Can I still drive a nearly 30-year-old 4-stroke engine to its limit?

Hi, I have a question about my 30 year old Yamaha engine (Fk250). Since it's a bit older, I don't know if I can still rev it to the limiter. Max RPM is 10,500, but I've never driven it above 8,500. With proper maintenance (always plenty of oil), can I drive it normally without worrying…

250cc scooter stalls after choke fails. But starts again?

Hello, dear community, I'm really at my wit's end. I have a 250cc Benzhou Cruiser here. It starts without any problems and responds to the accelerator very well. However, as soon as the choke fails, the revs slowly drop until the scooter turns off. Just before it turns off, it stops responding to the accelerator….