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SimonParticipantThere’s no adjustment on the efi it’s controlled by the ECU, it could be a dirty injector or air filter there is also a chance the O2 sensor is playing up but that only comes into play at certain times, try putting some injector cleaner in.
SimonParticipantIs it carbs or fuel injection
SimonParticipantI did fit an led complete unit to my old gt250 & it was a great improvement but it is hit & miss to getting a good one you also need to do some wiring changes so not a straight forward job.
SimonParticipantIt sounds like your shock is gone, make sure you sort it & be careful, suspension problems are rare but do happen.
SimonParticipantHi there welcome aboard
SimonParticipantyuasa batteries are the best
Aug 8, 2025 at 5:19 AM in reply to: Persistent “ticking” noise even with clutch pulled in Hyosung Aquila GV125S #20423
SimonParticipantSounds like the valve clearance need checking.
SimonParticipantYour going to have to look for burnt wires, I’m almost certain that the rectifier has gone & most likely the stator this would have been the burning smell. It could well have caused over voltage which would have damaged other things. Look under the seat for 3 yellow wires & start there.
SimonParticipantCheck the charging system of the bike.
SimonParticipantIt’s a newer disc nothing to worry about, it just adds an extra layer of caution. Back when I used to do that sort of measurements I would measure 4 points to get an average but the problem with that is if someone doesn’t realise that & just measures one bit it could be ok but another area is compromised so making a larger safety margin is a good thing.
SimonParticipantI would add you can get cables from Wemoto they are a proper shop & having purchased in the past they are perfect in fitting & size
SimonParticipantHave you tested it?
SimonParticipantWell it’s going to be a fuel injection one I assume, with the stator burned out the rectifier is almost certainly toast until that side is sorted it’s going to be a nightmare, if the voltage isn’t correct then the ECU will just play up.
SimonParticipantHi there
Jul 5, 2025 at 1:15 PM in reply to: Can You Parts Swap Between Suzuki SV650 and Hyosung GV650 ? #19917
SimonParticipantA lot of the bits are the same the early gt250efi uses coils from the sv650, a master cylinder is a master cylinder it’s really just a case of the mounting points
SimonParticipantI’m not a fan of the lithium batteries being fitted to bikes that don’t have them as standard they require a slightly different charging setup, one of the things to check is the coils & if standard the plug caps which at that sort of age can cause all sorts of problems.
Jun 28, 2025 at 10:57 AM in reply to: Help with new wiring harness 2009 GT250r EFI Fuel injected model #19873
SimonParticipantCheck power to the ignition switch, ECU wont effect lights
Jun 26, 2025 at 10:14 AM in reply to: Help with new wiring harness 2009 GT250r EFI Fuel injected model #19860
SimonParticipantIm struggling to remember what the 2 pin connector at the side goes to, it’s definitely not emissions stuff, I have a feeling it might be fuel gauge
SimonParticipantHi there
Jun 21, 2025 at 5:16 AM in reply to: Valve Oil Seal Size / Required Tools ? – Hyosung GT250 GT125 GV250 #19819
SimonParticipantYou can get valve compression tools that cover all sorts of size valves for only a few quid which will do the job
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