Forums 🚥 PIT STOP 🔧 Hyosung Technical Help How to upgrade Fuel Lines & Filter on Hyosung GT125R GT250R (Carb Hose Diagram) Reply To: How to upgrade Fuel Lines & Filter on Hyosung GT125R GT250R (Carb Hose Diagram)

#4638
♠️ MARCEL
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Nov 30, 2017
@mf448kxn6
North UK
GTR
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Good afternoon Referring to Step 10:

 My tank doesn’t look like this. It’d only got 2 nipples where the fuel hoses connects to. Can you please clarify this for me? PS: you refer to the fuel pump as the “rear pump or pump at the rear”. Does this mean that there is (or should be) a fuel pump in the front aswell?

 

Hey.  If you have a tank thats only got 2 holes under it. You have a classic Comet tank which doesnt use a vacuum tap.

 

So each hole under tank (2 of them close to each other)

Goes down to the  MANUAL ON/OFF TAP that is mounted on the left side of the bike frame.  Usually older comets with Silver Frames have this.

 

Late models switched to vacuum taps (hence needing a vacuum pipe from intake manifolds to make turn on/off automatically.)  (& all GTR 125 whatever year they always are vacuum type taps)

 

REAR PUMP = It sits behind the rear engine of your bike.

As you saw in the pictures above ^. There is only 1 for all GT / GTR  from 125cc to 650cc carby bikes.  Its the same Mikuni unit Koreans use.   Carb is a Mikuni too 😉

 

 

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