Echo Zama Carburetor Hidden Hi Jet Screw




What do you think about this video?

Mike Hambuchen: mine is a SRM 230. I got the carb apart to see the brass insert, but no plastic and no screw. So i took a 5/32 drill bit and started gently drilling that brass insert. Soon after I drilled below the carb block, a piece of plastic and the remains of the brass came out exposing the jet screw. It was not plugged up so i set the screw back 1/2 turn after hitting bottom, maybe should have only gone 1/4. In anycase it now runs, only a little bogged down at full throttle, running at full speed before I get there (that is why I thought maybe a 1/4 turn would have been enough). THANKS!

David Chambers: Thax, My problem they are making them harder to get too. Not just Echo. If I can't adjust the carb then I don't need it!

Tana Parks: Your teaching people wrong

Tana Parks: The plastic you drilled out is called a limiter cap which is extracted with a 2.5 mm limiter cap tool thats left hand threaded into it. You really shouldnt be telling people to drill those out due to risk of damage and as a 2016 licenced tech for Echo and Shindaiwa i can tell you if you try any adjustments to carb with knowing proper specs it is possible to lean out carb and make your engine fail and if under warranty you will void it. My advice, speak with your local shop that is a dealer about simple adjustments. also the adjustment screws are not hidden and i dont know who told you that zama carburetors are best replaced i always pressure test and vac test them if they pass then why replace. But one thing you missed on here, if carburetor starts to bog or starting issues or even runs on choke. 99 percent of the time most carburetor failures are due to either poor maintanice or stale fuel. if adjustment are made at home always remember before adjusting expect air filter for possible restrictions like dirt, expect fuel line for small holes or weak lines a good line should collapse by squezing it down and return no problem is soft or weak, its time for replacment. fuel filter is best replaced every 3 months expect to make sure not plugged up. Remember i am trained and speaking to you like my teacher spoke to me.

Tana Parks: The plastic you drilled out is called a limiter cap which is extracted with a 2.5 mm limiter cap tool thats left hand threaded into it. You really shouldnt be telling people to drill those out due to risk of damage and as a 2016 licenced tech for Echo and Shindaiwa i can tell you if you try any adjustments to carb with knowing proper specs it is possible to lean out carb and make your engine fail and if under warranty you will void it. My advice, speak with your local shop that is a dealer about simple adjustments. also the adjustment screws are not hidden and i dont know who told you that zama carburetors are best replaced i always pressure test and vac test them if they pass then why replace. But one thing you missed on here, if carburetor starts to bog or starting issues or even runs on choke. 99 percent of the time most carburetor failures are due to either poor maintanice or stale fuel. if adjustment are made at home always remember before adjusting expect air filter for possible restrictions like dirt, expect fuel line for small holes or weak lines a good line should collapse by squezing it down and return no problem is soft or weak, its time for replacment. fuel filter is best replaced every 3 months expect to make sure not plugged up. Remember i am trained and speaking to you like my teacher spoke to me.

grasscutter88: Use a 7/64'' bit and slowly drill it and it should grab the plastic plug out. Just don't drill too far, you don't have to take apart anything on the carb like he's doing, but you need a small flat head screw driver for eye glasses.

Rick Reid: Thanks for the great video. Very helpful!

David Evans: Garbage bag ties work great, but I have a torch tip cleaner at my shop and several pcs of wire, also guitar strings too.

Adam Moulton: THANK YOU VERY MUCH.
I DID EXACTLY WHAT YOU SAID AND IT FIRE RIGHT UP.
YOU ARE THE MAN

patrick cordery: thanks I ended up just giving up and throwing it out

NewShockerGuy: Just so that we know, turning this screw counter clockwise just like a normal carb screw increases the fuel correct?  I just did this and turned it fully clockwise and made sure to count the rotations, via "stock settings" and it bogged down and almost died.  I figured this was EXTREMELY lean, but then backed it off back to where stock settings was plus another full turn counter clockwise.  I could not notice a sound difference in turning it out until it was almost fully out and it bogged down,  (Guessing this was too rich), unlike a chainsaw tune where you can noticeably hear the difference..Thanks,-Nigel

Mike Rue: It's called a needle not a jet. To remove the plug try a #4 wood screw . Also you can heat a prick with a propane torch and melt a hole in the plastic then use the screw. Of course if you use a propane torch
be careful not to have any gas nearby.

503challenger: My ES-320 blower was bogging down at the high side..........this video is PUUURFect, Thanks so much for the Vid.

Renee Pillow: So the wire I used off a old wire brush, just broke off inside and I can't pull it out with tweezers. Is there a way I can fix this or will I have to order another screw??

Ricky Willis: Awesome informative video. My weed-eater was about 3 yeras old and wouldent open up fully. Without your video I,d have to have shot it or sent it to the shop! Your fix is a life saver...Many thanks........Ricky

Joe Smith: Hells bells, thanks!

Peter Langes: Well done, well done indeed!  Thanks for taking the time to do this , I am sure you have saved a  lot of folks some cash.

twin40soffury: Thanks for the tip. My Echo SRM 210 is about 10 years old and has been fairly trouble free. This spring the only way to keep it running was to have the choke half on. I must of torn the carburetor apart 3 to 4 times and could find nothing wrong. Found your video and fixed it in about 15 minutes. 

demoking1422: Gonna check it out Thanks

NonyaBusiness!: Awesome! This video solved my problem and my trimmer is working. Starting was a little rough. I couldn't (really just too lazy to look for) find a wire thin enough to get in the holes, so I just blew and blew until I could see the holes. Then I blew some more for good measure.

On the third pull it started, but then quickly stopped. Eventually on one pull it ran smooth. Annoying that this trimmer has been this finicky, but I got it working.

One note: I didn't remove the fuel line from the carburetor and just held it up to keep the fuel from spilling. I guess I could have clamped the line with a mini vice grip. 

Rating:
Echo Zama Carburetor hidden Hi jet screw 5 out of 5

Shared by Others

Echo Zama Carburetor hidden Hi jet screw
Echo Zama Carburetor hidden Hi jet screw
ECHO SRM 225 HIDDEN HIGH JET
ECHO SRM 225 HIDDEN HIGH JET
HOW TO RETUNE YOUR CARB ON ECHO TRIMMERS
HOW TO RETUNE YOUR CARB ON ECHO TRIMMERS
How To Rebuild A Zama Carburetor On a Echo Blower- RB-125
How To Rebuild A Zama Carburetor On a Echo Blower- RB-125
Zama carb problem diagnosis and solution. Echo SRM 210 Weedeater
Zama carb problem diagnosis and solution. Echo SRM 210 Weedeater

Featured Video

How to Make Money Online


Echo Zama Carburetor hidden Hi jet screw