Re: Starting problem with a Ryobi rlt30ces petrol...
I have had the similar problem & spent a day stripping the unit down
(dismantled & re-assembled the carb, seemed OK fuel reaching & flooding the plug) I unscrewed the spark plug from the body, but left it connected to the lead and found that there was intermittent spark when pulling the cord. and tested it with a continuity meter - no signal/measurement. bought a new spark plug, meter reading showed signal/measurement, now starts every time. It may be that Ryobi has been installing rather cheap nasty plugs. So test the plug first by watching the spark when pulling cord, test with a meter, if no continuity, buy new plug....
Check also that little gauze air filter behind the roto choke is not blocked.
this solved it for me.
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full choke on , push petrol bubble 5 times then pull starter cord., with luck it will kick in to life after a 20/30 secs put on half choke , run again for 30 secs the no ckoke.
The main problem with Ryobi products is that they flood very very easly. So the more time you try and pump petrol into the carb the more it will flood . If that happenes then choke off and switch off and then just pull starter cord for about 30 secs then switch on and it could start if not prime it again as above good luck
The plug that I have in my 720r is a Champion RDJ7Y. Can I suggest that you pull the old plug out and look to see which one you have? Also when you buy the new replacement it should already be gapped for what you need.
I'm not sure about the carb. adjustment being removed. The newer carbs. only have one dial for adjustment, not the two screws like the "old school kind".It probably needs the carb. cleaned. Disassemble the carb. and clean with carb. cleaner. Use a Den Tek Brush, (used for cleaning teeth), to clean the small portals. Make sure the small screen in carb. is free of debis. The smallest of particals can cause your problem. Reassemble and try starting. If it still acts up, buy a carb. kit for trimmer and replace the needle valve, appropriate gaskets, diaphragm, and small screen. This should solve the problem.
Hi there, takes a bit of working out without a manual, but try this....take bottom half of trimmer line spool off, get piece of spool line approx 60 cm, long and thread through centre holes, ( bit fiddly but ) pull line through until you have equal length on both sides, dont try and wind it up onto the spool, just put ends of line through outside cover holes, then lock spool in place in other half. now simply wind the knob at the end and the line should retract into the spool., sounds complicated but really isnt, best regards and good luck, Philbee
Clean the carb wire gauze air filter behind the roto-choke knob. (undo the nut/washers & long bolt)
Deteremine if fuel is being fed to cylinder - Fully depress & prime the bulb about 7 times, turn to full choke. Pull start cord about 7 times. Remove spark plug see/smell fuel fumes/vapour present in cylinder
Determine if compression is weak - remove plug, put finger over plug port, pull start cord. Should be evident of resistance/pressure build up when cord is pulled.
Of course brand new plug!!! as above (I would try this first)
Hope this helps
please rate my comments - Thanks
You may have tried this already, Apologies if you have.
I have had the same problem & spent a day stripping the unit down
(dismantled & re-assembled the carb, seemed OK fuel reaching & flooding the plug) I unscrewed the spark plug from the body, but left it connected to the lead and found that there was intermittent spark when pulling the cord. and tested it with a continuity meter - no signal/measurement. bought a new spark plug, meter reading showed signal/measurement, now starts every time. It may be that Ryobi has been installing rather cheap nasty plugs. So test the plug first by watching the spark when pulling cord, test with a meter, if no continuity, buy new plug....this solved it for me
I have one of these and I have to admit they are a bit of a bug*er to start. Following the instructions though on the sheet for trying to start it eventually should kick it off and then you should be away. I start mine by alternating between no choke and the half choke with about half a dozen pulls each. generally pull with the throttle held but try a few with it off every now and again. If you get to 10 mins without success, put it down, have a drink and a rest and go back in 30 mins and try again. I wouldnt have thought a straight petrol mix would do it any harm though, if you had over mixed with oil then that could have been a differnt story.