Kawasaki Ninja EX400cc Stock Compared To Supersport Built Engine 2018

2018 Kawasaki Ninja EX400 This is a Completely stock 400cc off of the show room floor compared the same motorcycle with a Spears Racing Spec Kawasaki 400cc Supersport Build and this is dyno’d on 89 Octane pump fuel

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2018 Kawasaki Ninja EX400 This is a Completely stock 400cc off of the show room floor compared the same motorcycle with a Spears Racing Spec Kawasaki 400cc Supersport Build and this is dyno’d on 89 Octane pump fuel, This was built with all Kawasaki Products, and a few other products listed below.

The cylinder head was done to the Spears Racing Spec or the competitive valve job (Referred to a SUPERSPORT Style) the valve faces and stems are machined, and the intake valves are given a special double cut. The exhaust seats are given a three angle cut. The intake seats receive a blended four angle cut or full radius cut depending on the application. Finally all valves are hand lapped and checked for correct sealing. All of the seat work is done on our state-of-the-art valve machine. Once the cylinder head has been machined and thoroughly cleaned, it is time for reassembly. Careful assembly of the cylinder head involves checking valve spring height and pressures as well as setting the valve lash for proper clearance. Our Services

We also installed the Spears Racing thinner head gasket, Re-installed the fresh cylinder head and proceeded to degree the OEM Camshafts, this is the Builders Secret.

The rest of the parts used for this Kawasaki Ninja Supersport Build job are as follows

MWR Race Filter

NGK Race Spark Plugs

Graves Race Exhaust System

51.20 RWHP (Not fully Broke in and Still needs some tuning)

Torque:29.77 Ft Lbs.

 

 

1 review for Kawasaki Ninja EX400cc Stock Compared To Supersport Built Engine 2018

  1. Johng813 –

    Great website! I am loving it!! Will be back later to read some more.

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