Echo cs 590 muffler mod. Removing the Spark Screen won't help much BUT it does have a Baffle Plate that can be easily removed that will help. SawSalvage. Saw has more power. Subscribed 106 9. Check out how not to mod a chainsaw muffler but build a super cool exhaust pipe instead. GENUINE ECHO CS-590 READY TO CUT WITH THE FOLLOWING UPGRADES INSTALLED: THE DUKE'S CS-620 UPGRADE CARB, FULLY ADJUSTABLE, NO ANTI-LEAN NOZZLE GEARHEAD AIR FILTER SEALING KIT GEARHEAD TIMING ADVANCE FLYWHEEL KEY GEARHEAD MUFFLER DEFLECTOR FOR IMPROVED FLOW TUNED IN OUR SHOP TO 13. Enhance power and durability for all your wood cutting needs. Strangely, my Echo CS-500P has a very wide open non-cat muffler from the factory as does my Husky 440. Run premium gas & retune. Nov 28, 2008 · Testing was performed on my SuperFlow SF-110 Flow bench. Will be doing more chainsaw work as needed. Jun 22, 2025 · Boost your Echo CS 590’s power! Discover 5 pro muffler mod tips for better woodcutting performance. Neighbor says same thing. I have been wanting to port this chainsaw but I am new to porting. Jan 2, 2016 · Just from the exhaust size I imagine these are rather torquey saws in stock form. Constructed with durability in mind, this muffler is designed to improve the performance and sound of your equipment. com FREE DELIVERY possible on eligible purchases Mar 9, 2016 · Echo cs-590 ported Watch on Click to expand Nice job she sounds awesome! That’s what I’m looking to do with this one! Available at www. Echo CS 620P chainsaw. Testing timing advance, and muffler mod on the popular 60cc echo offerings. Can you do a gasket delete without porting the saw and get any gains ? Upgrade your ECHO A300001811 CS-590, CS-620P, and other models with this high-quality muffler from RCPW. tl;dr -- I've found two ~5yr old threads on arboristsite with real specific info on portwork & modding this platform (590/620), and found - and will be basing my portwork - the tinman's youtube with a super recent breakdown of 590 porting and "590 to 620" mod-work. Have used saw almost daily since September so experienced, now eom November. Moderate: Pull the flywheel off and shave ~. 2K RPM ABOUT THE FLYWHEEL KEY TIMING A Aug 18, 2016 · Echo CS-590 Timberwolf Muffler Mod - Flow bench Measurements Team FAST Aug 18, 2016 cs-620 cs-620pw echo cs-590 echo cs-600 flow bench mastermind muffler mod porting team fast Help Support Arborist Site: The last piece of the pie!! letting an CS590 echo breath to see if it will run any better!Thanks for watching!! Easy: Open up the muffler. for porting and service info visit our website https://worksaws. These echo saws are So nice to work on and run. Dec 27, 2018 · Yesterday, I stuck an air filter sealing kit on my Echo CS-590. But I can Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Aug 19, 2018 · I did a muffler mild muffler mod with a couple of little holes bypassing the baffle. I give an overview of how to muff mod the saw an retune. Left spark arrestor in. A muffler mod is easy on the muffler with one hole needing to be drilled. Retune carb. Aug 23, 2019 · Buy Genuine Echo A300001571 Muffler Replaces A300001570 A300000770 Fits CS-590 CS-600P Chainsaws: Accessories - Amazon. Took a long time to do the muffler mod. You can turn the high screw almost all the way in and it's still too rich after you mod the saw. We run head to head with the 590 and 261. Then again, was my first time doing such work. Curious why you think that? Is it because you are capable of working on your saws yourself? Or a difficulty in finding a servicing echo dealer to do the warranty work? I agree BTW, if I bought a new echo, I wouldn't worry about the warranty and I'd do the mod right away. If the muffler mod works good the 620pw will get it as well. Advance the timing. Aug 18, 2016 · I recently acquired an Echo CS-590 Timberwolf Chainsaw. I ordered a cs 620 unlimited coil and carb for it as well. 2K views 1 year ago muffler mod on the Echo cs590 I bought off market placemore Mar 9, 2016 · Love this saw, wish I had been setup like @Ronie with OEM baselines, especially would've liked to compare "just the standard muff-mod" to my style with the full port-matching (which was just such a beast the muff's rear wall is so strong/thick, and tolerances need to be so precise if your exhaust-flange was ported aggressively like mine! I got the echo dual dogs on mine, and full wrap handle, plus the muffler mod, which is just drilling a hole inside the muffler and cutting of the deflector under the spark arrestor screen. Changed spark plug for color match. No adjustments since purchase. Difficult: Delete the base gasket, which means pulling the cylinder off of the crankcase and thus pretty substantial disassembly. I have also removed the inner plate on the exhaust guide. I have scores of later production chain saws in service w/o any muffler mods at all and they are fine. Here's the really nicely designed exhaust outlet deflector that Matt has created. For the money the 590 is a great saw. By following these five pro tips, you can unlock your chainsaw’s potential and make your woodcutting tasks easier and more productive. 020” off the keyway with a file. 05 before freeport, won't know timing numbers, or squish till I get the saw. Jan 31, 2025 · Echo puts a governed high jet in the 590 and 620 carbs, it's why they're kinda slow stock, it kicks in at about 12000rpm. coUpgrade your Echo CS-590 Timberwolf with the following parts:-THE DUKE'S PERFORMANCE UPGRADE CARBURETOR FITS ECHO CS-590 CS-620. Mar 13, 2014 · For $400 you won't do much better. Echo CS-590 muffler mod and custom exhaust pipe. Mufflers are for th Nov 17, 2022 · The Dolmar 5000/5100 muffler is non-cat and a perfect fit for the 5105. comfor the muffler Aug 18, 2016 · Echo CS-590 Timberwolf Muffler Mod - Flow bench Measurements Team FAST Aug 18, 2016 cs-620 cs-620pw echo cs-590 echo cs-600 flow bench mastermind muffler mod porting team fast Help Support Arborist Forum: Oct 30, 2021 · My echo 590 got a Tinman's saws type muffler mod this morning. Little more noise. As promised, I intend to measure the muffler on my flowbench and then measure the incremental improvements as a result of the common "muffler mod" alterations. I also broke my OEM air filter while trying to clean it, and I replaced it with one that has a plastic screen instead of the fluffy stuff. It has been designed to maximize the exhaust flow/volume yet still fit under the stock plastic and exit in the stock direction. Nov 30, 2015 · Muffler "mods" on the other hand are completely optional. Installed Gearhead Performance Deflector last week. Not placebo effect either. I've ran the 455 Husky and 290 Stihl and they just can't compare to the 590/600. I hope you enjoy the video we had fun making it! Aug 27, 2025 · Upgrade your Echo chainsaw with a modified performance exhaust for models 590, 600, and 620. What a difference!!! Response improved. Didn't tell him what Muffler Mod questionQuote from: Andyshine77 on May 25, 2014, 10:06:10 PM warranties don't mean much anyway IMHO. The 590 is the same as the CS600. Upgrade your chainsaw today! Big bore cylinder kits, pop-up pistons and dual port mufflers for Stihl, Husqvarna, Makita a Dolmar chainsaws. I also drilled 6 3/16" holes in the muffler under the spark arrestor. It's been upgraded a bit since I last posted CS-590 muffler Flow numbers in 2016. Echo cs 590 chainsaw Runs good has a muffler mod Jun 17, 2025 · The Echo CS 590 muffler mod is a simple yet effective way to improve the performance of your chainsaw. I get along very well with mine. Looks like I have about. I read Echo CS 590,600,620 port/mod and a couple of more forums that have good information about porting. xwy qkk1uky t3pdb n2 e8ce qz 7rkxmp op6 ffcy 7u