Tools needed to adjust a few saws...

[Colonel 428]

So I'm the guy who's been afraid to tune my own saws but am at the point where I'm sick and tired of paying someone else to do something I should be able to do. My question is what specific tool (small screwdriver, spline, DD etc) do I need to adjust the saws listed below. Thanks for all of your help. Steve.
- Husqvarna 372xt
- Husqvarna 390xp
- Makita 7900
- Makita 6100

 

[av8or3]

I believe you can adjust them all with a pocket screwdriver. The Makita’s might require the Spline tool though. I worked on a late model 5100 that used that one.

 

[dahmer]

What I did was just buy a pack of tools from Amazon. It had I think 10 different tools in it that cover pretty much all the different heads, double d, single d, Pac-Man, etc.

 

[Woodslasher]

So I'm the guy who's been afraid to tune my own saws but am at the point where I'm sick and tired of paying someone else to do something I should be able to do. My question is what specific tool (small screwdriver, spline, DD etc) do I need to adjust the saws listed below. Thanks for all of your help. Steve.
- Husqvarna 372xt
- Husqvarna 390xp
- Makita 7900
- Makita 6100

Both the Huskies are plain flat-head screws, Idk about the Makitas. Just a tip, I bought a 10-pack of the Stihl tuning screwdrivers and I highly recommend getting at least two or three. I like to keep one in my chaps, one in my rig, one on my desk, one in the shed with the saw, one in my saw box, and the rest sit on my bench unless I need them.

 

[Colonel 428]

Thank you sir. I'll look for those screwdrivers.

 

[Al Smith]

They've attempted to make the jets tamper proof but so far have not succeeded to .It depends on the carb .Some you can pry the limiter caps off and use a small piece of plastic line to turn the screw .Some have a cone shaped head ,slotted with a slot which a small screwdriver will fit .Of course as been mentioned you can buy the little kits with all kids of gizmos that should work .Specifically I can't answer as to makes or models because I've never seen every carb in the world only to say I've never had one stump me ---yet .

 

[Al Smith]

I will mention one which was on a Makita model Dolmar designed concrete saw DPC 7321 .That one had plastic plugs in the cover shrouding .Those had to be removed to even get to the screws .Danged thing had been factory tuned so lean it didn't have any power .A little pep of fuel makes all the difference in the world with the power output .It takes fuel to make power . I will point out on a concrete saw the engine is rev limited by the ignition coil to somewhere around 8500 RPM with the wheel speed at around 5000 .So in essence it's tuned for about mid range .It's looking for torque not high speed as would be a chainsaw . On that machine it's around 5.7-5.9 HP .Not bad for 73 cc's

 

[karrl]

I believe the makita 6100 came with a few different ones for the hi jet. Mine is a 2017 and it’s a double d.

 

[qurotro]

Both the Huskies are plain flat-head screws

No. The 372 XT has spine I believe. And a outer ring to lock it.
Buy the tool set. If you want to do it by the books, get a tech too.

 

[davidwyby]

Tuning can be a pain but practice makes perfect and the satisfaction is worth it when the saw runs just right (and the chain cuts just right) We’ll help.