DLE 30 Problem
12-10-2012 | 12:01 PM
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From: Naples,
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DLE 30 Problem
My DLE 30 engine surges all the time. I have replaced the carb and I also checked to see of it was a radio problem and it is not.
The engine will not hold idle, it will move up 400 to 600 rpms and then back to the original setting and it surges at full power as well. I have resent the carb needles and this doesn't help either. Has anyone run into a similar problem and come up with a resolution?
Thanks
The engine will not hold idle, it will move up 400 to 600 rpms and then back to the original setting and it surges at full power as well. I have resent the carb needles and this doesn't help either. Has anyone run into a similar problem and come up with a resolution?
Thanks
12-10-2012 | 02:49 PM
#5
RE: DLE 30 Problem
My friend DaleD had a similar problem with his DLE 30. He tried everything including carb cleaner, new diaphrams, repair kit, the works and nothing worked. Replaced the stock carb with a new Walbro and all was well again.
Karol
Karol
12-10-2012 | 03:38 PM
#8
RE: DLE 30 Problem
He replaced the stock carb with a Walbro WT759 which is discontinued and might be difficult to find, but a WT739 will do just as well.
A quote from Jody, "If one must have a Walbro there are many that will work well, all are 28-34/64" venturis, ones I've tried that work good are 739, 759, 645, and 805."
Karol
A quote from Jody, "If one must have a Walbro there are many that will work well, all are 28-34/64" venturis, ones I've tried that work good are 739, 759, 645, and 805."
Karol
12-10-2012 | 05:18 PM
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RE: DLE 30 Problem
Karol, thanks for the info on Walbro carbs. Dan, the first thing I checked was the throttle servo and it isn't the culprit. I will try a Walbro carb.
Thanks to all for your help, it was much appreciated.
Thanks to all for your help, it was much appreciated.
12-10-2012 | 11:55 PM
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RE: DLE 30 Problem
ORIGINAL: Tman
My DLE 30 engine surges all the time. I have replaced the carb and I also checked to see of it was a radio problem and it is not.
The engine will not hold idle, it will move up 400 to 600 rpms and then back to the original setting and it surges at full power as well. I have resent the carb needles and this doesn't help either. Has anyone run into a similar problem and come up with a resolution?
Thanks
My DLE 30 engine surges all the time. I have replaced the carb and I also checked to see of it was a radio problem and it is not.
The engine will not hold idle, it will move up 400 to 600 rpms and then back to the original setting and it surges at full power as well. I have resent the carb needles and this doesn't help either. Has anyone run into a similar problem and come up with a resolution?
Thanks
12-11-2012 | 04:04 AM
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RE: DLE 30 Problem
Checkist, good point about checking the timing. I haven't done a timing check before but know someone who has experience with timing issues.
Thanks
Thanks
12-11-2012 | 05:56 AM
#13
RE: DLE 30 Problem
ORIGINAL: All Day Dan
Tony, here's a ridiculous thought. Make sure that you throttle servo is good. A worn feedback pot will give you those symptoms. Dan.
Tony, here's a ridiculous thought. Make sure that you throttle servo is good. A worn feedback pot will give you those symptoms. Dan.
12-11-2012 | 07:39 AM
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RE: DLE 30 Problem
ORIGINAL: MetallicaJunkie
+1 ive had that happen to me.. it only would act up with the engine on....It was a headache diagnosing that one
ORIGINAL: All Day Dan
Tony, here's a ridiculous thought. Make sure that you throttle servo is good. A worn feedback pot will give you those symptoms. Dan.
Tony, here's a ridiculous thought. Make sure that you throttle servo is good. A worn feedback pot will give you those symptoms. Dan.
12-11-2012 | 08:05 AM
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RE: DLE 30 Problem
I really don't think it is a throttle servo problem. With the cowl off the servo and connection are clearly visible the servo arm did not move and just to be sure it wasn't the servo we held the servo arm so that it could not move and if it did we could feel it moving. It was the first thing we thought of when the engine acted up.
Thanks
Thanks
12-11-2012 | 08:16 AM
#16
RE: DLE 30 Problem
Reset the timing to 30 degress BTDC and retune . every new DLE 30 I have checked has had the timing set too high usualy above 35 deg and some as high as 45 deg BTDC , The high timing makes starting and tuning more difficult and also has caused surging. Also be sure you have a CM6 plug and not the chinese knock off plug that came with the engine.
12-11-2012 | 12:08 PM
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RE: DLE 30 Problem
I plan to work on checking the timing tomorrow and regarding the question about the reed block, I installed a new one last week.
Thanks for all your interest.
Thanks for all your interest.
