Pretty in Pink, dunno why
Join Date: Feb 2009
Location: Redondo Beach
Well, I'm not quite ready yet. I'm not satisfied with the tune; it's still a bit rich.
I got the dumb idea, after my first few runs with the wideband O2 sensor in, that I needed to go up on the main jet and down on the needle. The result of that is a too-rich mixture at cruise. I would be fiddling with it, but I got (like a trout) distracted by shiny stuff. Seahorse cases...
Anyway, on that trip I took a week or so ago I got 42 mpg, down from my usual 47. Most of the time was running at 5000-5700 rpm, though.
Normally on a trip like that I would have kept it below 5000 rpm to try and abate the oil burning and still would have had to top off with a quart or so. The bike has almost a 1000 miles on the 685 and there is no perceptible oil use. That's a success.
I can't ride it the way I rode before, as the front end will come up too easily. I know that's hard to believe, but I've had the front end two feet in the air, unexpectedly, twice now and have had the front end quite light several times. Once was on an exit from a corner; quite disconcerting.
With me on the bike sitting straight up (I stick up quite a bit, being broad in the shoulders 'n narrow at the hip and all, not to mention devilishly handsome), and with bags on the back that make the ass end wider than an ax handle and a plug of tobacco, my top speed used to be limited to about 90 mph (gps). Last Thursday I hit an honest 99.5 mph. I suppose if I leaned over a bit or didn't have the bags on it would top 100. That was westbound 91, which around here is always into the wind, catching up to an R1.
The weeping around the base turned out to be a false alarm and it will hopefully stay that way. Time will tell. I know I damn sure ain't taking it apart to fix it unless it starts looking like Jed Clampett's south 40.
I'm pretty happy with it and just need to get in there and put the old main in and find a happy clip position on the needle.
Tom [email protected]
“The kid poured him another straight rye and I think he doctored it with water down behind the bar because when he came up with it he looked as guilty as if he'd kicked his grandmother.”
'How' are words so important they cannot be too often used.”
Sting like a butterfly.
Noli Timere Messorem
Last edited by Tom Schmitz; 04-06-2011 at 04:43 PM.