Hey guys great sight I have been trolling for awhile and finally just wanna ask if anyone has any tips on how to get a little more power out of my jonsered 2172. Its a firewood saw and I cut a lot of red and white oak 30+ inch diameter along with cherry and elm. Its a great saw and I run a 24inch bar but I would like a little more umph in big wood
Welcome to the Forestry Forum!! 2172 is about the same as a 372 husky, no? Easiest way to get a little more power is a muffler mod. The other thing you can do is run .050" gauge low profile chain. Narrower kerf and gives a bit of an advantage. At least that is what some timber fallers out here in the PNW run on their bread and butter saws, up to a 395/660 sized powerhead. Anything really long barred or big cubes you need to run beefier chain. The. Again maybe consult with loggers in your area, PNW softwood cuts easier than N red oak.
A muffler mod is a great idea. If you really want more have the saw ported. 3/8 chisel chain is going to be the most efficient on a 70cc saw. Even a good 50cc saw will be better off with regular 3/8 chain from what I've found in my testing and experience.
Remember, it doesn't matter how much power you have if it's not put to use correctly, so keep your chains properly sharpened.
Welcome to the Forestry Forum. :)
Another way to gain more power is to use that 3/8" chain with a 20" bar.
Where'd you get it and was it properly set up? These saws need to be adjusted when they come out of the box, both hi a lo. Should have no problem pulling a 24". Muffler mod is inexpensive and yields some gains. Porting gets a little more, but most guys report that this new version doesn't respond as well as the 2171. The improvement might not be worth $250 plus 2 way shipping.
Thanks for the replies! The saw runs and cuts great it just has its hands full when I'm cutting big oak. I might have the chain sharpend with the rakers a bit aggressive its pretty grabby after I sharpen it but I'm no profesional at sharpening. I bought the saw from a smaller shop that a friend of mine works at. The owner pulled it off the shelf gassed and oiled it and started it and said they were pre tuned from the factory which I thought was weird but I didn't argue.
Mad Murdock yes the saw is the red version of the husky 372 which is originally what I was going to purchase but jonsered was having their bag it and drag it deal where they give 150 off a new saw when you trade a old one in. Poor eager beaver got traded in :D. The saw has about 15 tanks of gas through it also so I would think its broken in.
1. Remove muffler
2. Remove screen from muffler
3. bend deflector as to allow more flow
4. Enlarge opening using a rotary tool and small carbide bit
5. Reinstall screen and muffler
6. Retune carb
7. Enjoy some extra power
optional:
8. add 5/8" hole in upper front(chain side) of muffler
9. Install 288xp defector and screen with self tapping screws
10. Retune carb yet some more
11. Enjoy even more power
p.s. always clean out metal shavings with soap and water before re installing muffler
Quote from: BFay2172 on December 23, 2013, 09:45:55 AM
The owner pulled it off the shelf gassed and oiled it and started it and said they were pre tuned from the factory which I thought was weird but I didn't argue.
NO NO NO! Go back and argue. Politely, but argue my friend. That saw is likely running a little on the lean side.
I'd suggest you open up the hi 1/4 to 3/8 turn if you can. You'll find some of your missing power. :)
FWPT I bought the 288 deflector and screen a month ago and just haven't had a chance to tear into the muffler thanks for the run down of how to do it saves me from asking!
Spike60 I know I should have asked more questions about it But when I asked about tuning it he said their was no need. A friend of mine is certified in small engine repair so ill have him put the tach on it an make sure I have it set right. Is it turn out for more fuel? I try not to play with things I'm not real familiar with to avoid wrecking something. Thanks for the responses!
Yes turning the Low and High screws counterclockwise feeds the saw more fuel. I wouldn't mess with the low screw if it idles fine and accelerates without any hesitation. Like Spike said almost every saw come tuned lean from the factory, so opening up the H is a must the vast majority of the time.
(https://forestryforum.com/gallery/albums/userpics/34486/20130906_104500%7E0.jpg) Here is the saw with its 28" bar it wears sometimes when I'm cutting big soft wood generally boxelder on fench lines.
Thanks! I should have had someone tune it for me right away but I want to learn how to do it myself so I don't have to always ask for help. This forum is a great place to learn and has already been extremely helpful!
BFay2172,welcome to the forum.
I have ported most likely 20 or so of these 365/372xt and have zero problems and they perform better than the old style xp as they make more torque , sure in 8 by 8 a 372xp ported most likely would beat a 372xt ported but in 20 inch plus oak the xt will walk all over the xp , The xt saw has more torque stock but the powerband rpms is lower so you need to get those rpms up with out loosing any torque , Mine under load turn about 12,200 rpms in the wood and thats under a good load . So if you need more power get someone to port it
(https://forestryforum.com/gallery/albums/userpics/34486/20131223_182849.jpg)
Got the muffler modded tonight but didn't get a chance to adjust the carb its hitting the limiters. I was reading the thread posted about a husqvarna are the carbs set up the same or is there a different way to remove the limiters on a jonsered?
Ehp if this doesn't help much I have been considering getting it ported. Thanks for the responses! Sorry for the silly questions I'm very new to modding and tuning saws.
Quote from: FWPT on December 23, 2013, 03:43:11 PM
p.s. always clean out metal shavings with soap and water before re installing muffler
Local guy decided to try a muff mod. Drilled some holes in his muffler without even taking it off the saw. Quickly wiped itself out.
I assume the larger RWJ carb of the XT will work really well in combination with a ported 51.4 mm xpw top end - but it is getting a bit expensive, and I am no expert....
Also be aware that your saw really isn't an all day 30" oak saw. Skip chain and a muffler mod/good tune will help. A really good chain is probably the best thing you can do
I made sure to clean the muffler out really good before I reinstalled it on the saw.
Huskstihl I know its not an all day saw for big oak and I generally don't have a lot 30+ inch that I cut but I have 2 very large red oaks to cut both being around 50 inches on the butt I'm guessing. It rips through the smaller oak and cherry and maple that I cut a lot its just a little under powered in the real big stuff. Can i push the limiter caps in and adjust how i need to? Thanks for the responses guys Im learning alot here already.
Quote from: ehp on December 23, 2013, 06:58:54 PM
I have ported most likely 20 or so of these 365/372xt and have zero problems and they perform better than the old style xp as they make more torque , sure in 8 by 8 a 372xp ported most likely would beat a 372xt ported but in 20 inch plus oak the xt will walk all over the xp , The xt saw has more torque stock but the powerband rpms is lower so you need to get those rpms up with out loosing any torque , Mine under load turn about 12,200 rpms in the wood and thats under a good load . So if you need more power get someone to port it
Completely disagree with Ed on this one, the non XT saws make more power end of story!! Not even close IMHO!! But then again I don't make money on porting POS saws, so what do I know.
Quote from: Andyshine77 on December 24, 2013, 01:15:16 AM
Quote from: ehp on December 23, 2013, 06:58:54 PM
I have ported most likely 20 or so of these 365/372xt and have zero problems and they perform better than the old style xp as they make more torque , sure in 8 by 8 a 372xp ported most likely would beat a 372xt ported but in 20 inch plus oak the xt will walk all over the xp , The xt saw has more torque stock but the powerband rpms is lower so you need to get those rpms up with out loosing any torque , Mine under load turn about 12,200 rpms in the wood and thats under a good load . So if you need more power get someone to port it
Completely disagree with Ed on this one, the non XT saws make more power end of story!! Not even close IMHO!! But then again I don't make money on porting saws, so what do I know.
Well, he didn't even mention the 51.4 mm version of the non-xt 372xp, that he used to say beat the 7900, when both were ported....
I suspect the larger carb of the xt, combinened with the non-strato 51.4 mm top end would be a winner! :)
Andy you must of not seen or run any good XT's , hell I got guys parking their ported 395's built by other people cause the ported 365/372 XT were faster plain and simple and I donot make money porting saws , playing with saws has always cost me money but I like to play with them, But I do make my money using my ported saws everyday unlike most that cut a tree here or a tree there , I cut and skid by myself 30,000 to 50,000 feet of hardwood logs per week and thats every week not once in a while and thats a fact , just ask either sawmill here and they will tell you , For every saw I port I turn down 25 or more , I'm just not interested in all the BS , I mostly build saws for friends now and any one that has run one of my XT's will tell you they flat out haul hard or you could just come up and we will try your xp against one of my XT's in a 30 inch plus white oak and see how it fairs , if you want to go bigger I got bigger white oak here to
Quote from: ehp on December 24, 2013, 05:57:38 PM
Andy you must of not seen or run any good XT's , hell I got guys parking their ported 395's built by other people cause the ported 365/372 XT were faster plain and simple and I donot make money porting saws , playing with saws has always cost me money but I like to play with them, But I do make my money using my ported saws everyday unlike most that cut a tree here or a tree there , I cut and skid by myself 30,000 to 50,000 feet of hardwood logs per week and thats every week not once in a while and thats a fact , just ask either sawmill here and they will tell you , For every saw I port I turn down 25 or more , I'm just not interested in all the BS , I mostly build saws for friends now and any one that has run one of my XT's will tell you they flat out haul hard or you could just come up and we will try your xp against one of my XT's in a 30 inch plus white oak and see how it fairs , if you want to go bigger I got bigger white oak here to
If I can run your fuel sure! JK. bat_smailey Ed the 372xt saws haven't done all that well down here, Spike can fill us in there. I've yet to run a ported 372xt that can run with a good old 372. Some guys are getting much bigger gains than you were back in the day. The 372 you made me is a strong runner, but nothing like some others I've ran and ported. Good work saw nonetheless. Some guys are pushing compression too far for a work saw IMHO, but running 32:1 seems to help. Sill prefer my EHP7900 over any 372 for some reason. ;)
I can make alot bigger gain or hotter saw but that is not a worksaw nor will it ever live in real world cutting , a cookie cutter is just that , a cookie cutter , I learnt my lesson a long time ago to only build a saw that is a worksaw cause they always ask for the fastest you can build then they sell the saw to a guy cutting firewood or to a guy that is putting the saw on a mill so how long is a cookie cutter going to last in that job , very short life span . I know all about the main bearing flying out of the XT's but I tell everyone of the guys running mine to use lots of oil and I have had Zero bearing problems and I got 2 logging gangs up north that have about 1 1/2 million feet on their XT's , The saws I have been building in the last couple years are all pretty much for loggers not weekend warriors so the saws get alot of use , if you want to see a saw that will blow your mind then come and run one of my own saws like my 562 and as far as fuel goes I doubt if our fuel is any better than yours
Oh oh, I think I started a controversy here. Sorry men. :)
I trust what Ed is saying, and he's probably found the recipe for the XT's that others haven't. I suspect that each saw has it's own best route to take, and what works on one may not work on the next. I don't do any porting myself, so my comments were based on what a few guys who do had told me. Which essentially was that they could not get as much of a gain from the XT's as from the originals.
Stock, I can say that the XT does have more power than the original 372. More of a "be able to lean on it" torque type of power. My own XT was running with ported saws with the tag still hanging on it. Only thing I've done is a muff mod.
The bearings? I've seen a few go out. I think part of the problem is running them too lean. They come out of the box lean and dealers who sell them without adjusting them are asking for failures.
From the out side looking in, I would bank on what "ehp" is saying. Without ever meeting or knowing any of the builders referenced or implied here in the discussion. Something about real world use seems to flush out the theoretical from the facts. :-X
Just seems to me those x-torqs have a lot of port area to use along with the potential gains in flashing ignitions/electronics. Sooner or later physics has to play a roll. If you can take advantage of all that flow potential, more power has to result. Sounds like some like ehp just have figured it out faster than the rest. :new_year:
( Do I need to worry about bearing failure in mine?? I haven't used it much because all hobby saws (except the 555) get picked first...like the 365/271 hybrid saw. My only gripe is I haven't yet figured how to tune it to where it starts easy..something just isn't right yet. And it's MY failure to figure it out, not the saw. Have focused on just about every other saw I own but it... )
every different type of motor takes different porting , if you look at what most other builders gain over a stock 372 xp motor compared to their ported 372xp , I gain that much or more on the xt's saw so if the stock xt is faster than a stock xp then there is no reason a ported xt would beat a ported xt , the cutting gangs up north all ran ported 372s or ported 385/390s and all perfer the ported xt's , they cut mostly hard maple so that is where the more torque really shows up . From what I have been seeing and seeing this alot is both Husky and Stihl sure need to get better people for trouble shooting cause I have 2 husky , 1 johny, 3 stihl dealers that all phone me or send me their saws for me to fix if its not something simply and the autotune saws the dealers donot even want to touch , just send them here , I find it abit strange that all those dealers tell their customers to phone me . My problem is I donot have any time during the winter time as that is my logging season for cutting high grade hardwood as the mills donot want it cut once it gets warm outside .
As far as starting , I donot not use the decompressure at all on a xt , next I choke the saw and pull it once then take choke off and it will start everytime even if it has sat for a whole day , once you get the starting proper they start very well
and as far as figuring the saw out just look at my videos on youtube the first xt I built was built put together once and see the gain it made , that saw has cut over 1 1/2 million feet of hardwood up north and was the first xt I ever built , Bob liked that saw so well he order some more of them then the other gang ordered more XT's and those cutters are hard on saws so to stand up to them speaks lots for the saws
Definitely don't want to use the deco on the XT's. It drops the compression so much that it becomes harder to start. And 3-4 pulls max with the choke out. (Except after running it dry). More than that and your flooded.
Quote from: ehp on December 25, 2013, 12:18:14 AM
I can make alot bigger gain or hotter saw but that is not a worksaw nor will it ever live in real world cutting , a cookie cutter is just that , a cookie cutter , I learnt my lesson a long time ago to only build a saw that is a worksaw cause they always ask for the fastest you can build then they sell the saw to a guy cutting firewood or to a guy that is putting the saw on a mill so how long is a cookie cutter going to last in that job , very short life span . I know all about the main bearing flying out of the XT's but I tell everyone of the guys running mine to use lots of oil and I have had Zero bearing problems and I got 2 logging gangs up north that have about 1 1/2 million feet on their XT's , The saws I have been building in the last couple years are all pretty much for loggers not weekend warriors so the saws get alot of use , if you want to see a saw that will blow your mind then come and run one of my own saws like my 562 and as far as fuel goes I doubt if our fuel is any better than yours
Sounds good Ed.
However I know when it comes to talking to any saw builder/porter, especially the older guys. Take what they say with a big grain of salt. Example. I didn't give that saw the best numbers, it's just a this or that type of saw, I invented cutting combustion chambers, and the list goes on. teeter_totter
Nevertheless you've been more than fair with me, and I think you for that.
Have a great soon to be New Year.
Andre.
well I just came home from working and I got 5 more 365/372 xts sitting here waiting for me and a 395 , all from 1 dealer so they must work not to bad cause they sure want to send lots . Cutting the squish band is a mistake and once those guys start getting real people putting lots of hours on their saws they will find out why , On a saw like a 372 xt I donot want any more than 180 pounds of compression period and I donot want to see 200 pounds on any saw bigger than 50 cc , if its a cookie cutter than thats fine but for a real work saw 200 is to high , todays gas is just way to much up and down with ethanol and [I have typed a profane word that is automatically changed by the forum censored words program I should know better and could be banned for doing it] fuel, the engine has to live , Yes on a single cut a saw with 210 pounds of compression will beat the same saw with 180 pounds of compression in a single cut in say 20 inch oak , now let go to 20 cuts back to back non stop in that same size wood and see how they fair out and thats what happens in real world cutting , Guys blocking firewood for a living get paid by how much they block so there not going to do a single cut and talk about it , their going to be balls to the wall hour after hour . Thats is just my way of thinking , everyone can do whatever they want and that is what makes the world go around
im with you ed on compression of a work saw. I shoot for around 185 on a true make my living with it work saw. I too have several saws in loggers hands running with well over a million feet on them. I can also gain just as much on the strato saw as I do the old style but I am one who prefers the old style saw. i might grow to love the xtorq version more but since i don't log anymore i cant make that judgement with the limited time i put on them. i will say that i am a big fan of the auto tune strato saws. the 562xp/2260 is hands down in my opinion the best all around 1 saw plan out there today.
I think 1 problem that is coming thou Terry is when they bring the new 572 saw out that will end all of the 372 xp or xt saws , yeh I hear all about the new 572 has a bunch of problems so that is why they are not brings it out as soon as we wanted it , I my small mind I'm thinking abit different , they have not brought the new saw out cause they got tons of xt's sitting at dealers and in ware houses all over the place , hell up here some dealers still got the old style xps sitting on their shelves . You cannot tell me that Husky does not have someone smart enough to build a saw with out much in the way of problems so I'm not buying that line but I'm sure Husky does not want to put out the new saw with a ton of xt's still sitting cause they know the old style saws will not sell , Just look at what happened with the 359/357 once the 562 came out , my 1 dealer here put those in the back room cause he could not sell those saws . One thing here thou is Husky took mquite a drop in price on some models , the 365xt was $919 on are $669, the 562 is now $749 so they are getting closer to what you guys are paying which is nice
ed I ran the new 572 in beta testing for a couple of months and will say with 100% certainty that its a stronger saw than the old 372 or the x torq. if it responds as well to porting as the other auto tunes it will be the biggest hit in long long time for chainsaws period
that is what I'm thinking so they will need to get rid of all the older saws before letting the new one out , I'm quite surprised that I have not broke the crank in my 562's cause I was thinking that will be the weak point but so far they have hung in there real well
The 572 has my interest.
IMHO cutting the squish band properly is the way to go, but it's not necessary in a real work saw like you said.
Terry , I got a 27 inch oak log sitting up just perfect on the landing to test a saw or 2 in , I'm going to try this 395 and 1 of the 372 xt's in it and the 562 , I put a couple tanks of fuel threw both the 395 and 372, the 395 came with a 28 inch bar on it so will use it in all test runs , will see if the little 562 can hang with the stock 395 in that big of a cut , my biggest problem is going to be getting enough bar oil to the 562 to keep the chain spinning free
I know that in 20'' wood the ported 562's that ive been doing will cut right with anything that's off the shelf in the cc classes above it. haven't really tried it with anything longer than the 20'' bar. I have guys that change saws like they change clothes and the only saw they will hold onto is the 2260/562xp. they say that no matter how many saws or what all sizes they take out to the woods the auto tune wonder goes with.
with a 20 inch on them the ported 562 is alot stronger than either the 372 or stihl 461 but the 395 is quite abit bigger than either of them , I run 22 inch on my 562 , I just could not get enough bar oil when running the 24 inch in white oak but it gets by with the 22 inch
My Jonsered 2172 has not impressed me all that much. Maybe I'll try a muffler mod and see what happens. It's "good", just not as great as I expected. I'm running a short bar on it too...
Quote from: deerslayer on December 29, 2013, 05:12:28 PM
My Jonsered 2172 has not impressed me all that much. Maybe I'll try a muffler mod and see what happens. It's "good", just not as great as I expected. I'm running a short bar on it too...
How much time is on saw? A MM and carb tuning will really help IMHO.
I got my muffler mod done and tuned my 2172 and it runs like a whole different saw now. I think I have it a little rich still but ill keep working on it. It pulls the 24 inch bar through red oak like its butter now! These guys know their stuff!
just figuring out this new stuff as I got a new computer so everything has changed with posting videos , the 395 was the fastest in that oak at 28.07 seconds , the 372 was 40.74 seconds and the 562 was 31.84 seconds , Biggest problem for the 562 was its not getting enough bar oil and chain was pretty tight once cut was done , 28 inch bar is just way to much for the saw in oak, tried in pine and it was fine . With a 22 inch on both saws the 562 and the 395 were a dead heat , I cut with a 22 inch bar on the 562
Quote from: Andyshine77 on December 29, 2013, 07:30:46 PM
Quote from: deerslayer on December 29, 2013, 05:12:28 PM
My Jonsered 2172 has not impressed me all that much. Maybe I'll try a muffler mod and see what happens. It's "good", just not as great as I expected. I'm running a short bar on it too...
How much time is on saw? A MM and carb tuning will really help IMHO.
I don't know how many hours. Certainly enough for it to be well broken in. The 20" bar that was on it (Jonsered branded) still has most of the writing on it and I have no reason to believe it wasn't the original bar when I got it from a pawn shop. If I had to guess I'd say about 20 to 50. The saw is physically in very good shape.
I am currently running an 18" on it with 3/8" chisel (.058 gauge) I've probably run it two hours with that set up. (maybe four tank fulls)
The saw cuts fine and is in tune. I am not fond of the spring anti-vibe as the saw feels somewhat mushy. Also, when bucking a number of rounds in a row, the exhaust tends to make my left hand hot (uncomfortably so). I don't "hate" the saw, but I am certainly not fond of it. It will probably get culled eventually. Most of my saws I run stock. I have only one saw now that has a muff mod and one I recently added a dual port cover.
Quote from: ehp on December 29, 2013, 10:13:01 PM
just figuring out this new stuff as I got a new computer so everything has changed with posting videos , the 395 was the fastest in that oak at 28.07 seconds , the 372 was 40.74 seconds and the 562 was 31.84 seconds , Biggest problem for the 562 was its not getting enough bar oil and chain was pretty tight once cut was done , 28 inch bar is just way to much for the saw in oak, tried in pine and it was fine . With a 22 inch on both saws the 562 and the 395 were a dead heat , I cut with a 22 inch bar on the 562
I hada gtg here at he house not long after the 562 came out . I had bought one and went thru my normal rounds of port testing till I got my desired recipe and had used it for a few months at work. I had a guy from north caroline say theres no way that my ported 562 would out cut his 044. well long story short I handed him the saw and stop watch and after a while him and his buddy came back to me shaking there heads at just how bad that saw had beaten the 044.
I'm pretty sure a ported 562 will out cut any stock 75cc saw pretty easy , I finally got the videos up on youtube , this new windows 7 I'm not liking at this point , takes about 3 times longer to do what I could do when using Windows XP
Wow so the ported 562 was about 9 seconds faster than the 372 was the 372 stock? I would eventually like to port my 562 it is very impressive stock id like to see what it would do modded but I know nothing about porting so I don't dare trying on my only new saw maybe I'll try it on my old 2171 first. As far as the 2172 I see you guys have mixed reviews on them my local jonsered dealer has been trying to get me to buy one and hes been very good to me in the past so I guess I'll have to try one for myself
I'm not going to say what is or isn't as fact, but the 562 I ran was on par with my personal ms362, which wasn't on par with Nik's like new stock 2171. I've been told the 562 I ran was a bit of a dog compared to other 562's, so take that for what it is. I have a stock MM 346 that will cut with some ported 346's. Some saws just run better than others.
Take into consideration some make their living selling new saw, not discontinued models. Propaganda is what it is, I wouldn't trade one 372 for two 562's, but that's me. :new_year:
yes the 372xt was stock but that 28 inch bar was more than what it wanted to cut with , videos are on my youtube channel , and I would far sooner cut with the 562 once ported over any 372 , the 562 is alot lighter to cut with and has alot of balls , I get alot of cutting up near 4 feet off the ground on the stump as I get alot of oak with 2 to 4 stems coming up out of 1 stump on the ground , I can cut more trees per day with the 562 and not feel near as tired out as with the bigger saws , I'm logging pretty much beside my house so home for lunch and like I said before I donot make money from playing with saws , Once you really sit down and figure out what you really make working on saws after you pay for all the parts and other cost there is not much money in it , Now I'm pretty lucky to be logging where I am cause there is alot of high grade timber as the amount of money you make is higher than other places , so far today I cut and skidded 22 good size oak trees and will cut that much again when I go back , so far its been taking 22 or 23 trees to make a load for the log truck and a load has been running any where from 7600 to 8100 feet if solid oak cause of the weight , if maple he can put abit more on as its lighter , I still got to cut them up but plan on doing that tomorrow after lunch as I got 70 or so other trees out there as well and will pile them up in the dark with the skid steer
Yeh I love my 562 even stock its got a lot of power for how small it is the only time I wished for one of my bigger saws is in yard cutting up big hardwoods. Sounds like you had a pretty darn good day of cutting!
yes it was a good day and not ever day goes that well , mill phoned tonight so will be bucking up first thing in the morning , I'm pretty much out of room anyways . If you ever think about porting your saw jusy give Terry a call/pm , he can hook you up with a good worksaw
OK thanks!
Brad and Masrermind do great work as well as Eric Copsy.
On the 562 topic, Rounder (Sam) has put away his ported 372xpw's and 390's and is logging big softwood full time with ported 562's. They are also just so darn cute n' little!
That being the case, (and I would certainly change my mind if I had to haul a saw through the woods all day every day) as cool as the quiet, little, efficient and strong new saws are, I'd still rather have a little of this
http://www.youtube.com/watch?v=NuNBp5uei7o&feature=player_detailpage (http://www.youtube.com/watch?v=NuNBp5uei7o&feature=player_detailpage)