today I'm going to show you how easy it is to change the oil on your Harley Davidson rear shocks
using simple tools
blow gun
syringe
7/16" wrench
and your gonna need teflon tape
to start out I'm using my air compressor set at 50 psi
you don't want to go any higher than 50 psi
when your doing this okay
so here you have the Harley Davidson rear air shock
or air ride shocks
whatever you want to call them
I leave them upside down overnight like this
if you have a vise it's easier you can put it in the vise it'll hole it up side down
what that does it allows the oil to flow down to the bottom here
which is actually the top of the shock
now to get the oil out of this shock
what I'm gonna do is I'm gonna hook up my blow gun
your gonna leave the tube on the shock okay
and what we're gonna do is we're gonna blow air pressure back in through the shock
pressurize the shock which then in turn it is gonna push all the oil out
and once I release this the oil is gonna come flowing out
and that oil is coming out nicely
now these shocks got about geez I want to say their original to the bike
and their about 67,000 miles on them
don't know if this oil has ever been changed
I've never changed it and it does look quite dirty
alright I'm gonna boost it again with some air pressure
these are low pressure shocks on average your running about 20 or less in these shocks for air pressure
and your just gonna keep doing this till all the oil is out
and I'm gonna do it one more time
alright now I'm gonna remove this hose
push down on the red clip and the hose should pop right out
now to fill this
their is two things you can do
you can leave the hose in here
and if you have the ah mityvac
you can use the mityvac by hooking it with the adapter into the hose
put the oil in the mityvac cup and create a negative pressure inside the shock
and it will pull the oil into it
I don't have one of those
so I'm gonna show you a simple way to fill these up
without a mityvac
we're gonna take a 7/16 inch wrench were gonna take this nipple off
once you get the nipple off you can see there is a small hole inside there
that's were we are gonna put the oil back in
and to do that I'm gonna use my syringe
which fits nicely in that hole
you can actually even screw it in if you wanted to to get a good seal
so from now on I'm gonna keep this part the top part obviously up
as best as I can
alright I got my fluid
in a styrofoam cup it's an old dunkin donuts cup
that way I can suck it up with the syringe
this syringe is two ounces so five of these 10 ozs is gonna go into the shock
so your gonna hold the shock up right
put the syringe in
get the syringe in there
now we're gonna push the syringe about half way
that pushes the fluid right in there nice and easy
you're gonna pull the syringe back up to 2 ozs
what you're doing is your sucking the air back out
relieving the pressure and then your gonna push the rest of that in
alright we got 2 ozs in there
so you pull the syringe back up relieve some of that pressure take the syringe out and boom you got 2 ozs of fluid in there
get another two ozs same thing
so that's four
six
eight
sometimes taking it out from the top relieves a lot of the pressure
make sure you get it all in there and you can take that out
and their you go
10 ozs inside your shock your good to go
you're gonna take some teflon tape
put a little bit on the threads
put this bad boy back in
make sure you don't cross thread it
and then tighten it down
clean up your shock
now all you gotta do is put this back on your Harley Davidson
tighten the bolts down torque them
hook up your air line
put the right amount of air pressure in there
and your good to go
I think with the new fluid your gonna probably notice a better smoother ride
alright you all take care
I hope this is helpful
and ah you all have a great day
good bye
god bless
I'll see you all later