What Carb is this?
- Thread starter jr27236
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How about some other pics?
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Well, so we don't just guess a chitload of possibilities.
Like this one....
Like this one....
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bing is turning up some interesting stuff.....
brandonstc6
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Looks like an older echo or redmax trimmer carburetor
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jr27236
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Its actually off one of these cub cadet 4-stroke trimmers with the multi attachments. Bought it just to see how these were designed and of course needed to be repaired.
I personally would never want to own one to use because they are way too heavy. 2 stroke all day.
I personally would never want to own one to use because they are way too heavy. 2 stroke all day.
brandonstc6
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I gotcha. IMHO the only 4 stroke trimmers any good are stihl and maybe dolmar. I don't have any experience with dolmar. I had a honda 4 stroke trimmer I bought used. It ran for 10 minutes before it lost compression ( I think a valve problem). And I still prefer 2 stroke. I have an ancient echo trimmer and it always starts on the first pull. Same with redmax trimmers even the newer ones. I have a like new stihl fs110 and it's good and a stihl fs280 that has a ton of power and dolmar trimmer the same size and the stihl. I also have a stihl fs410 but it is total overkill.
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Lets see that FS410.
woodlandcammies
ArboristSite Operative
Same carb the Ryobi 4 strokes use. I picked a new one up on amazon for 10$ last week. The factory carbs are preset and non-adjustable. Aftermarket you can adjust both high and low needles with a small flathead. Its a Walbro WT229 I believe. Good little carb for trimmers. Alot better than the Zama's Ive been seeing lately.
jr27236
Addicted to ArboristSite
I actually ordered one off fleabay. Looks like it had a screw adjustment in the picture, see what they do when it arrives. But since its a 4 stroke i do t think ill be messing with them as a two stroke
woodlandcammies
ArboristSite Operative
4 strokes are easier to adjust, as long as your valves were set correctly. set the low until it idle's smooth, set the high until it runs like a scalded dog, then do a combined adjustment to get it where it revs smoothly with no lag. Run it hard for about a minute at WOT (dont let go of the WOT, just hit the off switch, if you let it idle it will change the plug reading a bit), then turn it off and check the plug like you do on an old car. Most of the adjustments are just like old car carb's.. if you want to be gucci, jerry rig a wideband O2 sensor to the exhaust hahahah.
woodlandcammies
ArboristSite Operative
Oh, the high speed adjustment needle is in the center of the pintle that the throttle cable attaches too. Low speed I think is the fat brass screw underneath the fuel line ports. I didnt have to adjust the low speed on mine, idled smooth as silk out of the box, but the high speed needed some love (couldnt run it without partial choke at first)
woodlandcammies
ArboristSite Operative
I will admit I prefer 2 stroke as well, but when using the brush blade the torque from the 4 stroke makes a world of difference. Dad's stihl 2 stroke with the same blade takes a lot more throttle to cut through brush than my old POS Ryobi 4 stroke, same goes for some of my attachments like my sickle bar pruner. For running the string trimmer head though and my leaf blower attachment head, the 2 strokes rpm's are still king.
Honda_man
ArboristSite Member
It's not a WT. Check for letters such as WYJ, WYK, etc. Almost 100% certain it will have 3 letters. WT look more like the walbro pics above.
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