Open the gas door 2006 Qlink Sapero 250

I am not familiar with the model but overheating of any engine usually have causes in common.

If the engine is running as intended the cooling system should be able to dissipate all the heat it produces with a suitable safety margin.

Overheating occurs when the engine produces more heat than can be dissipated by the cooling system - usually because the cooling system has become inefficient either because of reduced coolant circulation or reduced airflow through the radiator or as if often the case, a combination of both.

Waterpumps with a plastic impeller sometimes lose a vane and radiators become partially blocked...

10 x 30 x 1000 for Q-Link motorcycles (Legacy, Sapero)

check out www.fixya.com/motorcycles/qlink/legacy_250 or buy a service manual

carb is under gas tank. try to remove screws and tap handle with a hammer, sometimes this will unstick it

If you google the make/model/size,you should be able to find forums where people who have already bought/own this particular one,give their opinions/reviews/ and ratings and problems they have had with it.You definitely have the right idea to research it before you buy.I do it also for just about anything I buy and the forums are everywhere for just about anything.Good luck! Greg

Motorbikes built since the 1990's more often have catalytic converters than those prior to this time. In countries throughout the world there have been studies regarding the impact of 2-stroke and 4-stroke motorbike exhaust contaminants into the air. The conclusion has pretty much been a change in policy requiring the inclusion of catalytic converters be an added feature on these motorbikes. From all I read it appears most manufacturers have included catalytic converters on 2-stroke and 4 stroked motorbikes for quite sometime. The majority of these motorbikes sold today, will have a catalytic converter. In the event you find one without a converter, if would probably not be a good idea to purchase it. An older 2-stroke or 4-stroke motorbike, probably could have a catalytic converter added, although it might be expensive to do this.,,,