Author Topic: Jonsered 490  (Read 551 times)

0 Members and 46 Guests are viewing this topic.

Offline Doug59

  • pruner
  • *
  • Posts: 1
  • Karma: 0

  • Total Badges: 3
    Badges: (View All)
    Level 1 Search Windows User
Jonsered 490
« on: November 02, 2016, 05:59:37 pm »
Hi. Got a old 490 hasn't ran much but was always a good runner. But know it starts right up but will bog down under high rpms. Brand new plug,gas tryed tweaking the carb screws ever so slightly. I can get it to rev good then it will bog down. Any ideas? thanks

Share on Facebook Share on Twitter


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: Jonsered 490
« Reply #1 on: November 02, 2016, 06:43:44 pm »
Stiff diaphragms maybe.  Should be worse if trying to make a cut. Running out of fuel. WAG.  Check and  rebuild carb.

 

Related Topics

  Subject / Started by Replies Last post
10 Replies
3700 Views
Last post August 16, 2012, 10:13:21 am
by Iron City
Jonsered 670 630 625

Started by Cut4fun . « 1 2 ... 12 13 » Jonsered

120 Replies
6898 Views
Last post January 30, 2024, 09:47:18 am
by Cut4fun
Jonsered 525

Started by joker « 1 2 » Jonsered

10 Replies
2080 Views
Last post January 03, 2016, 02:42:43 pm
by leec
4 Replies
839 Views
Last post December 22, 2014, 06:14:48 pm
by Cut4fun .
7 Replies
661 Views
Last post January 20, 2015, 08:46:22 pm
by man of stihl
0 Replies
412 Views
Last post October 10, 2015, 02:12:24 pm
by Cut4fun .
1 Replies
673 Views
Last post October 13, 2015, 12:24:47 pm
by Cut4fun
7 Replies
1350 Views
Last post November 24, 2016, 10:29:54 pm
by RoyM
Jonsered 801

Started by 3000 FPS « 1 2 3 4 5 » Jonsered

42 Replies
4504 Views
Last post November 29, 2018, 07:10:18 am
by HolmenTree
4 Replies
1010 Views
Last post February 18, 2022, 09:26:20 am
by Cut4fun .