I actually just finished putting mine on tonight w/ my 2000 51 w/ 15- 40 sprockets. I also have the 180 section tire which is a little bigger than stock (25.8" I think dunlop 208zr). I measured 65 mph indicated in 3 rd gear at 5000 rpm, which comes out to be 11% too much. Just follow the instructions step for step and use the table, and you will be good to go. It worked great.
The factory sets the odometers to be dead accurate but they set the speedos to read high. I don't know why but that's the way it is. If you use the speedohealers online calculator you can optimize it for the speedo or the odometer, or you can choose the best compromise between the two but you can't set them separately from one another.
Just got my Jim Ahlman healer and was wondering if anyone who has installed one can comment on whether it's easier to instal if you take the side panel off. Instructions only talk about it being under seat on right side but looking at my bike I think it may be easier with the right side panel off.
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