Steve's Small Engine Saloon is powered by a Miller genuine draft today thanks to Lee Lorentz
Echo Canada giving me this brand spanking new hat today thanks very much buddy appreciate it you're
going to find 99 point something percent of chainsaws out there have three adjustment
screws you have a low-speed adjustment screw a high-speed adjustment screw and an idle screw
first of all you have to have your bar and chain on I shouldn't say you have to you're supposed to
have your bar and chain on tightened to the proper tension also your air filter is supposed to be on
those two things will change how your carburetor reacts when you're doing what I'm about to show
you so make sure your bar and chain are on make sure your air filters on fire it up rev it up let it
idle rev it up about a minute something like that just warm it up nice a couple safety issues here
ventilation take it outside when you do it don't start this thing and do this in an enclosed area
I have all my bay doors open my windows open I got a great ventilation system in here don't
worry about me ear muffs wear ear muffs when you're doing this it's not going to hinder you
from hearing the differences in adjusting this like I'm about to show you put some earmuffs on
all new chainsaws that are sold in the store off the shelf have some way of preventing you from
turning those adjustment screws screwing them in too far or screwing them too far out screwing up
your chainsaw most of them have limiter caps there's these little plastic limiter caps that
are on those screws themselves that prevent you from turning them in too far or too far out you can still
with the limiter caps you can still do it a little bit they give you a little leeway in
there you can still fine tune generally about half a turn in a half a turn out something like
that with those limiter caps even on there if you're real lucky you don't have limiter caps
on there you have to have a specialty screw driver Husqvarna comes to mind if you find that you
have to have a specialty screwdriver to adjust your carburetor you have to go to your dealer
ask them if they will sell you one they're not supposed to I don't think technically but tell
them Steve sent you they will set you up your low speed screw on your carburetor adjusts the fuel air mixture
at idle now there's two reasons that you want to do this two major reasons anyway the big ones
say for instance you just cut a piece of wood you put your chainsaw on the ground sitting there
idling while you're playing around with something and your chainsaw just dies and dies and dies and
your RPMs come down down and it stalls that's because your low speed screw is not set properly
it's running out of fuel another big one is that you want great trigger response I call it trigger
response acceleration when your low speed screw is set properly you nail that trigger you
pull that trigger your RPMs should come up almost instantaneously to higher RPM there should be no
bogging no lag there at all that's what your low speed screw is for here's how we do it first of
all I want you to take your idle screw not your low speed not your high speed your idle screw
turn that idle screw in until your chain just starts to move now switch to your low speed screw if
your chainsaw is not marked clearly your lowest speed screw is always the one that's closest to
your engine furthest away from your air filter now start screwing that in and out you're going
to find that when you start turning that screw in the RPMs start to drop if you get in too far the
RPMs start to drop now start turning it back out the RPMs come back up to high idle keep turning
it out and you're going to find that the RPMs start to drop again there's two points on that
screw counterclockwise clockwise where there's two points where that RPM drops off find that middle
point that little sweet spot where it's idling the fastest now start turning that low-speed
screw out very slowly until you just hear those RPMs start to come back down now leave it there
that's where you're going to want that by far the majority of the time you do that on any chainsaw
it's going to sit there and idle all day long and you're going to have excellent wicked trigger
response on that now chain could be still moving go back to your idle screw turn on your idle screw
back down until that chain just stops moving now I'm going to switch to a close-up so you
can hear me do that so you can actually hear what that sounds like when I do it close-up right now
if your chainsaw didn't react like that you have to take your limiter cap off of your low speed screw
you're not getting enough adjustment in there you have to take your limiter cap off so you
can actually turn that screw in and out further if you can't figure it out your gonna have to go
online Google how to get the limiter caps off of your particular make and model of chainsaw
once you get that limiter cap off do the whole procedure again with that low speed screw if it
still doesn't react like I just showed you there's something else wrong with your chainsaw moving on
to the high speed screw the high speed screw is simply to change your high speed RPM when you got
that trigger punched your it's running as fast as you can that high speed screw simply turns
the RPM up or down that's all it does the more you screw it in the faster it goes the more you
unscrew it the slower it goes the problem with that is tighter you turn that high speed screw
in it keeps going faster and faster and faster until you can blow your engine apart the only
way you're going to get peace of mind how fast your engine is actually running is if you have a
little digital tachometer like that simple to use you don't even have to hook it up you just hold
it near the spark plug and it'll read on that little digital display how fast your chainsaw is
running these things you can buy them online for under 20 bucks it's worth having one if you don't
want one you don't have the time to get one online the only other way two other ways that you can do
this the first one if your limiter cap is still on that high speed screw trust the limiter cap trust
that it's doing its job it's preventing you from turning it in too far fire it up rev it up turn that
screw in until the limiter cap stops you from turning it in so it's running as fast as possible with that
limiter cap and leave it there trust that limiter cap if you've already taken your limiter cap
off then playing with that screw the only other thing that you can do is Google it again go online
ask Google what is my initial settings for the high speed adjustment screw on a and then type in
your make and model of chainsaw it's going to tell you something like this one for instance is one
and a half turns that means without the limiter cap on there you take that screw driver you put it
in your high-speed screw which is the one that's closest to your air filter furthest away from your
engine you turn that screw in until the screw just bottoms out until its lightly seated turn it
out whatever Google is telling you for your model and make of chain saw and then leave it there
and just trust that that is not going to be over revving your engine also I'm going to switch to a
close-up now of this one I already got it turned out to turn and a half maximum RPM allowed on
this chainsaw is 12,500 we're going to check it right now and see how close that initial setting
is so we can see if you can actually trust that setting or not switch a little close up right now
so you can see what that digital tap came up with there it was about a thousand RPM lower
than it can be I'm going to tell you right now a thousand RPM lower is way better than
having a thousand RPM too fast on your chainsaw that would just cut just fine right there trust
that I think the initial settings are going to be just fine if you run into that
problem where you have no other choice just to put it at the initial settings so that's
it I hope I was thorough I tried to be as clear and thorough as I could a little subscribe
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that like button give me the thumbs up if you liked it until next time guys Steve out