April 23, 201610 yr I'm not member of any gardening forums so here goes. I have a Ryobi petrol Strimmer which you can attach mini chain saws to etc. I laid it up in autumn with fuel in tank. Now it starts but only runs on choke. When choke comes off out dies like fuel starvation. There are no obvious leaks , petrol looks and smells good.Both pipes running to and from the tank look good. Was working perfectly before laid up. I took the carb apart and cleaned it and resealed it with gasket sealer, but didn't pull the diaphragm off. It still runs the same. It's probably a common problem. Have you experience with this and any ideas on what is likely to be causing this problem ? Any advice is appreciated.
April 23, 201610 yr Will probably need a carb kit before it will run properly.My Mums strimmer wouldn't even fire on last years fuel. My strimmer,(Which never starts well) fired up after 4 pulls and my old Briggs and Wreckem 3.5hp mower fired up first pull when dragged out of the workshop last week after being left all winter with last years fuel. The difference is I run them on Aspen - all of them,no problems - at all...
April 23, 201610 yr Author Hmm. Thanks. I've not seen carb kits for this model. I'm wondering what is causing the fault . Ie what if blocked or broken ?.
April 23, 201610 yr How'd you clean the carb? Maybe soak all the jets in a parts cleaner wash tank overnight...
April 23, 201610 yr Author So I'm thinking ... as it only runs on choke , maybe the normal fuel circuit is partially blocked . Maybe this is where the problem lies and the fuel jet is partially blocked. I'll have to peel off the diaphragm to clean it..gulp Edited April 23, 201610 yr by gasgas249uk
April 24, 201610 yr Author Yes could be Zippy. Today ill carefully peel of the diaphragm and clean the jet. Maybe its partially blocked ?
April 28, 201610 yr Possible pin hole in the diaphragm As this is a possibility do not do any gardening or next Autumn new growths may appear.
April 28, 201610 yr Author I did peel the diaphragm off and there was muck by the tiny float valve . A quick clean and it's now fine. Thanks for your help
May 1, 201610 yr You are lucky! Those carby things are like a Bumble Bee, they are not supposed to fly but they do, some how?
May 3, 201610 yr Is it with a system where you need to press a small bowl 10 times before starting? Some call it Foreplay.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.