Author Topic: 281 Husqvarna, carb problems?  (Read 393 times)

0 Members and 0 Guests are viewing this topic.

Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
281 Husqvarna, carb problems?
« on: January 13, 2014, 05:18:40 pm »

Hey folks,

First post.

 '97   281 Husq'.

Put in a new carb kit, new fuel line, fuel tank grommet and new hose.

Was working before this upgrade, now it don't.

Can start it, have to hold the choke plate open just a crack to allow it to idle, as soon as the choke lever is pulled back, plate open... she dies.

Have stripped the carb twice, blew it out, soaked in carb cleaner, assembled with care.

As previously mentioned. With a worn needle, soggy, old diaphragm, gas leaking all over place from a rotten fuel tank grommet, **** fuel hose, was able to start and run... cut with it.
Treat her nice add some new stuff and poof! , no go.

The tilliston carb H, where is the metering lever supposed to sit. Flush to the carb floor or flush to the lip where the gasket lays?

Have had it both ways today. A little better with the lever flush to the carb floor. See pics please.

Now I am thinking air leak, seals? just dunno at this point. Why would it run, and then not after fixing all with in a couple of weeks?

Compression good, piston not scuffed up, she digs pretty good when cutting.

Need the old beast for chainsaw carving and have a 7 foot on the stump old wolf pine to fell, right soon.

Tanks for reading guys, have a good one.

Eliott

Share on Facebook Share on Twitter


Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
Re: 281 Husqvarna, carb problems?
« Reply #1 on: January 13, 2014, 05:21:27 pm »
Pics too large.
Not sure how to get down to 400 kb's or lower. If successful, will post them.

Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
Re: 281 Husqvarna, carb problems?
« Reply #2 on: January 13, 2014, 05:27:23 pm »
pic

Offline jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2083
  • Karma: 161
  • Location: MD
Re: 281 Husqvarna, carb problems?
« Reply #3 on: January 13, 2014, 07:50:03 pm »
The metering lever should be level with the floor or recessed area where the needle,lever and spring are. Make sure your gasket is to the carb and metering diaphragm to the cover, on the pump side the pump diaphragm to the carb and gasket to the cover.  Hope this helps
FEAR NO TREE. FEAR GOD.
Like Like x 1 View List

Offline jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2083
  • Karma: 161
  • Location: MD
Re: 281 Husqvarna, carb problems?
« Reply #4 on: January 13, 2014, 07:53:55 pm »
Your lever height in your pics look to be right. On the metering diaphragm the side with the disc goes towards the lever.
FEAR NO TREE. FEAR GOD.

Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
Re: 281 Husqvarna, carb problems?
« Reply #5 on: January 13, 2014, 07:59:05 pm »
Thanks for that input. The diaphragm nib fits into the meter lever notch doesn't it ?

Offline jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2083
  • Karma: 161
  • Location: MD
Re: 281 Husqvarna, carb problems?
« Reply #6 on: January 13, 2014, 08:21:50 pm »
Yes on some they do. Did you keep your old one to match it up. Also not that familiar with that model husky, how does the gasket or seal look where the carb mounts. Could be an air leak there. Also just go back where you where working and make sure everything looks right. It is easy to forget something no matter how many times you have done it.
FEAR NO TREE. FEAR GOD.

Offline jmester

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 2083
  • Karma: 161
  • Location: MD
Re: 281 Husqvarna, carb problems?
« Reply #7 on: January 13, 2014, 08:29:38 pm »
Also check you basic setting of the high and low speed screws a go place to start would be 1 to 1 and 1/4 turns out from a light seat.
FEAR NO TREE. FEAR GOD.

Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
Re: 281 Husqvarna, carb problems?
« Reply #8 on: January 14, 2014, 07:02:34 am »
jmester, thanks again. the H-L has been set many times,many different ways.

As I trouble shoot the air filter is off, top cover off, and screw driver handy to adjust as it tries to run.  Even if they were off a bit she would still run way better than it does now,

Pretty sure the diaphragm slips into the notch.

I am knocking off the clutch today.

You have a clear way with description,  :), appreciate you coming in on this post.

Offline Eliott

  • 4 cube
  • **
  • Posts: 25
  • Karma: 1
Re: 281 Husqvarna, carb problems?
« Reply #9 on: January 14, 2014, 09:59:16 am »
Killians', hi, thanks for the input.

New needle. Making sure it is free'd up and lever tangs are properly fitting into the groove at the top of needle.

Took carb apart once again last night, did a complete strip down, immersed in carb cleaner. There was some small rust'dirt particles at the bottom of the glass receptacle... surprised me as it has been cleaned and blown out twice already.

Will see how it runs shortly. Starting to source out seals for the 281, may have to go that route, need to do a test to see if seal is seeping... the easiest way possible. :-\


 

Related Topics

  Subject / Started by Replies Last post
5 Replies
838 Views
Last post February 21, 2012, 01:29:32 pm
by 660magnum
0 Replies
159 Views
Last post May 13, 2012, 01:55:43 pm
by Cut4fun .
7 Replies
650 Views
Last post August 13, 2012, 03:29:59 pm
by Cut4fun .
5 Replies
621 Views
Last post January 02, 2013, 08:23:58 am
by William Greene
6 Replies
1224 Views
Last post June 02, 2013, 09:30:02 pm
by brokenbudget
5 Replies
411 Views
Last post November 27, 2013, 10:05:55 am
by KilliansRedLeo
7 Replies
685 Views
Last post February 13, 2014, 03:50:29 pm
by Spike60
3 Replies
505 Views
Last post October 06, 2015, 02:35:12 pm
by tassin85
3 Replies
271 Views
Last post September 06, 2020, 07:58:46 am
by Spike60
3 Replies
140 Views
Last post March 11, 2021, 07:13:32 am
by Cut4fun .