine oil go together or not

Hi, Barney the engine oil also lubricates the transmission 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 Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
HYOSUNG RX 125 Service Manual
HYOSUNG RX 125 Parts Catalog
2007 HYOSUNG XRX125 XRX 125 SM pdf
Hyosung XRX 125

Btw, I’m available to help over the phone in case u need at

May 21, 2016 | Hyosung Motorcycles

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I have a lack of power on my 2012 125 xrx.I checked the air filter , tried to drain the carburator in case theres any condesate deposits.Any suggestions please?

Check for debris in your fuel line; reset your carburetor screws to factory default (the fuel adjustment screws need to be turned all the way in clockwise which will cut off all fuel. reset the H and L to two+one half turns(should be going counter-clockwise at this point) and try starting your engine. Your H is max amount of gas that is allowed to pass thru the carburetor while it is being driven and your L is your idle rpm). You may have to make minor adjustments to the H screw to get it to respond as quick as the engine will allow. Be careful to not over-do the H screw as it will flood it in a few seconds. This is real close to turning a distributor cap on 25+year old model vehicles. Check spark plug gap and use non-ethanol gas. Ethanol residue builds up over time and can kill smaller engines.
Hope this helps.

Feb 19, 2016 | 2006 Hyosung XRX 125

1 Answer

Taotao atv 125

He has learned an expensive lesson on equipment abuse. Rolling backward "slammed" in forward ... probably broke a shaft somewhere. Just as '... there is no crying in baseball' ... there should be no 'slamming' of gears in driving.

Sep 08, 2013 | Motorcycles

1 Answer

My yz 125 dirtbike is stuck in 1st gear while its off and wont start up

try to compleatly shift down then half up with the clucth in

Sep 14, 2012 | 2003 Yamaha YZ 125

1 Answer

My yamaha ttr-125 making noise when in 2nd gear but no noise in any other gears

I agree it is a broken tooth on second gear in the trasmission. You will need the trans. rebuilt before riding further or you will jam the transmission, Break more parts, & possibly break the main engine cases. DO NOT RIDE !

Aug 26, 2012 | 2011 Yamaha TTR125

1 Answer

My honda atv 125 wont pull away in 1st gear

sounds like its running to rich..carb needs cleaning..check the jets to see if they are blocked

Dec 28, 2017 | Cycling

1 Answer

First gear wont return when selected on my honda cbr 125 but all the other gears are fine

1ST gear is directly off the crank and should always be there. R u sure the lever isn't bent or something to that effect? Good luck Happy riding... HDTV GURU JAY

Mar 17, 2011 | 2006 Honda CBR 125 R

1 Answer

XRX 125 and no pressure after blleding

sounds like your master cylinder seals have gone take the cylinder off and strip it replacing all the seals buddy

Sep 02, 2009 | 2002 Hyosung RX 125

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