Yfz 450 Motor Yamaha Xt660 .

I present my project. Yamaha YFZ450 Special Edition 2008 Year . Quad has been professionally converted for motorcycle engine from Yamaha XT660Z of 2011. 6,000 miles. Quad has power 50km and 68 Nm. It is faster than YFZ 450 , ltr 450 KFX 450 or 700 raptor.
Quad has two fuel tanks made of aluminum (capacity 10 liters). The exhaust system is a raptor 700 + final muffler from YFZ 450 (modified very loud) Intake system welded stainless steel + Ait filter. Cooler original YFZ450 + Universal with much more powerful fan. Spacers front + rear, the front bumper GYTR.
Quad is off road