Reply To: GT125R wont start
cptpickle I am sorry to hear that, electrics are a daunting subject that is actually very straight foward. You can do it and I can show you how, I am a qualified electrical engineer. The wiring loom and connectors can look like a big nasty birds nest wrapped in tape, you do not have to unravel the birds nest just test accessible bits of it.
You just need a simple multimeter for a £5 and some contact cleaning spray again about a £5. It should cost you nothing more to get starting circuit working and the spray will most likely cure the indicator gremlin. As you have said already the bike’s bolts were decayed badly, that means she has stood outside alot so some of the exposed wiring connectors and switches will be dirty and perhaps have some corrosion – easily fixed with the spray.
You will measure resistance if you have to test if wires and see if the connections are good (resistance shown by an solid triangle pointing to a vertical line or the ohms setting shown by an Omega symbol on the multimeter). For voltage being present you want use D/C current (a straight line with a dotted line below – A/C is a wavey line). You would use A/C settings to test output from some stators before the rectifier – your stator works fine.
You have an earthed negative frame that is always the negative connected straight to the negative on the battery via a fat copper wire. This makes it easy using a multimeter as any exposed metal (engine case / frame bolts etc) is an earthing point(negative) for the multimeter. To track electrical faults is a methodical task but not difficult one.
I have a GV with all the same wiring, wire colours etc and can post pics on where and what to check. Also Marcel has seen almost every issue with Hyosung, he always helps.
I will see if I can track down a wiring diagram for the GT/GTR, this will give us an easy guide to follow with wire colours and routes etc.
You have already overcome the largest problem and the starting circuit is just a minor wrinkle in the whole show. Most people would run away at the thought of an engine change – hellfire, you did it first time and it runs!
If you sell on now you will give somebody a bike that you fixed all but one or two very minor issues. They will quickly clean the connections and be quids in
You can do this – easily!