So,
this is my first post here, and i think it would be nice to start with chainsaw topic, aint it ?
I am not an arborist, sorry, but i do work at the moment for official Husky & Jonsered shop as a mechanic ( just an employee ).
Today i got a new "toy" home, this being a Husqvarna 242 XP. It came in as a trash, something we could use for spare parts, as its previous owner determined it when he bought a new chainsaw. We tend to get museum-old chainsaws ad then these not-so-old chainsaws, some are running, some are basket cases etc, but today i just could not believe that This saw was a junk in his opinion. So, i threw it in my car trunk, its better than a trash can anyways. Just some hour ago, i took it a bit a part and i think this is a small gem, as its suspiciously clean, and not bashed badly at all. I took the muffler out, to see the piston condition and theres not a single scratch, the old spark plug had a nice dry, greyish tone, the air filter was super clean for a "user" that we see everyday, and yet its not cleaned for our eyes. Maybe its owner was a good one who cleaned his saw well, as they are supposed to, or this hasnt been running that much at all, who knows, i dont. It had a good compression of about 153 psi when hot, is i can trust to old measuring device we have :msp_razz:
Anyways, i was thinking of converting this in to "g" model with hand warmers, but the factory spare part / repair book i read, says that the flywheel is a different, in xpG models. I do have several handles with heating elements, plus proper swithces, plus an "arctic" kit, a blue three piece set, for use in winter, when its colder than -15 celsius. So, if the flywheels the problem, i think i could scavenge it from some other junksaw, but then....after all...i do have a 351g and a 154 with warm handles too.
Then i started to look for modification topics through websites and forums, and thats how i found my way here. I think here was a lot of modding topics.
The first queston that i have, is what is the most cost effective way to get a bit more juice out of my tiny xp engine. I am not familiar a lot, with chainsaw mods, but i have played a good amount of time, with motocross & trial bikes and such and i think i am quite handy too. I have tig welder, lathe and a mill to use, and thanks to my work, a pretty good supply of new, as well as used chainsaw parts to use.
- Would it be wise, after regular service ( air filter, gas tank filter, spark plug, carb cleaning and a new gasket & membrane kit ) to start from muffler?
Its pretty restricted to keep volumes down, but i could split it easily, drill maybe some holes, or weld something to make it flow better, never mind the noise. I dont want to go to fitting bike exhaust´s as they pretty much seem to prevent doing actual woodcutting in the forest. I do limb and fell all sorts of woods, but this is small saw, so it will be used on smaller diameter stuff. I am not dreaming of any major increase in torque since this saw buzzes in a high rev quire. But maybe something could be achieved with better exhaust flow, paired with a re-setted carb. Right now, i can tune this to yeld the factory claimed 15.500, but i tuned it down to about 14.300, as its then seems to chew wood better.
-Then, have you tried to fit in a carb with bigger venturi / jet parts from some other, bigger chainsaw......246 migth have bigger carb if i remember it right.
-Porting / piston mods? Is there a possibility to file the piston in a certain way to change durations, and how, anyone tried this and happened to take pictures ?
.....i am very very greatful for any help and tips, people.
If it fails to be potential to be modified, i might have a few...like 20 boxes of chainsaw wrecks, to be used, to assemble one working frankensaw. Sadly in most cases.....yes, cases indeed, the lower ends are worn, broke, bearing jammed etc :msp_mellow:
Theres mostly Huskies and Jonsereds and all off them are older ones, i dont know why they dont bring after-millenium saws for spare part-uses ....or for tinkering