Hyosung GT250R – Joblot
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Hey,
Apologies for the delayed response. Life has been hectic and I haven’t been able to focus my attention on the bike, but I’m back now.
Here are the details:
Frame is from a 2016 Hyosung GTR125R (Carb) & the rest is from a donor 2007 Hyosung GT250R (EFI). We decided to do a little project and did a full transplant of the 250 into the 125 frame. This includes the tank, loom, CDI, forks, dual rotors, breaks, engine and speedometer. We had to make some slight alterations to the frame to make the 250 airbox fit in the frame, along with the engine. It’s not perfect, but very hard to notice unless you’re looking.
So, all was good. We did the conversion, wired everything up and started her up, she burst into life and sounded delicious. However, what we didn’t realise is that the fuel pump and lines had never once been changed. They were old, solidified and showing their age and this proved to be true when whilst out on a test ride, the fuel line split open and started leaking fuel everywhere. We managed to run the tank waste pipe as a temporary fuel line to get it back to the garage.
The next thing that went wrong was the fuel cap. Unfortunately, the donor didn’t come with a set of keys, as it was already disassembled. So we had a fuel tank that we couldn’t open and we were given the bright idea to try to drill/smash the lockset open. It worked, but at the cost of the seal/inner tank being separated from the shell. We improvised, and used a mixture of petro-putty and improvised metal brackets to hold the seal, a temporary fix. When the fuel tank is full of petrol, it seeps through and spills over the tank, causing the paint to strip.
Next problem, the fuel pump plastic feeder tube running directly to the injectors snapped off. So, we had to dremmel through the top and create a new feeder tube and block the old one. Which has left the bike in a sad state really. It runs and rides, but it has a fueling issue. There isn’t enough pressure being created from the pump, so the bike struggles to accelerate under load.
It needs a new fuel pump, a fuel injection model tank without rust and realistically, it wants all of the fuel lines replacing again with the correct gauge/size fuel line. I’m contemplating doing this at the end of the month and stripping all of the fairings and having it resprayed, but life has been hectic and I’ve had to put my tinkering with bikes on the sidelines. A part of me wants to move away from Hyosung, it has served a brilliant project to tinker with and teach me the fundamentals of messing, but to say I’m sick of the sight of it is an understatement.
I know the 250 engines are difficult to come by, so if someone here is interested in taking over the project then I’m open to the idea. The bike deserves to be in capable hands, as it’s a little beaut.
Open to swaps, or offers. No price in mind really, just not looking to lose too much money here.
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GT125R
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