Echo SRM 210 won't start
#1
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Echo SRM 210 won't start
Hello all, need a little help with my Echo SRM 210. It's about 5 years old and at the end of last season it was getting a little hard to start. I chalked it up to it needing a carb service and just let it be. I got it out this year after it sitting for 2-3 months and found it leaking gas. It had soaked air filter and felt pretty sticky like most of the gas had evaporated and what was left was the 2 cycle oil.
I didn't even try to start it when I found it like that I just decided to start replacing stuff. I thought about a card rebuild but a carb rebuild kit was $11 and a new carb was about $40 so I just got a new carb. I checked the serial number and got a ZAMA RB-K75 carb. I also got a new spark plug and fuel line repower kit that had a new grommet, fuel line, fuel filter, etc. I put those all on today and it's still not starting.
At first I thought maybe I had flooded it by priming the new bulb too much so I let it sit for a few hours and tried it again and it still won't start. When I'm trying to start it I can smell a faint odor of fuel burning so I think it's getting a spark.
I was reading around for solutions and someone mentioned taking the spark plug out and putting in about 1/4 teaspoon of fuel down into the spark plug hole, putting the spark plug back and trying to start it. I guess to make sure it's not a fuel deliver problem. But that didn't do anything for me either.
So what's next? I haven't taken the exhaust apart. I was going to try that next to see if maybe there's just too much carbon buildup. But if there's something else I should be checking please let me know. Thanks in advance.
I didn't even try to start it when I found it like that I just decided to start replacing stuff. I thought about a card rebuild but a carb rebuild kit was $11 and a new carb was about $40 so I just got a new carb. I checked the serial number and got a ZAMA RB-K75 carb. I also got a new spark plug and fuel line repower kit that had a new grommet, fuel line, fuel filter, etc. I put those all on today and it's still not starting.
At first I thought maybe I had flooded it by priming the new bulb too much so I let it sit for a few hours and tried it again and it still won't start. When I'm trying to start it I can smell a faint odor of fuel burning so I think it's getting a spark.
I was reading around for solutions and someone mentioned taking the spark plug out and putting in about 1/4 teaspoon of fuel down into the spark plug hole, putting the spark plug back and trying to start it. I guess to make sure it's not a fuel deliver problem. But that didn't do anything for me either.
So what's next? I haven't taken the exhaust apart. I was going to try that next to see if maybe there's just too much carbon buildup. But if there's something else I should be checking please let me know. Thanks in advance.
#2
Most likely if the carb was leaking fuel out the filter, it has flooded the crankcase. Try starting it with the choke open and wide open throttle. It may take a few dozen pulls.
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Well the good news is that I got it started this morning. Before trying to start it I did take off the carb and clean the screen. There wasn't much build up but thought I'd mention it. Now I can start it and it'll idle fine but if I try to give it even half throttle it dies on me. Are there any adjustments on the carb itself that I can make? Or any other ideas?
#4
It may have adjustable mixture screws. If so, they are the two small screws side by side. The one closest to the air filter side of the carb is the high speed screw. Try backing it out 1/2 turn.