Kit 105cc Ø54mm WORKS RACING for motorcycle Yamaha YZ 85 from 2002 to 2018 liquid cooling

High quality WORKS RACING kit to increase the displacement of your YZ 85 2T from 2002 to 2018 to 100cc.

This kit consists of a cylinder with high-end aluminum coating and treatment, a two-segment piston, seals and accessories. It is delivered without cylinder head. With its diameter of 52.5mm, it still offers real 103.5cc!

Its architecture and its finish are obviously very very good, its exhaust outlet is clearly improved and enlarged, of standard oval shape.

The piston is a top-of-the-range model in mono-segments, it favors the high speeds, very solicited on this kind of machine. Of course delivered 100% complete as presented, high quality aluminum cylinder, VERTEX single-segment piston, reinforced engine gaskets pack ...

As an option we offer a stage 1 preparation, this preparation is a modification of the channels and the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the piston and the bottom of the skirt is also included in this modification. Allow a little extra time for this preparation! To pose with carburetion in 19 to 21mm, exhaust and sport variator, valves, reinforced crankshaft recommended!

Mounts on Yamaha YZ 85 - 2002/2018