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Discussion in 'Thumpers' started by onaXR, Jan 18, 2006.
Google "Mercury Girl".....oh Yessssss
She's the Wipe Out chick too.
Depended on the department, I had a extremely attractive power train engineer (female you silly bastages) ask me how a clutch worked one day
and unfortunately the Mercury chick went the way of the name plate, scrapped....
For discussions sake i'll bite on the sag comment
Setting sag is more or less setting the ride height up for optimum damper movement and control. We performed basically the same procedures on the test vehicles but needed a alignment rack to allow for free suspension movement. First we would unload the vehicle of any added weight (test equipment load boxes ect ect to mimic a show room vehicle) make sure the gas was full and pull the vehicle on the rack. Once the pins were removed from the floating plates we would jounce the vehicle up and down release it and wait for the suspension to settle. The measurement was usually from the outer ball joint or lower bushing to the inner control arm/link joint or bushing, the difference being the ride height. The problem with only measuring spring height is that it does not account for the suspensions "working ratio" as I like to call it, almost everything short of a beam axle with the springs directly in line with the axle tube or Forks on the motorcycles front end will have a suspension ratio. For instance raising the strut perch on a Escape 8mm would yield a 10mm increase in ride height due to the ratio of the control arm, were as putting a 10mm spring shim in a 4wd F350 equals 10mm increase in ride height. Reasons why Sag measurements seem unrepeatable can be to not paying attention to the details like fuel, gear, ect ect. and also not taking in to account the amount of "sticktion" created in the system (linkage, bushings, shock ect ect) by either jouncing the suspension with the rider off or on will create variations, hell holding both of the brakes on will throw the measurement off. The biggest thing is to try and get repeatable measurements before deciding to adjust one way or another. This seems like the best method I have found and might improve your repeatability http://www.triumphnet.com/st/acc/racetech/setup.htm .
Just measuring the Spring may seem more repeatable but it is also much less acurate as your not taking into account the suspension ratio (usually more movement at the wheel end vs the shock)
Yes I was on a stock seat. Well mostly. I cut an inch out and added an inch of that foam you can get as a kneeling pad for gardening. I also made it a little wider. Granted I ended up sitting further forward than the part I made wider so go figure. However I would totally get a different seat if I got that bike, but I'd never get that bike.
Or buns of steel.
The forging company I worked for made the FN-10 steering spindle forging. We made, exact number, 1 million of them.
I am appaled to hear an ex Ford engineer, WITH Q-1 AND QS9000 training, tout a measurement system that has low repeatability.
You must have been cutten SPC classes to hang with Jill.
I agree with the sag measurement method you and the hot babes at Ford used on a car or truck. But on a bike the spring length is best. Regardless of how you do it there is just too much variance between sag measurements to make it a reliable control. In measuring the length of the spring it's easy to get extreamely close measurements to desired. You must of course have some starting range, like Honda gives. And that may be an application for engineers and hot babs at Honda to work out on a test stand.
If more pre load is needed for the extra gear taken on a trip shorten the spring and record the length that worked best. After the trip set back to the original length measurement and your done. This measurement can easely be made to 1/64" accuracy. If for no other reason the spring length method is better because it is faster to accomplish. I wager that sag can not be measured to within 1/2" accuracy.
And that remindes me, does anybody make a external pre-load adjustment device for a Showa shock?
He said Buns.
My mind just will not let me understand all of the suspension jargon no matter how much I read or study it. I just know I put in the recommended heavy springs, the compression dampeners are set to full soft, the rebound on the shock is set to full fast because that's the only way the rear tire will stay hooked to the ground through stutter bumps AND IT SUCKS ASS!!!!! I HATE IT!!!!!!
Clam down. Come back from the cliff edge. It's OK. Just try different settings. The heavy springs can be set on the soft side. Keep notes of changes and how they performed and you will get there. Do you think Red Bull wins all the F1 races with just dumb luck? It takes trial, error, evaluation, and re-trial.
Do you want Jill to help ya?
Now there's an idea. Or I am sure losing about 60lbs wouldn't hurt either.
Can Jill help me too?????
Yeah, there ya go.
Try lite beer?
Just a second, I'll check, I gota find the new speed dial number I made for her.
Hey there, watch it!!! :eek1 I resemble that remark...
Lite beer??? Is that for drinkin two fisted???
SWEET!!! I call Conducter!!! oser
Lite beer - that's the 7% dubbel you have for lunch so you can save the 10 and 11% tripels for the evening. Duvel tripel hop 2012 is heaven in a glass.
I should set either my race sag or spring length one of these days. I guess I don't ride the bike hard enough to know the difference. I adjusted the rebound rear and front until it didn't piss me off, and then went out and enjoyed being on the damn thing.
Question: Why no support for your fellow countrymen at KTM? They are in one of those Grematic countries arn't they?
Seriously, you just are not going to know if your as recieved suspension set is good untill you try a different set up.
You all might have guessed that things are pretty slow here in the Oil Patch with oil at a stinking $85 a barrel. Good for you at the pump, bad for the Houston economy, good for my post count! Good night
Pshh!! who cares about the seat! hell id even consider taking it off. im not gonna be sitting down while haulin ass though the FL sand whoops and trails actually I cant relate to ever being uncomfortable while riding a dirt bike on the street for long periods of time. (long periods of time meaning 100 miles in a day or more) must have something to do with my sweet young 21 year old ass cheeks