Author Topic: Porting for a Husqvarna 262XP?  (Read 1086 times)

0 Members and 0 Guests are viewing this topic.

Offline KilliansRedLeo

  • Nitro Hotsaw
  • *******
  • Posts: 2361
  • Karma: 80
  • Location: Rochester, NY
    • RoCHusqvarna
Porting for a Husqvarna 262XP?
« on: November 07, 2013, 11:00:57 am »
Got a very nice one-owner 262XP off a guy in Missouri, should be here next week. Saw runs but has a problem with choke and throttle linkage. Those are no big deal as I have OEM replacement parts on hand. I own several of these saws but have never felt that a port job was necessary as they run very well out of the box.

Just wondering what others thought about porting options for the 262XP?
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Share on Facebook Share on Twitter


Offline adam32

  • Piped Saw
  • *****
  • Posts: 429
  • Karma: 46
Re: Porting for a Husqvarna 262XP?
« Reply #1 on: November 07, 2013, 12:26:01 pm »
Every saw needs ported :)

Offline farmboy

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 1170
  • Karma: 149
  • Location: Hayesville, NC
Re: Porting for a Husqvarna 262XP?
« Reply #2 on: November 07, 2013, 12:45:15 pm »
Every saw needs ported :)
They are pretty much max from the factory.  You can widen the intake and ex. a little and set squish.  That's all I do to mine (down to 5 261/262 conversions).  Hard to improve on a factory hot rod. ;D  Biggest thing is a bigger carb HDA87 NLA is 16.06 venturi  IIRC.  The bigger carb really helps them. 
Shep

Offline KilliansRedLeo

  • Nitro Hotsaw
  • *******
  • Posts: 2361
  • Karma: 80
  • Location: Rochester, NY
    • RoCHusqvarna
Re: Porting for a Husqvarna 262XP?
« Reply #3 on: November 07, 2013, 12:49:43 pm »
Every saw needs ported :)
They are pretty much max from the factory.  You can widen the intake and ex. a little and set squish.  That's all I do to mine.  Hard to improve on a factory hot rod. ;D
Shep

Thanks Bill that is pretty much my thoughts as well. I will put up some pictures when it arrives.
Tim

A HDA-87 would be the way to go if I had one. Should you come across one that you don't need for yourself, PM me I will buy it off you! ::)
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline KilliansRedLeo

  • Nitro Hotsaw
  • *******
  • Posts: 2361
  • Karma: 80
  • Location: Rochester, NY
    • RoCHusqvarna
Re: Porting for a Husqvarna 262XP?
« Reply #4 on: November 07, 2013, 01:29:42 pm »
IIRC the HDA 87 was replaced by the HDA 120/120-1. Does anyone know what the specs changes were  between the 87 and 120?
"When the people fear the government...you have tyranny....When the government fears the people....you have liberty"

Thomas Jefferson
1743-1826

Offline farmboy

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 1170
  • Karma: 149
  • Location: Hayesville, NC
Re: Porting for a Husqvarna 262XP?
« Reply #5 on: November 07, 2013, 01:33:28 pm »
I've been looking for one for several years with no luck.  But if I do you will be first in line.   I've thought about a HDA 137 or 164 16.66 venturi from Poulan 330-3750 change shafts if needed but these carbs use a impulse line from top of carb to impulse barb in the crankcase.  You could drill crankcase and install impulse port.  If I can get caught up I may try it on the last 261 I picked up.  I'll have it apart anyway. 
IIRC the HDA 87 was replaced by the HDA 120/120-1. Does anyone know what the specs changes were  between the 87 and 120?
120 is 15.08 same as 144 IIRC.
Shep

Offline SawTroll

  • Nitro Hotsaw
  • *******
  • Posts: 1196
  • Karma: 68
  • Information collector
  • Location: Troms, North Norway
Re: Porting for a Husqvarna 262XP?
« Reply #6 on: November 07, 2013, 08:29:32 pm »
IIRC the HDA 87 was replaced by the HDA 120/120-1. Does anyone know what the specs changes were  between the 87 and 120?
As I remember it, it was quite early - likely around 1991.

The venturi went down from 16.67mm to 15.08mm, which is a lot.

I don't know how much it is possible to open the venturi of a HDA-120, but I do know that it isn't just a question of boring it out - you need to know exactly what you do!

Online jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2065
  • Karma: 158
  • Location: MD
Re: Porting for a Husqvarna 262XP?
« Reply #7 on: November 07, 2013, 08:47:04 pm »
Walbro list a HDA-87 with a16.66mm Venturi, and a 120 and 144 both with a 15.08mm Venturi. Would a carb from a 268 or 272 work for what you guys are looking for. That should be a Tillotson HS-260A, it has a Venturi of 17.46mm
FEAR NO TREE. FEAR GOD.

Online jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2065
  • Karma: 158
  • Location: MD
Re: Porting for a Husqvarna 262XP?
« Reply #8 on: November 07, 2013, 08:48:36 pm »
FEAR NO TREE. FEAR GOD.

Offline farmboy

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 1170
  • Karma: 149
  • Location: Hayesville, NC
Re: Porting for a Husqvarna 262XP?
« Reply #9 on: November 07, 2013, 10:28:39 pm »
Walbro list a HDA-87 with a16.66mm Venturi, and a 120 and 144 both with a 15.08mm Venturi. Would a carb from a 268 or 272 work for what you guys are looking for. That should be a Tillotson HS-260A, it has a Venturi of 17.46mm
HS260 has canted mounting screws, HDA is level you would have to make an intake block and linkage problems.
Shep

 

Related Topics

  Subject / Started by Replies Last post
15 Replies
1188 Views
Last post July 08, 2014, 10:51:38 am
by R.Singletary
22 Replies
690 Views
Last post August 29, 2013, 09:17:00 am
by fordfairlane78
5 Replies
485 Views
Last post November 22, 2013, 11:10:46 am
by KilliansRedLeo
5 Replies
241 Views
Last post January 01, 2014, 10:04:43 am
by KilliansRedLeo
0 Replies
549 Views
Last post January 21, 2014, 08:10:48 pm
by KilliansRedLeo
16 Replies
434 Views
Last post February 02, 2014, 04:33:10 pm
by KilliansRedLeo
1 Replies
241 Views
Last post July 21, 2014, 12:17:16 pm
by srcarr52
4 Replies
185 Views
Last post July 31, 2015, 11:32:02 pm
by SawTroll
2 Replies
62 Views
Last post August 16, 2016, 04:39:07 pm
by Eccentric
5 Replies
102 Views
Last post March 24, 2020, 01:44:07 pm
by Cut4fun .