Author Topic: makita 6421 adjustment  (Read 539 times)

0 Members and 0 Guests are viewing this topic.

Offline dannyupsolate

  • Piped Saw
  • *****
  • Posts: 328
  • Karma: 28
Re: makita 6421 adjustment
« Reply #10 on: July 13, 2015, 12:52:53 am »
there may be mixture limiter caps on your carb they are  pollution control.  Many people find a way to defeat the mixture limiter caps to get the mixture rich enough for a long life saw .the rev limiter is electronic inside the coil. thanks for all your hard work on a great distro Thomas

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6437
  • Karma: 249
  • For The Love Of Chainsaws
  • Location: NCO
Re: makita 6421 adjustment
« Reply #11 on: July 13, 2015, 01:22:08 am »
Depending on what year they were made, some of these had the needle valve cavities filled with a metalized epoxy where you couldn't adjust the needles. You had to buy a new carb.

Most had tabs on the needle valves that could be removed.
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 . . .

 

Related Topics

  Subject / Started by Replies Last post
4 Replies
235 Views
Last post March 25, 2014, 05:11:36 pm
by Thomas Barber
20 Replies
1119 Views
Last post July 25, 2014, 07:54:45 pm
by fuzz1500
makita 6421

Started by pigpen60 « 1 2 » Dolmar Makita

15 Replies
414 Views
Last post September 11, 2014, 08:47:10 pm
by pigpen60
25 Replies
652 Views
Last post September 16, 2014, 11:31:39 am
by aclarke
4 Replies
247 Views
Last post September 18, 2014, 01:47:38 pm
by pigpen60
20 Replies
212 Views
Last post January 21, 2015, 03:45:59 pm
by Cut4fun .
7 Replies
181 Views
Last post February 10, 2015, 09:56:00 pm
by 660magnum
4 Replies
174 Views
Last post July 01, 2015, 08:23:40 am
by Nathaniel Vansickle
8 Replies
252 Views
Last post July 22, 2015, 08:20:52 pm
by Nathaniel Vansickle
7 Replies
190 Views
Last post January 31, 2018, 03:02:37 pm
by Cut4fun .