(electric sound)
- Hey guys.
Welcome back to my small engine repair channel.
Today I wanna show you something very important
when it comes to your MS170 and MS180 Chainsaw.
And what I'm going to show you today
is very, very critical when you do a certain type
of repair on this saw
because if you don't follow my instructions today
you could wreck your chainsaw, or it could be so expensive
to repair that it may not even be worth fixing.
So I'm gonna get right into it guys
and I actually have a chainsaw here
on the bench that people brought in,
and they did exactly what I will show you today
that you should not do.
And what I'm talking about here
is where the choke lever attaches into the body of the saw.
What I tend to see a lot is people try to work
on their saws themselves that go to pop off the choke lever
to remove the carburetor and stuff like that.
And in the process,
they end up breaking the plastic part here
where the choke lever sits right in.
And you can see it very well over here,
it's broken that's why the choke lever
on this saw here is all loose
and the other end of the choke lever goes right
through this hole right here.
This part here usually never breaks
but it's always over here that people break it.
And here's another saw here.
This is an MS180C.
It's the same thing, it's made the same
and you can see right here that the choke lever
on this one is improperly,
so it's this small little part here that ends up breaking.
So what I'll do here is just quickly show you
how to remove it without breaking that part.
I'm gonna spray a bit of liquid wrench on it first.
It does help a bit
and I like to remove the choke linkage before I remove it.
So what I do is I put a flat screw driver
right underneath the choke arm and then I pry upwards.
You can see how easily it came out of that hole
with no extreme resistance.
And that's because I was pushing straight up,
where the whole exits, that's why it's really important
that you don't push backwards
because you will break the small plastic piece here.
So again, here it is, when it's properly removed,
you've got this part all intact,
when it wasn't removed properly, half the part's broken off,
so that choke lever will not sit in there again.
And now what I'm going to do is show you
how to reinstall this part and the choke linkage
without breaking this or any of the other parts.
And now to reinstall this part,
I first align it in the hole over here
and I'll be careful with the switch spring right here.
Make sure it's out of the way,
you don't want to bend that.
If you bend it too much, it'll wreck your switch.
So if you position it like this
and then position the choke arm right here,
so that this inner part between the arm and the outer part
of the arm goes right above the small plastic piece.
And you can loop it up again, if you want
and then I just push it down until you hear it click,
just like that.
Now everything's on properly.
Now to reinstall the choke linkage,
shove it into the choke arm,
line up the part on the curb here
and once it's in like that,
it's installed correctly and no parts are broken.
And once you're done, you want to test everything,
try out the choke as well.
And remember on the saws that to get the choke fully on,
you have to depress the throttle trigger
to get it all the way down.
So if you try to push the choke down,
without depressing the throttle lever, it won't go down
and this is also a reason
why people end up breaking stuff in here,
is they don't realize you have to be holding the trigger
to get it down and it's the same to get it up.
You have to hold down the trigger
so that the choke will fully come off.
Now, it's very critical when you have
to remove the choke lever that you do it correctly, guys
because if you end up breaking it like this saw here,
you will end up having to replace the whole case underneath,
minus the recoil and the handlebar
and it can be a lot of labor
because you're going to have to remove all the parts
from inside that plastic case.
And if you're paying somebody to do that,
it's probably not worth doing.
And here's an illustrated parts let's say,
it would be this whole part over here
that you would need to replace.
So it's the major component of the saw itself
and in many cases, I just mentioned it won't be worth fixing
if you're paying a mechanic to do it.
Especially, when you can buy this
for 229 in Canada right now in 2022,
I'm sure it's cheaper in the United States.
So again, these are saws
that if you get too much damage, just forget it,
just go by another one.
So I hope you guys enjoyed the video
and I hope that I will be saving you some major repairs
in the future when you work
on your O17 O18 MS170 and MS180 Chainsaw.
Thanks for watching and have a great day.
(electric sound)