Such good news (for the time being, at least)
I just wrestled, pried, jiggled and wiggled the airbox and filter some more---and got the filter out at last! Came out on the starboard side of the bike as per Clymers (and Ted's) advice (realize that you meant handlebar throttle side, Ted, sorry for my confusion).
Now I've got the bottom half of the airbox unbolted and out for a thorough cleaning and eventual reassembly---and I can now see clrearly where the other end of the fuel return line is attached for the first time in my K-bike life. Whew! What a relief!
Now for the really good news: My crankcase breather (Z-shaped) hose is cracked!
That is good news for me because it means that that may be the root cause of my chirping noise that has been plagueing me for some time.
If Don, Paul, Lee or Ted or anyone else that might be reading this knows if my cracked hose assumption is correct please let me know. At the very least, my efforts to get to the fuel return line have paid off as I know that Z-hose can or will cause all sorts of other problems down the line and now I have the perfect opportunity to replace it ASAP.
Knowing where and what the problem is feels like 90% of my battle is won!
The only possible hitch in the immediate future (this long weekend wait for the BMW dealer to reopen Tuesday) is the fuel line that I got there yesterday is a bit smaller than my old fuel line. Since I specified that it was for a '94 K75 the parts guy probably got the right part # but I am wondering if the hose size changed at all over the years?
At any rate, a minor detail that I can correct by getting something equivalent at Napa or Auto Zone if need be. I'll try to fit one end of this BMW hose over one of my tank's fittings beforehand and if it fits all the way on I'm still good to go.
Further updates to follow as warranted and boy, am I relieved to be seeing a tiny ray of light at the end of the tunnel!:brad
Correct fuel line hose(s)
As suspected, the fuel hose I got yesterday is the wrong size. Just a mm or so too small to fit onto my tank's nipples. The part # is 13 11 1 338-115 and comes up as "bulk material, fuel, size 6x11" I suspect I need 7x13 if that exists.
In looking at the parts fiche at Max BMW I'm getting all the more confused as there may be different types of external fuel lines to begin with. The hose to the fuel injection rail is one, the return hose is another, the hose to the FPR is another and so on.
So maybe it isn't such a good idea to use generic hose cut to length from Napa or equivalent sources. ???
Suppose I'll await any advice before I proceed since I won't be putting it all back together for a few days anyway (will await an OEM Z-hose after reading Lee's comments in one of Ted's links above).
One more question; this time about the vacuum hose
I got all the old fuel lines removed today and it's a good thing I did.
The fuel line return hose that went to the FPR was clearly marked NOT FOR USE IN FUEL INJECTION SYSTEMS. Great. A previous owner was some kind of genius...
Anyway, it held up long enough and didn't have any obvious damage that I could determine but it's one more bit of relief to have it outta there now.
Before I remove the FPR vacuum hose I may try sucking on the outer end to see if there are any leaks (as per something I read in my Haynes Manual this morning). If there are then I will need a new FPR, @$155 or so with the shipping; but a necessary component that will not be overlooked.
Now onto my question;
While I can clearly see that removing the vacuum hose from near the fuel rail is simply done by pulling it off, I'm a bit worried about the other end underneath the FPR.
The spring cover doesn't seem to want to come off, either.
Do I pry or otherwise pull off the FPR end of both the spring cover as well as the hose?[/B]
If so, I hope I can do so without damaging the spring. Any tips or tricks would be welcome once again.