Fool proof saw?

[EFSM]

I run both a 590 and a 620pw. The 590 is standard issue, everyone should have one. Its the greatest budget saw of all time!

If you’re content with leaving the 590 largely stock, they’re great bargains. If you plan on making it on par with a 620, start with a 620; the 300$ difference will quickly disappear if trying to upgrade the saw.

 

[damifino]

If you’re content with leaving the 590 largely stock, they’re great bargains. If you plan on making it on par with a 620, start with a 620; the 300$ difference will quickly disappear if trying to upgrade the saw.

I agree 100%. But if you leave the 590 largely stock its the "greatest budget saw of all time". Peace!

 

[Woodtroll]

Cool to watch them timberwolf saws being put together:

Interesting at 2:29 on that video, how they're zeroing out the crankshaft alignment. Just whack it with a hammer! LOL But seriously, it's really interesting how "calibrated" a hammer strike can be with lots of experience.

Kind of ties in with this thread:

HELP! Thread '500i UPDATE !'

Feb 6, 2026

Put together cases today and it would not spin freely. Tapped on both clutch side and FW side with center punch and hammer to center and still hard to turn. Noticed crank looked wonky. Here is pic!

• Gary Courtney
• Replies: 64
• Forum: Technical Area

• 

@Gary Courtney

 

[Gary Courtney]

Interesting at 2:29 on that video, how they're zeroing out the crankshaft alignment. Just whack it with a hammer! LOL But seriously, it's really interesting how "calibrated" a hammer strike can be with lots of experience.

Kind of ties in with this thread:

HELP! Thread '500i UPDATE !'

Feb 6, 2026

Put together cases today and it would not spin freely. Tapped on both clutch side and FW side with center punch and hammer to center and still hard to turn. Noticed crank looked wonky. Here is pic!

• Gary Courtney
• Replies: 64
• Forum: Technical Area

• 

@Gary Courtney

That was absolutely fascinating ! Thanks for sharing.

 

[mainer_in_ak]

Forgot to mention, when I travel to population centers, sometimes ill take on random tree jobs.

I always leave a 590 timberwolf in the wood truck. I've made quite a bit of money with that dmn 590! It will do ANY job i might encounter. If the tweaker pirate captain crack sparrow breaks into my tool box, im only out $440.

 

[StihlEchoingHusky]

Tweaker version of being "on the fence" regarding a decision. The ecosystem is restored. :

Tweaker geographic is absolutely the greatest thing since (fill in the blank!) I am so glad I never got that bad.... It's scary to think, when I watch those videos that could have been me!!

 

[mainer_in_ak]

Interesting at 2:29 on that video, how they're zeroing out the crankshaft alignment. Just whack it with a hammer! LOL But seriously, it's really interesting how "calibrated" a hammer strike can be with lots of experience.

Its perfectly normal. Fitting together 2 stroke crank ends with hydraulic presses, lotsa hammer time and confirming everything is true with dial indicators.

The good folks at Northern Crankshaft are putting me together a fresh crank for my woodhauler. Itll have all all new bearings. Kinda similiar, but little bit more going on and the hammers are bigger.

 

[davidwyby]

I've got a buddy who has started a firewood business with a friend of his. (Ya. It's a I know a guy who knows a guy kind of situation lol) Anyways my buddy is a little hard of hearing. So picking up on a leak would be a bit challenging for him. But that being said I would love to get him a new saw. I'm thinking cs590 would be a good choice. What is y'all's opinion on the subject. This firewood business has grown enough that he is literally cutting and splitting all day long. So the saw would be seeing commercial use, in terms of run time!

Picking up a leak? Air leak? Tuning?

for fool proof I think auto tune…36”wood…572

 

[nbbt]

I've got both.

I've got a buddy who has started a firewood business with a friend of his. (Ya. It's a I know a guy who knows a guy kind of situation lol) Anyways my buddy is a little hard of hearing. So picking up on a leak would be a bit challenging for him. But that being said I would love to get him a new saw. I'm thinking cs590 would be a good choice. What is y'all's opinion on the subject. This firewood business has grown enough that he is literally cutting and splitting all day long. So the saw would be seeing commercial use, in terms of run time!

Only tweak has been a slight muffler mod opening several (about 6) of the baffel holes (about 0.085" larger dia) from the inlet side of the muffler. Did it in a couple of steps, needed some tuning adding more fuel, but it did wake up a good deal. Didn't get much louder, but it sure is a lot snappier.

Picking up a leak? Air leak? Tuning?

for fool proof I think auto tune…36”wood…572

And then the 572XPG, with it now having 15 or so tanks through it after @srcarr52 molested it from new, and this one wears a 28" with full comp for general duty.