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Old 10-14-2012, 10:38 AM
jud149 jud149 is offline
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Echo Edger, PE-230 Problem

It will not accelerate although idles fine and doesn't stall out. Air and fuel filters are clean, exhaust port clean and spark screen has been removed. Spark plug has been replaced. I removed the fuel vent while running but no change in performance. I noticed the fuel bulb is full now but don't remember seeing this bulb full while running on my other equipment The carb is the non-adjustable type other for than idle. This problem occurred all at once. It was running fine upon last use and then after sitting for one week, the problem started immediately upon start up. Any ideas would be appreciated.
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Old 10-14-2012, 10:47 AM
MR-G MR-G is offline
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There is a secondary fuel filter (tiny screen) inside the carb...its smaller than the tip of a pencil eraser...try gently cleaning it with carb cleaner...while its apart clean jets as well...run a small wire thru all ports/jets (we use the wire from bread ties) it seems to fit all the ports...just gently poke and pull wire thru flow holes and spray with cleaner...DO NOT REMOVE THE SMALL FILTER SCREEN they are very fragile and will not be re used if removed....

Last edited by MR-G; 10-14-2012 at 10:52 AM.
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Old 10-14-2012, 11:13 AM
jud149 jud149 is offline
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Quote:
Originally Posted by MR-G View Post
There is a secondary fuel filter (tiny screen) inside the carb...its smaller than the tip of a pencil eraser...try gently cleaning it with carb cleaner...while its apart clean jets as well...run a small wire thru all ports/jets (we use the wire from bread ties) it seems to fit all the ports...just gently poke and pull wire thru flow holes and spray with cleaner...DO NOT REMOVE THE SMALL FILTER SCREEN they are very fragile and will not be re used if removed....
Thanks. Anything else I can check before ordering a kit and rebuilding the carb?
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Old 10-14-2012, 11:29 AM
MR-G MR-G is offline
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I would try a good cleaning as said before a rebuild...just be carful with the diaphram and make sure all goes back correctly...wd-40 will also help keep diaphram/seals ect. from dry rotting or stiffening which is why most carbs need a rebuild...
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Old 10-14-2012, 02:07 PM
jud149 jud149 is offline
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Thanks MR-G!
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Old 10-15-2012, 02:21 PM
jud149 jud149 is offline
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Well, I cleaned the carb and noticed there was some sand residue when applying carb cleaner and though perhaps that was the problem. I also replaced all fuel lines, fuel filter, and fuel vent as well as replaced the spark plug as it was time to do so. Unfortunately, the no acceleration problem is still there. Any other ideas?
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  #7  
Old 10-19-2012, 10:45 AM
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jkilov jkilov is offline
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A strange problem for an RB, these rotary valve carbs usually have a single jet which either works or doesn't.

Sounds like low pressure in the metering circuit, either an internal leak or something plugged.
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Old 10-25-2012, 09:40 AM
jud149 jud149 is offline
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The new jet didn't solve the problem. Just ordered a new carb, RB K75, which can be used in lieu of the original RB K66B non adjustable jet per Zama. This new carb is adjustable.
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Old 10-30-2012, 11:16 AM
jud149 jud149 is offline
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Well, I just installed my new carb and unbelievably the original problem of no acceleration from idle is still there. This is after installing a new plug, fuels lines and fuel filter. The exhaust is clean and I even run it with the muffler off with no change in performance. Any ideas would be appreciated.
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  #10  
Old 10-30-2012, 11:03 PM
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ed2hess ed2hess is online now
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Quote:
Originally Posted by jud149 View Post
Well, I just installed my new carb and unbelievably the original problem of no acceleration from idle is still there. This is after installing a new plug, fuels lines and fuel filter. The exhaust is clean and I even run it with the muffler off with no change in performance. Any ideas would be appreciated.
I would try to check to see if both crank seals are in place. Is this unit very old? By the way did you try adjusting that new carb I would run a new fuel line because it sounds like not getting enough fuel. If this is a high use unit I have some other things to check.
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