Kyle, why bother? Honda had been forced to add this blow-by gas filter system on an already existing and succesfull model, the CB500, which had the same frame, so there was not much space to add the thing. Possibly as a consequence the design was poor. General dealer advice in my environment back then was: abandon that blow-by filtersystem altogether and live happily ever after. Those who wanted it nonetheless, had to service it very,
very regularly and were advised to have the oil level not higher than halfway the
MAX and
MIN mark on the dipstick. I remember an in my view stubborn defender of the blow-by gas filter system. Strangely enough he had turned to a
foam airfilter element - which btw is inferior from the start. He has stated he had done this because the OEM paper filter element always became moist and he presented the theory that
all paper elements did this after a year, which I have proved to be wrong. Mine on a CB500 is over 10 years in its case and filters as ever before.
Because he continued this nonsense about paper airfilter elements getting wet, I started to doubt his motive to go for a foam filter. He argued that is was cheaper as he did not have to replace the paper element every year. The reason I doubted his motive was, that is was very unusual for him to use aftermarket products. He always preferred OEM. He even went so far to buy the OEM sparkplugcaps which are bloody,
bloody expensive compared to equally good NGK caps. He was of the opinion that a presumed extra resistance in the ignition secundary circuit was good for spark duration, which is also not proven and now I express myself politely...
At one occasion in 2008 (!) after a long debate, I have reacted in this way:
He had said:
I have direct experience with filters [meaning OEM paper filters (DR)] becoming more restrictive and unservicable after a year of use.
My reaction was: I know you have. Yours have been peeed on by your crankcase breather tube. I can smell it from here. But you'd rather bite your tongue...
