It's been a while hasn't it? Well, no time to dilly dally, we're back on the Kawasaki GPZ550 project: This time we are installing a freshly rebuilt head on top of the Wiseco 615cc big bore kit. Not much to say really; we drop the head into place, torque it down, and install the camshafts.
Dual-Overhead Camshafts makes the install process a little more complicated than say, a SOHC CB750 or a pushrod BMW or Harley. It involves counting the cam-chain links in between marks on the two cams before tightening them down. That's, of course, after installing the shim-under-bucket mechanisms that dictate valve clearance. If you get it wrong the first time, that means you'll be pulling off the camshafts and replacing the shims with the correct size, so be sure to take good notes.
An important thing to note with this motorcycle is that the valve cover has to be torqued down before installing the camchain tensioner, as seen in this footage. Don't say I didn't warn you!
Next time, we'll be installing some real trick carburetors: Keihin FCR race carbs so be sure to subscribe if you're interested in learning more.
Want to see more of the Custom BMW R90/6 Project? Check out the playlist here:
• BMW R90/6 Custom build
I'm on Instagram @roodlum / roodlum
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23 авг 2024
