Yamaha Raptor 700R Engine Build Part 7: Head Installation and Valve Lash | Partzilla.com

See the components for part 7 of our Yamaha Raptor engine build here:
http://bit.ly/Yamaha-Raptor-Engine-Bu...

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In part 7 of our 2017 Yamaha Raptor engine build, we’re ready to install the cylinder head. We’ll start by getting the head gasket on, and then we’ll show you the torque settings and the tightening sequence to get the head installed to Yamaha’s specifications.

There are a couple of other parts we’ll install, including the thermostat and an oil delivery pipe. We’ll also set the valve lash on our Yamaha Raptor 700, showing you the valve lash settings on the intake and exhaust sides.

Go back a step and see us install the valves in part 6:    • Yamaha Raptor 700R Engine Build Part 6: Va...  

See the Yamaha Raptor engine build from start to finish here:    • 2017 Yamaha Raptor Engine Build  

Check out these diagrams to see where we’re working:

Cylinder head diagram: https://www.partzilla.com/catalog/yam...

Valve diagram:
https://www.partzilla.com/catalog/yam...

Camshaft and chain diagram:
https://www.partzilla.com/catalog/yam...

Oil pump diagram: https://www.partzilla.com/catalog/yam...

What causes gasket failure? Read about it here: https://www.partzilla.com/blog/gasket...

VIDEO HIGHLIGHTS:

Installing cylinder head gasket - 2:00
Installing the cylinder head - 2:48
Installing the cam chain sprocket - 4:20
Installing the thermostat - 6:55
Setting valve lash - 8:42
Installing engine covers - 11:09
Installing spark plug - 11:50

Find thousands of Yamaha ATV parts here: https://www.partzilla.com/catalog/yam...

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In the video we’re working with a 2017 Yamaha Raptor 700R, but you may have similar steps for your Yamaha ATV. If you’re not sure whether these steps apply to your machine, leave a comment and we’ll get back to you.

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