Forums 🚥 PiT STOP 🔧 Hyosung Technical Help Flooded my bike help – GT250R
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♠️ M77.
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Sep 25, 2025 at 10:51 AM #20878Bike Model = : GT250R
Hi
Im a new rider and didnt know you could flood a bike. My bike was struggling to start so I held the accelerator. I did this a few times. What are the steps to fixing this. Is it just remove spark plugs and crank the engine to remove any excess fuel? (Maybe leave it for a couple days to evaporate?) Also is doing an oil change necessary? Are there any other steps I should take? Does the carburetor need something done to it
Thanks
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Sep 25, 2025 at 5:28 PM #20881
100% change the oil yes as you will have oil that’s fuel damaged , so if it keeps circulating , you may kill some small critical parts as it runs and find the oil will vanish quickly too (burning away rapid)
Carbs =
Disconnect the fuel tank and get a bucket, if fuel is dripping out of the tap away from the bike, then replace that fuel tap , as it will flood your bike or jam your floats in the carb overnight. And you may find the engine hydrolocked.Confirm float height is OK inside the carb , take a look below and look for my reply inside that topic which confirms the float height of the carb
Clean the spark plugs , but they may be fouled anyway (lost their potency to spark properly next time) so grab some fresh CR8E plugs. (Have 4 of them, so the other next 2 will be your backup, saves you running back & forth to shops)
Once the bike has its own drained, replace the oil filter = 1000% don’t skip this part & leave the spark plugs out, let the engine evaporate away but make sure the area where the bike is safe to do so as fuel vapors will be in the air incase a friend or relative in your garage decides to light a cigar next to the bike! 💥🚬
Cranking too much time would mean the carbs send fuel to the pistons but the engine needs to spark the fuel, so it can make sure as to why the engine got flooded, happens in cars too.
Test your coils and stator , use the topic below (Ignore that it says GT125R , it shares the same coils as its GT250R sister)
Rectifier – How to Test Stator , Battery , Regulator – GT125R Carby
Keep us posted & good luck . Hope my replies made sense
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