07-06-2016, 02:45 PM
(07-06-2016, 05:32 AM)AzBob_imp Wrote:(07-06-2016, 04:48 AM)redbirds_imp Wrote: Valve maintenance interval seems short but I have never owned a bike with shim under bucket design that needed adjustment. Hydraulic lifters would be much preferred and are present on most all OHC autos so I don't understand why Honda does not use this technology on motorcycles, would be a great selling point, even Harley uses them. My Guzzi and BMW had push rods and valve adjustments were easy to perform at home with a set of feeler gauges and a wrench or two but it seems I was always resetting them.
My other gripe is rust. This bike has started rusting on the triple clamps, turn signal bases and the fork tubes. Inexcusable for a bike that stays garaged and has only rarely seen rain. Never had a rust problem to this extent with any other bike I've owned.
Most autos do not rev past 7k RPM, and the ones that do have very expensive valve trains to combat valve float.
What I don't get is that the Nighthawk and the CB11's I4s have nearly identical redlines. The hydraulic tappets on my Nighthawk work pretty well up to redline. Both engines are tuned more for low-midrange power, rather than high rpm power delivery.
Knowing Honda, they probably had an engineering reason for going with the shim under bucket style. I'd love to know what it was.