• RECEIVE THE GIFTS MEMBERS SHARE WITH YOU HERE...THEN...CREATE SOMETHING TO ENCHANT OTHERS THAT YOU WANT TO SHARE

    You know what we all love...

    When you enchant people, you fill them with delight and yourself in return. Have Fun!!!

  • 0
Sign in to follow this  
lawdog

High-Low Idle carbs

Question

lawdog

You know the ones, they are on these little engines like weed eaters and such, they have a low idle screw and a high idle screw. How do you set these? I've never really messed with them.

I have one that won't idle, but if I put the choke on a little then it will keep running. When I go back to full throttle it will run OK but with the choke slightly on like that it gets pretty rich. Where should I start on adjustments????

thanks.

Share this post


Link to post
Share on other sites

3 answers to this question

Recommended Posts

  • 0
Scott K

Most likely the carb is dirty, and will need to be cleaned.

Share this post


Link to post
Share on other sites
  • 0
Surface Tension

Having to choke to run means your running lean.

Start with the low speed adjustment. If you like turn the screw in till it just makes contact, NOT TIGHT. As you do this count the turns. Now turn counterclockwise(out) back to where you started. Start up the trimmer and and make small 1/8th turn and slow adjustments counterclockwise. Do this till the trimmer will idle without choke.

Do the same steps to get your starting point for the High speed adjustment.

Start the trimmer, turn the screw out with small and slow adjustments with full throttle while under load(trimmer string should be enough) till the trimmer runs without choke. Go back and fine tune the idle by turning in till it just starts to idle at a high RPM then back out a hair.

Now go back and fine tune the High speed. Turn in while at full throtle till the RPMs increase, then back it back out a hair.

Now if you don't notice any change while adjusting idle or high speed its time to clean the carb.

Share this post


Link to post
Share on other sites
  • 0
Macgyver55

(probably stating the obvious) There are two prerequisites I would add to Franks otherwise proper method of fine tuning a small two stroke.....

Before starting to make adjustments, make sure the air cleaner is clean and the motor is fully warmed up. Most of these small two strokes are pretty sensitive to small adjustments and temperature change.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  



  • Your Responses - Share & Have Fun :)

    • Borch
      Sounds like a blast!  My time has shifted to turkey hynting prep.  So it looks like I'm done despite good ice conditions.  But I'm a bit jealous of you all.
    • smurfy
      One thing I'd like to add, they live about 2 miles north of remer on hwy 6.
    • Brandon Klatt
      Went up to Knife lake today to see if i could find some slab crappies. After drilling countless holes and only 1 crappie to show for it was thinking about packing it in. Then i notice a mark 1ft under the ice, bam a nice 12in slab. fished 2:45-8pm, bite was good 6:30-8.  Caught a good amount of crappies, key was to be 6-8ft of water and most fish were 1-4ft down. All crappies were released, with how hard this lake gets its nice to see there's still slabs in there and wish the DNR would put a 5 crappie limit on the lake, even down to 3 would be great. 
    • leech~~
      I think Duff has been hacked? He's replying to posts over a year old now?
    • smurfy
      You might be fighting for room with all the geese ducks and swans!!
    • smurfy
      Gobsmacked?!!
    • smurfy
      Check out weezie outdoors. They guide bear, and all kind of things. I know they hunt Winnie for ducks. They also supply a dog if needed. They also do fish guiding. They have a website also.
    • Cliff Wagenbach
      We always called them wing-dings! I also learned that trick on LOW. Very tasty!! Cliff
    • phishslayer
      Anyone know how the lakes are doing in the Madison Lake area? Still fishable? Ice pulling away from shore yet?
    • biff
      The big storm last weekend blew a lot of ice into shore around the park point area...the south pier was closed again and there is ice piled up around the pier...not good for the coho fishing off the pier and not good for the smelting off the point. At least the weather is going to be in the 50's for awhile it looks like.