At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have an old craftsman mini tiller. I replaced the neddle valve and diaphrams in the carb. Now it will start an run on half choke, but wont thottle all the way up, and dies when you move the choke to the run position. Any ideas whats wrong.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Fuel starvation, try slacken the filler cap to rule out a blocked tank vent, if no better replace the fuel filter in the tank, if no better you will have ti remove the carb and clean the filer under the pump diaphram.
It could be the gas you are running in it, if it contains ethenol use some stabil in this type of gas. Ethenol attracts moisture and will cause the carbs. on small engines to gum up and get a fouled. I run 100% gas in everything. It may cost a little extra now but it will save you alot more in the long run!
The carb sounds like a vacu-jet, very easy to rebuild. Remove it from the tank but be careful not to damage the siphon tube. Then make sure to check for foreign matter in the tank (big problem with this system), clean and flush it. The idle screw is easy, the other is set by going from idle to full throttle quickly and adjusting it just so it doesn't stumble
Clean out the small fuel inlet ports behind the diaphragm. Sounds like they are clogged up. Use the end of a paperclip to gently make sure the passages are open. Hope this helps. Good luck.
i'm having the same problem. cleaned carb but didn't help. I found that if I spray starting fluid on the gasket between the carb and the motor it speeds up. I'm going to try to find a new gasket, I can't tighten it anymore.
Good luck
it sounds like the the carb. either it needs cleaned of the float inside isnt working i would say to just get a new carb. if its possible concidering the age but try to clean the filter first im sure it has one sry but thats all i can think of
if it has set up for longer than a few moths it is most likely a fuel issue. many times the diaphram on the carb will dry out and shrink or crack allowing air to seep through leaning the motor to the point to where it will stall after a couple seconds. spray some wd40 aorunfd the ouside body of the carb and tank were the carb attaches if applicable and restart if it runs a little longer you will need to replace the diaphram which is inexpensive to fix usually under $10.00 refer to a manual or somtimes you can go online to youtube and there are many videos on the subject. hope this helps... good uck!
×