Buddy max speed 20 mph
Posted: Wed Jan 18, 2023 10:12 pm
Hello,
Our 2-stroke Buddy 50 was converted to 70 CC years ago and ran to 50MPH for years. Recently, it started stalling after twisting the throttle to full speed. I would need to shut it off, then restart and it would run fine again as long as I didn't twist the throttle wide open. I could ride all day to 45 MPH with the throttle at around 90%, but again, if I twisted to 100% it would stall soon after.
I replaced the fuel filter and lines with clear parts to assure I was getting fuel, then I cleaned the carb, changed the ignition coil and wire and changed the ignition module. I cleaned the air filter and spark plug which all looked well. None of these things worked. So I ordered a new reed valve and I also needed to replace my starter switch assembly on the handlebar so I got that too. When the parts arrived a week later I installed the new parts and found that the scooter wouldn't go over 20 MPH. Unfortunately, I had not tried to start and run the scooter just before I changed the reed valve and starter switch assembly, so I put the old parts back on; but it still will not go over 20MPH. So then I re-installed the old ignition coil, no improvement. Then I re-installed the old ignition module, but still stuck at 20MPH. I cleaned the carburetor again, still limited to 20MPH.
I removed the throttle cable from the handlebar so that I could be sure it pulled to 100%; then I rode while pulling the throttle cable. It still only goes 20MPH.
I am lost for ideas now. I thought that maybe there was a wire plugged or unplugged that limits speed but I can't find any discussion about that.
It is all strange that it was a 50MPH scooter then it suddenly only goes 20MPH with the throttle at 100%. The RPMs do not sound like they are going as high as they used to, but it does sounds smooth.
Any suggestions?
Our 2-stroke Buddy 50 was converted to 70 CC years ago and ran to 50MPH for years. Recently, it started stalling after twisting the throttle to full speed. I would need to shut it off, then restart and it would run fine again as long as I didn't twist the throttle wide open. I could ride all day to 45 MPH with the throttle at around 90%, but again, if I twisted to 100% it would stall soon after.
I replaced the fuel filter and lines with clear parts to assure I was getting fuel, then I cleaned the carb, changed the ignition coil and wire and changed the ignition module. I cleaned the air filter and spark plug which all looked well. None of these things worked. So I ordered a new reed valve and I also needed to replace my starter switch assembly on the handlebar so I got that too. When the parts arrived a week later I installed the new parts and found that the scooter wouldn't go over 20 MPH. Unfortunately, I had not tried to start and run the scooter just before I changed the reed valve and starter switch assembly, so I put the old parts back on; but it still will not go over 20MPH. So then I re-installed the old ignition coil, no improvement. Then I re-installed the old ignition module, but still stuck at 20MPH. I cleaned the carburetor again, still limited to 20MPH.
I removed the throttle cable from the handlebar so that I could be sure it pulled to 100%; then I rode while pulling the throttle cable. It still only goes 20MPH.
I am lost for ideas now. I thought that maybe there was a wire plugged or unplugged that limits speed but I can't find any discussion about that.
It is all strange that it was a 50MPH scooter then it suddenly only goes 20MPH with the throttle at 100%. The RPMs do not sound like they are going as high as they used to, but it does sounds smooth.
Any suggestions?