Author Topic: Another 4 stroke trimmer.  (Read 335 times)

0 Members and 0 Guests are viewing this topic.

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 3933
  • Karma: 214
  • Location: Carpenter, Wyoming
Another 4 stroke trimmer.
« on: May 14, 2016, 08:39:01 pm »
So I have another Troy built 4 stroke trimmer and yes it is another freeby.   
The carb on this is Walbro WYL 187.   
So instead of rebuilding the carb I decided to try one of those Chinese knock offs. a Ruixing.

The carb was very cheap as in not much money.   I put it on and the trimmer starts up real good and idles good and run at half throttle real good.
Go to full throttle and it dies.   I try adjusting it but no good.

So I take the carb apart and find the main jet and I have these very small drills that I used for watch making.   I drill the main jet out and put it all
back together.   Bingo got wide open throttle now.    Trimmer idles good and accelerates good.    Just passing along some info.
PP 505, 475, 445.

Social Buttons

Like Like x 2 View List

Offline 660magnum

  • Global Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 6366
  • Karma: 227
  • For The Love Of Chainsaws
  • Location: NCO
Re: Another 4 stroke trimmer.
« Reply #1 on: May 14, 2016, 09:08:44 pm »
GTK
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 dannyupsolate

  • Piped Saw
  • *****
  • Posts: 327
  • Karma: 28
Re: Another 4 stroke trimmer.
« Reply #2 on: May 15, 2016, 01:02:44 pm »
good to hear someone  is smart enough to get one to run. please come to alabama and fix my six ;D
Like Like x 1 View List

Offline Cut4fun .

  • Administrator
  • Nitro Hotsaw
  • *******
  • Posts: 17716
  • Karma: 333
  • OHIO REDNECK Saw Repair Getter Done
    • Redneck Chainsaw Repair
Re: Another 4 stroke trimmer.
« Reply #3 on: May 15, 2016, 01:41:14 pm »
Nice fix Roger. 

Still only 4 stroke trimmer I had come in was a guy running 2 stroke mix in it.  He gave it to me free.  Changed plug, flushed it good and gave his trimmer back.
Told him what he was doing to make it not run.
REDNECK Saw Repair Getter Done
Like Like x 1 View List

Offline dannyupsolate

  • Piped Saw
  • *****
  • Posts: 327
  • Karma: 28
Re: Another 4 stroke trimmer.
« Reply #4 on: May 31, 2016, 06:19:19 pm »
anyone rebuilt the wyl carburetor did it turn out ok.

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 3933
  • Karma: 214
  • Location: Carpenter, Wyoming
Re: Another 4 stroke trimmer.
« Reply #5 on: June 01, 2016, 05:39:02 am »
anyone rebuilt the wyl carburetor did it turn out ok.

I have rebuilt a few of the WYL series Walbro carbs with no problems.   The diaphragms get stiff in them just like any other carb.
PP 505, 475, 445.

Offline dannyupsolate

  • Piped Saw
  • *****
  • Posts: 327
  • Karma: 28
Re: Another 4 stroke trimmer.
« Reply #6 on: June 01, 2016, 05:23:11 pm »
was wrong thought wyl and wyla used same kit. k1wyla is kit for wyla. cheapest i found is 10 bucks shipped for 1 maybe they will combine shipping for 6. good to hear they rebuild ok.

Online 3000 FPS

  • Moderator
  • Nitro Hotsaw
  • *******
  • Posts: 3933
  • Karma: 214
  • Location: Carpenter, Wyoming
Re: Another 4 stroke trimmer.
« Reply #7 on: June 02, 2016, 02:13:44 am »
When rebuilding those carbs just be careful with the main jet where the plastic needle comes down into it.    That little brass jet has a tiny o-ring on it that is used to seal it from leaking fuel.    Some kits come with that o-ring so that you can replace it.   Just make sure the jet is seated all the way down if you take it out and replace that o-ring and make sure the hole in it is clean.
PP 505, 475, 445.

Offline dannyupsolate

  • Piped Saw
  • *****
  • Posts: 327
  • Karma: 28
Re: Another 4 stroke trimmer.
« Reply #8 on: June 02, 2016, 06:35:09 pm »
ordered 6 k1wyla  walbro kits from mowers4u on ebay 28 bucks shipping and all. These are not available aftermarket. fits some 4 cycle trimmers and mini tillers mtd/ryobi family.
Like Like x 1 View List

Offline Chris-PA

  • 6 cube
  • ****
  • Posts: 203
  • Karma: 28
Re: Another 4 stroke trimmer.
« Reply #9 on: June 03, 2016, 09:10:04 pm »
How are these Troy Bilt 4-strokes?  They are rather appealing to me and I might go that way if I get another trimmer.

 

Related Topics

  Subject / Started by Replies Last post
0 Replies
382 Views
Last post April 13, 2012, 04:19:50 pm
by Cut4fun .
36 Replies
1121 Views
Last post May 23, 2015, 04:56:10 pm
by 660magnum
5 Replies
445 Views
Last post June 29, 2013, 02:03:10 pm
by RoyM
14 Replies
846 Views
Last post October 19, 2013, 08:27:09 pm
by Old Iron Logging
1 Replies
243 Views
Last post December 30, 2013, 06:55:39 am
by 660magnum
16 Replies
347 Views
Last post August 20, 2014, 08:56:19 am
by Al Smith
10 Replies
247 Views
Last post March 01, 2016, 08:03:59 am
by dutchsawdoctor
6 Replies
147 Views
Last post August 05, 2015, 11:17:31 pm
by 3000 FPS
0 Replies
172 Views
Last post October 12, 2015, 03:32:41 pm
by dannyupsolate
5 Replies
176 Views
Last post December 07, 2015, 02:38:42 pm
by dannyupsolate