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| Gas Engines and Power Discuss all aspects of giant scale power systems |
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02-20-2008, 07:23 PM
| #1 (permalink) |
| Flyin' Low and Slow  Join Date: Oct 2007 Location: San Antonio, TX
Posts: 22
 |  DA 50
New DA 50 on a Aeroworks 260. DA states the RPM to be 6,300-7000. It only tachs at 4200 with a 23/8 prop. We have checked the gap and it is per factory. Fuel mixture is 50 to 1. Please help. Is this a normal RPM or is something wrong that we are over looking?
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02-20-2008, 07:28 PM
| #2 (permalink) |
| All I need is more talent    Join Date: Jan 2006 Location: Tauranga, New Zealand
Posts: 678
|  Re: DA 50
Have you checked the ign pick-up is plugged into the ignition with the correct polarity?
__________________ www.rcmodels.co.nz |
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02-20-2008, 07:42 PM
| #3 (permalink) |
| Bad-ass Super Contributer!  Join Date: Mar 2006 Location: Saint Louis
Posts: 435
| Re: DA 50
Did you try another tachometer to verify your rpm reading? (4,200 rpm's is way low) How many turns out are your high and low speed needles? You aren't breaking it in on Lawnboy ashless (mineral based) oil at 32:1 for 2 to 4 gallons and using a 22x8 prop? (Check the DA instruction manual) Have you verified that your throttle servo is opening the carb. all the way? Last edited by SnaprollJ ohn; 02-20-2008 at 07:48 PM. |
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02-20-2008, 07:56 PM
| #4 (permalink) |
| Does it always do that?  Join Date: Jan 2006 Location: Confused,FL Age: 44
Posts: 783
| Re: DA 50
You should be using a 22x8 prop on a new engine and use Lawnboy Ashless or Pennzoil for 2 stroke at 32:1 mixture until you have run at least 4 gallons thru it. Other than that, make sure choke is full open and throttle is reaching full open also. What ever you do, make sure you can get the RPM's up to at least 6500 for a good break-in
__________________ www.triplecreekrc.com www.qqaircraft.com www.desertaircraft.com Florida Freestyle Aerobatics Association  How'd I get down here?? |
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02-21-2008, 02:29 AM
| #6 (permalink) |
| All I need is more talent Join Date: Jan 2006 Location: Tauranga, New Zealand
Posts: 678
| Re: DA 50
Glad you got it sorted, Now you can go out and enjoy flying your 260!!!
__________________ www.rcmodels.co.nz |
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09-27-2008, 08:50 AM
| #7 (permalink) |
| Gettin' Lower! Join Date: Oct 2006 Location: barranquilla, colombia
Posts: 40
| Re: DA 50
hello people i have a question the think is i buy a new tbm silent beauty pitts muffler for my DA50 but i see the tubes of the pitts are to long i whant to know if i can cut and if that change something in the configuration waiting for reply thanks jonathan |
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