hi Chris from Dynojet here in this video I'm going to talk about how you might
troubleshoot problems with your rod pressure style quick shift sensor so
here I am at the shift linkage on this 2012 Yamaha r1 I have the shift sensor
as part of the tie rod first thing I want to make sure is that the shift
sensor the tie rod the entire shift linkage isn't going to get rubbed or
isn't gonna kink or bind anywhere with full travel all the way up to all the
way down we also want to make sure that the pivot arms on both ends of the tie
rod are as parallel as possible you don't want those too far toed in or too
far toed out it could take excessive pressure to trigger the kill now a shift
sensor switch is nothing more than a switch so all we're looking for is a
circuit opening and closing whenever we pressurize the shifter with an upshift
motion so I've disconnected the harness from the shift sensor here I have two
wires to test a blue and a green wire if you happen to find a red wire and your
shift sensor harness just ignore it it's it's not a wire that we use here I got
my multimeter out I'm gonna set it to ohms that's the horseshoe-shaped symbol
and I'll leave ahead and go ahead and set it to beep whenever the circuit
closes so right now I have an open circuit on my test probes when I close
the circuit my own meter starts to show a resistance value and it starts to
indicate a closed circuit by the ring I'll just probe the shift sensor wires
polarity is not important
and I'll put some pressure on the shift sensor as if I were in an upshift motion
and I should see the circuit closed here and I do
so with this switch I go from a open circuit to a closed circuit when I
pressurize the shift sensor if the circuit closed or opened whenever I push
down or I'm down shifting then I know I have an inappropriate shift sensor with
this bike I need a pull type shift sensor when I'm
up shifting so this is a pull type shift sensor if I didn't close the circuit
until I push down then it would be a push type shift sensor which would be
inappropriate for this type of shift linkage also because this is a normally
open style switch I might find some switches that are closed the circuit is
closed while the shifter is at rest and whenever I up shift the continuity
breaks the circuit opens that's called a normally closed style shift sensor so
this is definitely a normally open style shift sensor and yeah I need to make
sure my power commander software that my switch style setting is set for normally
open likewise if this happened to be a normally closed shift sensor I would
need to make sure that my switch style is a normally closed style switch style
now the reason we have normally closed and normally open style shift sensors is
with the quick shift expansion module if you happen to have a quick shift
expansion module that looks like this one and it has a blue LED on the
faceplate this type of quick shift expansion module will only work with a
normally closed style shift sensor since this is a normally open this shift
sensor will not work with this quick shift expansion module the type of quick
shift expansion module like this with this type of module and has a green LED
on the side this one will only work with a normally open style shift sensor
switch the power commander can be toggled to use either one so that's the
basics of troubleshooting a quick shift sensor as you can see it's a simple
switch nothing special if all of this stuff checks out just fine and you're
still having problems quick shifting then your problem likely is somewhere
else