Author Topic: Dolmar 7900 basket case.  (Read 4626 times)

0 Members and 52 Guests are viewing this topic.

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23699
  • 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: Dolmar 7900 basket case.
« Reply #20 on: February 18, 2012, 05:10:00 pm »
What did you end up using for topend? OEM 

Have you got to test run it yet?

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania

  • Total Badges: 31
    Badges: (View All)
    Level 6 Fourth year Anniversary Spammer 25 Posts in one day Karma Good 1000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #21 on: February 18, 2012, 05:31:33 pm »
OEM top end. Yes i cut with it. I think it needs the carb cleaned. It bogs between idle and WOT. The amish guy gave me a doner saw to get break parts off of. Its got a coil and carb i might take off of it to.
Ron

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania

  • Total Badges: 31
    Badges: (View All)
    Level 6 Fourth year Anniversary Spammer 25 Posts in one day Karma Good 1000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #22 on: February 19, 2012, 03:23:28 pm »
I'm having a difficult time getting that break spring compressed! >:(
Ron

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO

  • Total Badges: 39
    Badges: (View All)
    Seventh year Anniversary Sixth year Anniversary Fifth year Anniversary Fourth year Anniversary 5000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #23 on: February 19, 2012, 04:15:02 pm »
My experience, you have to strap the saw down and use both hands on the spring.

You have to use a tool that sticks up inside the coils about and inch so the spring doesn't bend yet doesn't hinder you getting the edge of the coil in the trough.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania

  • Total Badges: 31
    Badges: (View All)
    Level 6 Fourth year Anniversary Spammer 25 Posts in one day Karma Good 1000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #24 on: February 19, 2012, 04:24:35 pm »
Thanks. What a PITA!!!!
Ron

Offline Cut4fun

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 4664
  • Karma: 216
  • OHIO REDNECK

  • Total Badges: 44
    Badges: (View All)
    Tenth year Anniversary Nineth year Anniversary Eighth year Anniversary Level 7 Seventh year Anniversary Apple User
Re: Dolmar 7900 basket case.
« Reply #25 on: February 19, 2012, 05:24:40 pm »
Thanks. What a PITA!!!!

Glad it's you and not me learning that.

I have froze my fingers off 3 times working on that stihl trimmer today.

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania

  • Total Badges: 31
    Badges: (View All)
    Level 6 Fourth year Anniversary Spammer 25 Posts in one day Karma Good 1000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #26 on: February 29, 2012, 05:54:41 pm »
I figured out the carb issue. The impulse line was too long and was kinked. I snipped 1\2 inch off and it runs good.
Ron

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23699
  • 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: Dolmar 7900 basket case.
« Reply #27 on: February 29, 2012, 09:14:16 pm »
Got to love it when it's something simple.

Offline man of stihl

  • Nitro Hotsaw
  • *******
  • Posts: 1219
  • Karma: 71
  • NW PA
  • Location: nw pennsylvania

  • Total Badges: 31
    Badges: (View All)
    Level 6 Fourth year Anniversary Spammer 25 Posts in one day Karma Good 1000 Posts Third year Anniversary
Re: Dolmar 7900 basket case.
« Reply #28 on: July 29, 2012, 01:45:27 pm »
I swapped the Zama carb out with a Walbro today. I can tell it has better trigger response all ready. Any one else do this??
Ron

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 23699
  • 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: Dolmar 7900 basket case.
« Reply #29 on: July 29, 2012, 08:03:35 pm »
That was one of the first swaps guys were doing when 7900's came out. Walbro off the 372's.

Check some of those hotter woods ports running around and the carbs on them.  ;)

 

Related Topics

  Subject / Started by Replies Last post
201 Replies
8554 Views
Last post October 17, 2014, 11:42:53 am
by EHP
0 Replies
550 Views
Last post March 10, 2013, 07:58:03 pm
by Cut4fun .
28 Replies
3599 Views
Last post April 09, 2016, 02:02:55 pm
by computeruser
6 Replies
1758 Views
Last post June 30, 2017, 05:39:15 pm
by Philbert
7 Replies
577 Views
Last post February 05, 2014, 09:06:04 pm
by KilliansRedLeo
2 Replies
738 Views
Last post June 19, 2014, 03:32:20 pm
by farmboy
21 Replies
1166 Views
Last post July 08, 2014, 03:01:08 pm
by Nathaniel Vansickle
8 Replies
505 Views
Last post August 07, 2014, 06:16:36 pm
by foragefarmer
12 Replies
610 Views
Last post May 24, 2015, 08:38:38 pm
by OldJack
0 Replies
560 Views
Last post November 28, 2020, 08:10:57 am
by Cut4fun .