I recently (like yesterday) bought a secondhand hisun 400cc 4x4 SxS. It’s a one owner 2012 model only done 125 kms. It runs rough and won’t idle for long without cutting out., even when it’s warm. Here’s what I’ve done to try to sort it without success: cleaned air filters, cleaned spark plug, emptied old fuel and replaced, replaced fuel filters. I notice that there is a hose coming from the carburettor (on drivers side). It goes to a T piece but neither branch connects to anything and I can’t seem to find any places where they would naturally attach. Any suggestions appreciated. Davo