Bike only runs on one cylinder once moving – 2009 gt250 carby
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Bike Model = : 2009 gt250 carby
hi all, I have a 2009 hyosung gt250 comet I bought as a project for myself, when I bought it didn’t run or drive at all. Well after replacing the plugs, coils, all fuel and vacuum lines and cleaning all the jets I got the bike to idle strong. My problem happens whenever I start to move only the rear cylinder fires and the bike will only go 40ish at wot. I also changed the jet size it 95 front and 97.5 rear and deleted the fake egr, however it had the same issue before this. All help is appreciated!
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Does it accelerate OK at 1st to 3rd gear ? and what RPM is 30mph ?
Grab a fresh set of CR8E , fit them in and ride for a short distance, come back, let it cool down, take the plugs out , take a few pictures and upload them here, so we can see what’s going on?
Either we have a fueling problem or the HT Caps (not coils) are waning or the carbs themselves need attention.As it’s idling, spray carb cleaner on the rubber intake pipes and find out if the revs change ? (It could be a good idea to change the O-RINGS under the intake pipes as if they are caked up dry , old etc, they will cause all kinds of weird issues when the vacuum system is not sealed tight.
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