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Everything posted by docc
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2024 Quail M/C Gathering May4th, Carmel, CA
docc replied to droydx's topic in Meetings, Clubs & Events
Congratulations, @droydx ! -
Student (docc): "Er, doubl-ish?" Engineering professor: "Young man, have you considered a transfer to the Business College?"
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So . . . no one has volunteered to perform the assigned geometry problem, yet . . . But, we can agree that increased shock length approximately is doubled in ride height?
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This sort of thing is precisely why I exited the College of Engineering at university . . . When a deflection of 6mm is applied in the x-axis to the upper mounting point, calculate the mm change in position of the rear mounting point in the y-axis:
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Hmm, so if shock travel = approximately double the suspension travel (2" of shock travel = about 4" of suspension travel) [sorry for the inch measures, y'all), then an increase in shock length would be doubled at the ride height? Such that my +6mm Öhlins would have increased ride height about a half inch? (yeah, mixing inch and metric, I know ) There is a dimensioned drawing of the swingarm in the early Workshop Manual. Someone could do this geometry . . .
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A great beginning, without having to already own a bike, is to take a local Motorcycle Safety Foundation (MSF) Beginner's Rider Course. A weekend course, typically, with some classroom, but a lot of "range time" performing specific skill exercises on a 250cc bike (usually various models to choose from). The course culminates with a riding evaluation and many states accept the completion certificate for a motorcycle license (varies by state). They offer a range intensive Experienced Rider's Course that is perfect to come back on the new rider's bike of choice.
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I see the Öhlins shock fitted to my short frame Sport is 286mm (relative to the factory Sachs 280.5). The change is ride height was notable, yet also affected (likely more so) by the stiffer spring and more aggressive sag settings.
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The low fuel sensor grounds 12 volts via an internal thermistor. The voltage comes from Fuse 5 through the Headlight Relay (#2, from the front) flowing through the 1.2 watt instrument panel bulb. The bulb has constant power to it and only lights when the sensor (thermistor) heats up and provides a ground (earth) path. I hope this explanation is helpful, @Cabernet !
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Gratuitous Pics of Girls + Guzzi
docc replied to sign216's topic in Special place for banter and conversation
Courtesy of @Randy and @KINDOY2: -
Gratuitous Pics of Girls + Guzzi
docc replied to sign216's topic in Special place for banter and conversation
I know. It's not a Guzzi. Not even a motorcycle. Not even sure "girl" is the right word . . . -
I found this odd view of my current configuration. The outboard-placed hex nuts are NyLok®-like . The angle of this view exaggerates the perception of the angles. The arms are as parallel as I could achieve while the angle of the connector rod from the Shift Extender measures ~82º. No way I can measure the angle to the gearbox arm with the starter in place, but it is slightly obtuse, so perhaps ~98º?
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Here is a "before image", if you will. While perfect 90º angles are, indeed, not likely achieved with the Shift Extender, setting the connector rod length such that the arm on the gearbox is parallel to the reach of the Shift Extender is the goal . . .
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Oh, man. First ride out since that last "bridge pic". Winter here. Merry Christmas, y'all!
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First post in this thread......
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Here is a reference image indicating the fastener that would struggle to align when the sump spacer is set off further from the engine case. Some installers reported being able to get the fastener to thread in. Others have reported relieving (filing oval) the hole in the sidestand mounting plate. I would be concerned about creating excessive lateral stress on the sump spacer forcing the fastener in without creating some relief. 3/16" is almost double the thickness of the original P.Roper motomoda plates, if my measurements are close ( 0.1875"/~4.75mm vs ~0.098"/2.5mm).
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MV Sportveloce designed after the V11 LeMans?
docc replied to LowRyter's topic in Special place for banter and conversation
I would hold that this is what sets the Marabese V11 Sport design apart. It was "unasked for" and not a "commercial" design. The original V11 Sport was not a compilation of Committee Derivation. There is a certain, and rare, purity in that . . . -
MV Sportveloce designed after the V11 LeMans?
docc replied to LowRyter's topic in Special place for banter and conversation
split posts . . . new topic . . . -
Thanks, @Coppa53 for sharing images of your Coppa Italia LeMans ! The Öhlins forks look particularly delicious beneath that gorgeous first year Lemans fairing . .
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teslas killing Motorcyclists
docc replied to KINDOY2's topic in Special place for banter and conversation
And, yet, ICE emissions have included the impact of discarding used lubricants leading many manufacturers to extend motor oil change intervals excessively and declare transmission and differential oils "lifetime fill" in order to effectively limit their fleet emissions ratings. Let us not, then, neglect to consider the "emissions" impact of the unplanned-for discard of all of these batteries as they age out . . . -
I tin it is interesting to see more and more SpineFrames on BaT. They are rather particular about what they list and an indicator of the "collector market" status of a machine . . .