gasgas249uk Posted April 23, 2016 Report Share Posted April 23, 2016 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. Quote Link to comment Share on other sites More sharing options...
jon v8 Posted April 23, 2016 Report Share Posted April 23, 2016 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... 1 Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted April 23, 2016 Author Report Share Posted April 23, 2016 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 ?. Quote Link to comment Share on other sites More sharing options...
heffergm Posted April 23, 2016 Report Share Posted April 23, 2016 How'd you clean the carb? Maybe soak all the jets in a parts cleaner wash tank overnight... Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted April 23, 2016 Author Report Share Posted April 23, 2016 (edited) 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, 2016 by gasgas249uk Quote Link to comment Share on other sites More sharing options...
zippy Posted April 24, 2016 Report Share Posted April 24, 2016 Possible pin hole in the diaphragm Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted April 24, 2016 Author Report Share Posted April 24, 2016 Yes could be Zippy. Today ill carefully peel of the diaphragm and clean the jet. Maybe its partially blocked ? Quote Link to comment Share on other sites More sharing options...
pa. Posted April 28, 2016 Report Share Posted April 28, 2016 Possible pin hole in the diaphragm As this is a possibility do not do any gardening or next Autumn new growths may appear. 3 Quote Link to comment Share on other sites More sharing options...
gasgas249uk Posted April 28, 2016 Author Report Share Posted April 28, 2016 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 1 Quote Link to comment Share on other sites More sharing options...
copemech Posted May 1, 2016 Report Share Posted May 1, 2016 You are lucky! Those carby things are like a Bumble Bee, they are not supposed to fly but they do, some how? Quote Link to comment Share on other sites More sharing options...
crazybond700 Posted May 3, 2016 Report Share Posted May 3, 2016 Is it with a system where you need to press a small bowl 10 times before starting? Quote Link to comment Share on other sites More sharing options...
pa. Posted May 3, 2016 Report Share Posted May 3, 2016 Is it with a system where you need to press a small bowl 10 times before starting? Some call it Foreplay. 2 Quote Link to comment Share on other sites More sharing options...
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