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Hey man Im just wondering if you can help me solve this issue I’ve been having on my 50cc motorized bicycle: Bike starts but will not stay running for more than a minute at idle, and will bog down and die out even quicker than that if I try to ride it. I took off the carburetor, and cleaned it. I replaced the spark plug, CDI, magneto, fuel tank, throttle cable and killswitch assembly. (Not at the same time, one by one) The bike seemed to be great for about 2 minutes and then started experiencing the exact same problems. Notable occurrences: -the bike sat for the whole winter in the shed which is not climate controlled. -when I pulled it out of the shed, I decided to try my luck at riding it as is (bad gas and all), and to my surprise it ran pretty decently. Only after about 15 minutes of riding did the bike start experiencing these issues. -the gaskets are in rough shape, especially the one on the crank case (magneto case) -when I leave the fuel valve on for about 30 seconds and prime the bike, it starts right up and wants to go, but will die 30 seconds later every time without fail. The last point leads me to believe the issue has something to do with fuel but what the hell could it be? I’m grasping at straws here as you can tell from me commenting on a random persons video. Please help 😂
It sounds like you have an air leak, if your crank case is sucking in air it will cause a world of issues. Definitely replace seals and make sure your crank cases are perfectly sealed. It's a two stroke so fuel and air is sucked into where the crank sits before it gets put in the combustion chamber
I have been running a 125 main jet, but fueling must be adjusted for many variables, it's best to start tuning on a rich needle and then work your way down to find the correct fueling for your engine and location
another way to check if float if sitting properly is to line up the seem of the float to the edge of the carburetor where the bowl attaches to the carb
BOGGIING = UNBURNT FUEL LOW CYLINDER COMPRESSON LOW CRANKCASE VACUUM / COMPRESSION FLOODING CARB. CAN ALSO BE COIL GOING BAD STOP CABLE RUBBING EXHAUST RESTRICTED WITH CARBON PLUG FOULING BLOCKED AIR FILTER BLOCKED AIRBOX WORN PISTON RINGS OR ALL OF THE ABOVE
Hey! Nice video. I'm plannig to replace my spekers also, but I dont know what kind of speakers to buy and I dont know the size of the speakers. What kind of speakers did you use? Please be kind and help a dude:))
Hey man, idk if you'll reply on such an old vid but guess it's worth a try. I've got an old 50cc 2 stroke (suzuki fz50) and it runs perfect on straights and only struggles a little up hill but once its warm it bogs and cuts out every time I stop like at traffic lights and then when it starts again it sounds really strange for a couple seconds until something seems to click and it runs fine again. I'm getting good spark and compression, any ideas?
