SOURCE: ryobi 31cc lawn trimmer carb adjustment
As with all 2 strokes if you have compression and a reasonable spark, you only need fresh fuel with correct oil ratio) and they must go !(as long as you haven't fiddled first and all gaskets are sealing) I start mine by(1) pumping the primer till it is firm,(2) full choke,(3) pull till it kicks ONCE,(4) half choke, pull till it runs,allow to warm up and(5) switch to run (you may need to apply a bit of throttle while pulling as in (4)(or give it a few more pumps if it dies) If all is ok, check that when properly warmed up there is a smooth transition from idle to full revs, if it hesitates it may need the LOW SPEED mixture leaning (clockwise) SLIGHTLY.If it dies the LOW SPEED mixture may need richening(anti-clockwise)(adjust 1/8 turn at a time) Make sure that motor is just peaking at full revs and is on the RICH side of peaking (HIGH SPEED mixture)(this will avoid seizing it Adjust both till it revs cleanly and is JUST rich at full, and idleing nicely and it should start without too much trouble.(If you have fiddled and are lost,-about 2 1/2 turns out from closed on both needles should get you started)
SOURCE: Homelite gas trimmer will not run without half choke and throttle
You need to disassemble the carb. and spray with carb. cleaner. If you need tips on how to do this, just let me know. You may need a new carb. kit as well, but we won't know that until you first perform the first step, or if the carb. parts are more than 3 years old. If they are, then go ahead and buy the carb. kit and replace the parts.
Jim
SOURCE: Toro String trimmer will not start; good spark; getting gas
Hi this would be the only possible solution , The flywheel may have come loose causing the keyway to sheer off this is a common problem the only way to tell is to remove the flywheel and have a look.
SOURCE: Troy-bilt TBP6040 4-cycle stalls out after about 10 minutes.
I have the same model from Troy-Bilt. I have only had it about 4 or 5 months. Mine has started using a LOT of oil. I noticed a significant increase in temperature compared to my old Husqvarna 2 cycle. Mine does not completely stall, but it does start to sputter when it gets hot. I am going to take mine back to Lowe's where I bought it. So far I am VERY unhappy with the TBP6040.
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