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2016 HRC CRF450RW engine is back in one piece and ready for frame install. Just to recap... I completely disassembled the engine and replaced bearings and gaskets. Along with a new piston, rings, wrist pin. Inspected everything and cleaned her up! Then installed a new HRC hydraulic clutch slave cylinder and mounting bracket. EDIT: I forgot to include using a new OEM cylinder and OEM right center case. Unfortunately as I have said before, I won't be able to share any internal pictures of the engine. What I can do is tell you what parts are "works" and give...

So what type of throttle body were they using? I believe it was the KTM 44mm (Honda stock size is 46mm) under-mount fuel injector throttle body. KTM 250/350/450 use a 44mm. The use of this KTM throttle body was a common modification at the time (2015-2020) on other brands 250F's. In fact Twisted Development Racing used to offer this as bolt on package for 250F's Twisted Development Why do I think that's what HRC used on their 450's? Because of this... ... a HRC throttle body manifold designed for the CRF450RW head and the 44mm Keihin throttle...

We're I am at the moment... My garage is a bomb site..... More parts continue to turn up !( much to my wife's displeasure) Not to much more to report problem wise I'm awaiting the wheels back from have some Fresh boots put on... then I will be diving into suspension service rebuild......

So since I stuck at them moment do to the dumb corona regulations in Germany. I got some time use the kitchen scale and verify some things. So the hotcam saved 69gs as it doesn’t use the auto decomposition unit. The cool thing I found out a while ago is that the WR250F starter motor will fit the XR250 MD30. There is just a small alloy bracket that has to be made to maintain the ground wire connection. Here the savings are 654g. Which gives us a total of roughly 6,568kg that have been saved so...

I spent a few nights after work cleaning and shining the motor up before installing the new covers and v-force. slowly starting to get everything together. new boyesen covers with some ti bolts