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Originally posted by Schming
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Reverse for the drill is forward for the speedometer.
Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
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XSacatacalyOriginally posted by BA80 View PostReverse for the drill is forward for the speedometer.
1980 XS1100G "Dolly G" Full Dresser (with a coat of many colors
)
1979 XS1100SF (stock-euro mods planned)
1984 XV700L Virago (to be hot-modded)
1983 XJ750MK Midnight Maxim (semi-restored DD)
1977 XS650D ( patiently awaiting resto)
Sometimes it takes a whole tank of gas before you can think straight.
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how I calibrate speedos.
Find a high speed drill that will turn speedo at exactly 60mph for one minute. Note the mileage attained or not attained. A calibrated speedo will clock off exactly one mile. You can calculate the accuracy by how many tenths are added or shorted in the odometer. This is not perfect as the odo is in tenths. You can then guess on how much the needle has to be moved backward or forward. example if the odo clicks off 9 3/4 miles the speedo is too fast at 60 and the speedo is actually a percentage too fast because you only traveled 9 3/4 miles in one minute at a speedo speed of 60. The speedo is therefore 2.5% too fast at 60mph. You would actually have been traveling at 58.5 MPH . You need to have the speedo apart to calibrate it. I have done this on 5 speedos and then checked it against the mileage markers of the freeway. Got it close most of the time, dead on once.
Vance79 1100 SF Carmine Red stock
85 Honda v65 Magna
70 Yamaha HS1 90cc twin Californian Orange
02 Road King (retirement gift)
First bike-s 2-1967 Yamaha YM2C Big Bear ScramblersComment
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My cordless spins at 23mph, one that spins at 60 might be a little scary.
I'll just match with a known good guage at 23.
Greg
Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.”
― Albert Einstein
80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.
The list changes.Comment
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