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241c , 261c , 362c adapter for K/N filter

Discussion in 'Chainsaw' started by Frank Rizzo, Jan 3, 2019.

  1. SmellyPirateHooker

    SmellyPirateHooker ArboristSite Guru

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    I'd hate to interject some seriousness at this point but I agree and disagree with you. Yes, and mostly in larger engines, the trend I'd moving away from K&N due to the ineffectiveness of fine particle filtration. Kind of makes sense with larger engines as ring seal becomes a bigger issue as bores get larger. With saws? I'm not so sure it's as critical. Usually bores are killed by other means then bad filtration. Saws used to even come with simular filters anyway, just not in that shape. A K&N would probably be more beneficial then an undersized stock filter once it's flow is compromised in terms of how clean the air charge is, where the air is finding alternate routes to enter.
     
    Frank Rizzo, huskihl and Stihl 041S like this.
  2. cuinrearview

    cuinrearview Red saw lover

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    Do you fix many saws? I see damage from poor/no filtration on about 1/3 of the saws I repair. I only do a couple dozen a year but it's more common than one would think. Sometimes the damage is secondary to what did the saw in, but I see evidence of dust/debris in the cylinder much more than one would expect. If chains are kept sharp and filters kept maintained I think the issue is a non-issue, but most operators choose to abuse the chit out of stuff.
     
  3. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    I could run a K&N filter on my saws here in this climate and dust would never be an issue due to our damp air and lush vegetation. Motorcycles are subjected to a lot more stone/ mineral dust than chainsaws that see more fine wood dust unless one is operating in a desert atmosphere. My old Pioneers from the early 80`s are still chugging along perfectly fine running K&N filters that at most get blown off with compressed air once or twice a season. I have yet to find any fine dust inside the carb throat and there is never a day here one would see stone dust in the air. If I were cutting in Nevada or Arizona then things might be different as there is dust in the air there on a daily basis and its not wood dust.
     
  4. pioneerguy600

    pioneerguy600 Lost in Space Staff Member

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    I see piston damage on saws run with no filter and filters with no flocking left on them, just wire screens left that let in particles not just dust. Clogged filters cause such a rich condition that most users know that the filter needs cleaning, these saws are run by those that have years of experience cutting up their own firewood. The inexperienced kill saws constantly with straight gas, bad gas and letting saws sit for years with old gas in them.
    , I doubt a K&N filter would kill them as fast.
     
  5. SmellyPirateHooker

    SmellyPirateHooker ArboristSite Guru

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    It's not my business but I've done a good handful. Mostly my stuff or saws I've picked up to play with. I usually see damage from carbon or stuff from dry gassing. Nothing really filtration related. I'm not saying it does happen, but when it does I'm sure it's for extreme reasons like the filter disintegrating or idiots never cleaning them. I mean we all clean our saw filters, what are you taking out of yours? I just see saw dust on my filters.
     
  6. SmellyPirateHooker

    SmellyPirateHooker ArboristSite Guru

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    I mean in perspective, I've seen what sand blasted cylinders look like in a truck ran without a filter off road. There's no mistaken it.
     
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  7. cuinrearview

    cuinrearview Red saw lover

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    I don't know how he did it, but a neighbor gave me a blower last year that had ingested part of a pull cord.
     
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  8. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    7637BE52-5E35-4197-A49A-FBB992E82B5D.jpeg 362c filter after some run time ; you can see where the fines are starting to get sucked past the medium and will eventually make it into the firing chamber ... fines like these will kill a saw eventually ! In addition the filter medium clogs quickly (like 2 tanks of fuel or less ) and thus the drop tap and swap dance... The 241,261,362,462 all use these filters ... they work until they don’t and start sucking around the seal ... yes you can use grease around the lip but ... a plastic finger twist cam - lock begins to wear and after repeated cleanings of filter , [i.e. remove cover , remove filter by twisting CC , (and hope and fines don’t fall in) tap filter and reinstall by a clockwise twist , reinstall cover ] the “seal” begins to lose integrity, anyone who owns/runs these model saws will know exactly what I’m getting at ... I can cut for hours only stopping to fuel up / bar oil and touch up / replace chain ... The increase in productivity, elimination of filter maintenance downtime in addition to the performance gain you get makes this a success from my perspective ! Your mileage may vary !
     
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  9. cuinrearview

    cuinrearview Red saw lover

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    I think this is a manufactured crisis.
     
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  10. dmb2613

    dmb2613 ArboristSite Guru

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    I use to race go karts ,limited modified, we ran filters with a foam on the outside the foam was always sprayed with oil. Dirt tracks. I have never had an engine failure due to dirt in the carb.
     
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  11. SmellyPirateHooker

    SmellyPirateHooker ArboristSite Guru

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    Now that's talent
     
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  12. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    Yah , well those who actually own/run these saws on a regular basis wood disagree with you ! Hotsaws101 made a comment in his recent video concerning the filter ... his comments about it start at 12:48 ... Jack is an excellent faller and very very good Saw builder and has cut almost 1/2 million board feet with this 462c , When he speaks I listen !
     
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  13. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    If you are talking Husqvarna 395xp then no problem - probably one of the best if not the best filtration systems ever designed ! I know , I own one
     
  14. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    064 with muffler mod and K/N filter ; no adapter; velocity stack instead - 85cc 362c hot woods ported , adapter with K/N filter - 59 cc
     
  15. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    Winner winner ; chicken dinner !
     
  16. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    241c hot-woods port stock filter 261 hot woods port with kit installed 362c hot woods port with kit installed 064 with velocity stack K/N filter - no porting , muffler mod tuned rich
     
  17. fulladirt

    fulladirt ArboristSite Operative

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    My 600p wood probably whoop those turds.... and definitely filter better lol
     
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  18. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    Do I hear an echo ... echo ... echo ? A 600p vs a hot-woods ported 362c with custom intake ? Cmon , you are down 1 hp from jump street ! Same bar,chain and wood —— never happen in a million years lol !
     
  19. Frank Rizzo

    Frank Rizzo Custom Saw Modification 241c-441c,660 specialist

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    Here’s a ported 600p by a member here; pay attention to the cookie cutting part in the beginning now here’s my hot-woods ported 261c with kit installed ... echo 59cc ; STIHL 50 cc looks like the STIHL is quicker thru the timber while giving up 9cc (which is a lot in a piston-port motor )... this is a “known” chainsaw porter in above video ... not sure what wood he’s cutting but probably “Ohio” hardwood ... I’m cutting hard maple
     
  20. fulladirt

    fulladirt ArboristSite Operative

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    You took the bait but missed the best part there jerky!
    Thought we were talkin to the chess master here lol
     

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