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Rebuilt trimmer won't start!

#1

seagiant

seagiant

Hi,
I came into 2 Echo string trimmers and decided to do a basic rebuild. The first was a SRM-140 curved pole trimmer. Rebuilt carb with kit. New fuel line w/filter. New spark plug. Trimmer started right up after rebuild tuned it and it is good to go.

Next trimmer is a SRM-200 DA straight pole model. Did the same thing with it on the rebuild and can not get it to even fire! I have good spark at plug,carb is getting gas,muffler is clean. Checked compression and it is at 65 PSI but so is the other one? I've looked at the piston and it looks good? I have run out of things to try? Was wondering if anyone has any ideas? Thanks!


#2

Fish

Fish

seagiant said:
Hi,
I came into 2 Echo string trimmers and decided to do a basic rebuild. The first was a SRM-140 curved pole trimmer. Rebuilt carb with kit. New fuel line w/filter. New spark plug. Trimmer started right up after rebuild tuned it and it is good to go.

Next trimmer is a SRM-200 DA straight pole model. Did the same thing with it on the rebuild and can not get it to even fire! I have good spark at plug,carb is getting gas,muffler is clean. Checked compression and it is at 65 PSI but so is the other one? I've looked at the piston and it looks good? I have run out of things to try? Was wondering if anyone has any ideas? Thanks!
Click to expand...

Drain the tank on the one that won't start, push the primer bulb 10 times, drain the tank again, then try to start like you normally would.

You may have to pull 30 times or so, but try to start it like it should. If it finally starts and runs a bit, then dies, then it was flooded.


#3

Fish

Fish

Fish said:
Drain the tank on the one that won't start, push the primer bulb 10 times, drain the tank again, then try to start like you normally would.

You may have to pull 30 times or so, but try to start it like it should. If it finally starts and runs a bit, then dies, then it was flooded.
Click to expand...

If not, then after all of that, remove the air filter/cover, and squirt some new fuel mix down the carb, and pull a bunch of times, and tell us
what happens.

Don't refill the tank until we figure it out!!!!


#4

EngineMan

EngineMan

Is the spark plug wet after you have pulled it so many times..?


#5

seagiant

seagiant

Fish said:
If not, then after all of that, remove the air filter/cover, and squirt some new fuel mix down the carb, and pull a bunch of times, and tell us
what happens.

Don't refill the tank until we figure it out!!!!
Click to expand...

Hi Fish,
DARN! I dumped the gas and pulled about 50 TIMES and it started and ran!!! Now,why is it flooding? Oh yea,THANKS!


#6

seagiant

seagiant

seagiant said:
Hi Fish,
DARN! I dumped the gas and pulled about 50 TIMES and it started and ran!!! Now,why is it flooding? Oh yea,THANKS!
Click to expand...

Hi,
Yes the plug is wet! I put more fuel in and it ran for a couple of minutes then (Ithink) flooded it's self again. I think the carb is delivering to much gas? It's just been rebuilt and I took it apart again and everything looks good. Any ideas? Thanks! Oh yes this carb, Walbro WA-59 has no primer bulb!


#7

Fish

Fish

EngineMan said:
Is the spark plug wet after you have pulled it so many times..?
Click to expand...

yes, the one I told him to totally remove the fuel.....


#8

Fish

Fish

You need to go through the carb and put in a new kit with a new inlet needle.....


#9

seagiant

seagiant

Fish said:
You need to go through the carb and put in a new kit with a new inlet needle.....
Click to expand...

Hi Fish,
I just did that (post#6) but will pull it again and concentrate on the needle as I believe it is passing to much fuel also! Thanks for the help. I had no history on this trimmer before the rebuild! Thanks again!


#10

seagiant

seagiant

Hi,
Ok! I got it! Here's what the problem was,to sort of help the next guy. When I opened up the carb side that holds the spring loaded needle valve inside I checked everything (for the third time!) and everything looked good as before. Then I noticed the gasket and diaghram, the diaghram was against the body of the carb and the gasket was against the cover. I thought maybe that is to close to the needle valve lever so I switched them and put the gasket next to the carb body. Reinstalled and the trimmer started on the FIRST PULL!! Unreal!

Thanks Fish I learned something today!


#11

EngineMan

EngineMan

Good to know you have fix it, was coming back in with service manual for you, but you don't need it now...!:thumbsup:


#12

impalass

impalass

seagiant said:
Hi,
Ok! I got it! Here's what the problem was,to sort of help the next guy. When I opened up the carb side that holds the spring loaded needle valve inside I checked everything (for the third time!) and everything looked good as before. Then I noticed the gasket and diaghram, the diaghram was against the body of the carb and the gasket was against the cover. I thought maybe that is to close to the needle valve lever so I switched them and put the gasket next to the carb body. Reinstalled and the trimmer started on the FIRST PULL!! Unreal!

Thanks Fish I learned something today!
Click to expand...
Nice to learn something but when you are taking something apart that you have not worked on take a picture.


#13

seagiant

seagiant

Hi,
Well, I should of looked more carefully at the schematic for this carb! What was good though was that I thought it through and sort of figured it out! I only have 65 PSI on compression but both of the trimmers run pretty good now!


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