Author Topic: Unable to start 266  (Read 922 times)

0 Members and 22 Guests are viewing this topic.

Offline scotto

  • pruner
  • *
  • Posts: 3
  • Karma: 0

  • Total Badges: 6
    Badges: (View All)
    Level 2 Second year Anniversary Topic Starter Level 1 First Post One year Anniversary
Unable to start 266
« on: January 14, 2012, 09:41:38 pm »
I inheirited a 266 in fairly good shape. Replaced gas line and filter, carb kit, set high and low to 1 1/4 out. I have good spark in plug, but will not fire.

Share on Facebook Share on Twitter


Offline TORX

  • 5 cube
  • ***
  • Posts: 91
  • Karma: 1

  • Total Badges: 21
    Badges: (View All)
    Level 5 Third year Anniversary Linux User Mobile User Karma Level 4
Re: Unable to start 266
« Reply #1 on: January 14, 2012, 10:01:05 pm »
Does it have compression?

Offline farmboy

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 1170
  • Karma: 150
  • Location: Hayesville, NC

  • Total Badges: 31
    Badges: (View All)
    Level 6 Eighth year Anniversary Seventh year Anniversary Sixth year Anniversary 1000 Posts Old Browser
Re: Unable to start 266
« Reply #2 on: January 15, 2012, 09:03:22 am »
While you are working on it replace the crank seals.  The clutch side is in the OP easy to change.  Flywheel side easy also, replace o-ring in the seal housing too. 
Shep
Like Like x 1 View List

Offline scotto

  • pruner
  • *
  • Posts: 3
  • Karma: 0

  • Total Badges: 6
    Badges: (View All)
    Level 2 Second year Anniversary Topic Starter Level 1 First Post One year Anniversary
Re: Unable to start 266
« Reply #3 on: January 15, 2012, 02:11:37 pm »
I have compression

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23708
  • Karma: 664
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair

  • Total Badges: 53
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Level 8 Apple User Eighth year Anniversary 20000 Posts
Re: Unable to start 266
« Reply #4 on: January 15, 2012, 02:26:54 pm »
What kind of compression? I had saws that felt good by feel pop pop pop, but didnt start either and had a partial stuck ring for just a 1/8" or less.

 Use a gauge and pull over till reading stops. 120 or better  I hope you see.

Also pull muffler and take a look at piston and rings.

Offline scotto

  • pruner
  • *
  • Posts: 3
  • Karma: 0

  • Total Badges: 6
    Badges: (View All)
    Level 2 Second year Anniversary Topic Starter Level 1 First Post One year Anniversary
Re: Unable to start 266
« Reply #5 on: January 17, 2012, 09:22:04 am »
Only 50 psi compression. New rings in the future........

Offline farmboy

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 1170
  • Karma: 150
  • Location: Hayesville, NC

  • Total Badges: 31
    Badges: (View All)
    Level 6 Eighth year Anniversary Seventh year Anniversary Sixth year Anniversary 1000 Posts Old Browser
Re: Unable to start 266
« Reply #6 on: January 17, 2012, 02:04:46 pm »
I had a 670 Jred do me that way too.  Finally did comp. check it was if I remember about 90.  It was scored around the corner next to ex. port and I couldn't see it through the ex. port.
Shep

Offline Alastair Scoular

  • pruner
  • *
  • Posts: 2
  • Karma: 0

  • Total Badges: 4
    Badges: (View All)
    Second year Anniversary Level 1 First Post One year Anniversary
Re: Unable to start 266
« Reply #7 on: January 27, 2012, 06:22:35 pm »
ive gotten 4 266 models, all blown up when given to me, why did all them have scoring on side of exhaust port, i know the one was a bad gas in cold weather that popped it.  what causes this type of scoring?

Offline HolmenTree

  • Nitro Hotsaw
  • *******
  • Posts: 1382
  • Karma: 199
  • Location: Manitoba Canada

  • Total Badges: 34
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Eighth year Anniversary Level 6 1000 Posts Seventh year Anniversary
Re: Unable to start 266
« Reply #8 on: January 27, 2012, 08:00:33 pm »
ive gotten 4 266 models, all blown up when given to me, why did all them have scoring on side of exhaust port, i know the one was a bad gas in cold weather that popped it.  what causes this type of scoring?
Can't say for certain without the p/c in front of me. Alot can be told from the intake skirt side too. If your talking cold weather, could be lean seizure from carb icing up causing the lean condition, snow injestion also. The saws probably didn't have the proper winter kits setup on them.
Making a living with a saw since age 16.
Like Like x 1 View List

 

Related Topics

  Subject / Started by Replies Last post
23 Replies
1568 Views
Last post August 26, 2013, 09:03:42 pm
by Playinwood
80 Replies
4823 Views
Last post February 13, 2014, 02:37:33 pm
by mastercraftka
25 Replies
2817 Views
Last post March 15, 2014, 12:24:09 pm
by KilliansRedLeo
24 Replies
1223 Views
Last post April 09, 2014, 10:47:19 pm
by JohnG28
4 Replies
515 Views
Last post June 21, 2014, 04:34:41 pm
by davierob2
electric start on 026

Started by JoeB « 1 2 3 » Stihl

22 Replies
1287 Views
Last post June 17, 2014, 10:20:25 am
by JoeB
1 Replies
533 Views
Last post July 22, 2014, 05:36:53 pm
by aclarke
53 Replies
2823 Views
Last post October 14, 2014, 12:42:12 pm
by Cut4fun .
2 Replies
366 Views
Last post August 28, 2014, 08:43:03 am
by JohnG28
4 Replies
1405 Views
Last post November 27, 2016, 08:59:14 pm
by mdavlee .