I got a little bit down SYM scooter totally cheap. It’s about a Jet 4 as 4 timer. I tried to get into, nothing. Carburettor dismantled, but that was so rotted, only garbage. I ordered a new one and built in. As far as everything is good. Once starter press, runs. First a little high-touring, then normal. If I gas, it swallows, but stays on. If the engine is a little warm, it always takes better gas, not optimal but turns higher. The problem, it squirts sc And that would be the problem where I don’t know what I can do. Spark plug is new.