I bought this 300cc 4wd ATV for 500$. Chassisplate says KWS14 and made 2005.
Whats is real name, TGB, Rally 300 or else. Front diff broken and
keys missing..wiring looks like hell...does anyone have wiringdiagrams
to this atv...Warn winch on front and all 4 tires with alurims are new.

 

Can't say it looks familiar, gonna take some searching but for the price I suppose it will be worth fixing if you don't mind getting your hands dirty! Finding replacement parts for these Chinese machines can be a problem, hopefully a substitute can be found.

 

This is the only 2005 300CC 4x4 atv I could find that looks like yours. Hope this helps....... China Utility 4X4 4 Wheeler Adults Racing 300cc 500cc China ATV Photos & Pictures - Made-in-china.com

 

It does look like a TGB but I don't think they made a 300, and that XTM. However the makers name is on that plate in the photo looks like Zhejiang Kingwell Sports Vehicle Co, Googling them they only make up to 200cc now, so yours may be an obsolete model. On Googling Kingwell ATV I got this though EEC ATV 300cc (Kingwell) Quad shaft drive, water cooled shop for sale in China (Mainland) - Zhejiang Sun Star Scooter Co., Ltd. so it looks like you can buy new 300s badged EEC.

 

I have found that same picture but no wiring diagrams

 

There is other metalplate were is written Zheijiang Kingwell sports vehicle co. is this copy of yamaha.

 

Download a manual for the Yamaha, perhaps you will be lucky.

 

Problem solved. Keeway GXT 300 4x4