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motor runs like crap - 5/28/2012 11:01 PM   
handyman


 

Posts: 359
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From: tomsriver, NJ, USA
Status: offline 		motor runs great with plane level........bring nose up..motor craps out,,,,,,,,,tank is center of carb,,,,,,,,,,no air bulbs,,,,,,,,,,new fuel,,,,,,,,,,,new glow plug..........3 prayers to the motor god..............what now

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RE: motor runs like crap - 5/28/2012 11:12 PM   
jetmech05


 

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From: Jacksonville, FL, USA
Status: offline 		Are you sure your clunk is in the back of your tank? sometimes it can get stuck up front. other than that it sounds like a tunning issue

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RE: motor runs like crap - 5/28/2012 11:15 PM   
handyman


 

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From: tomsriver, NJ, USA
Status: offline 		yeas the clunk is in the back and it will fall if held upside down,,,,,,,,,as for tunning where or what?..........as i said runs great level

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RE: motor runs like crap - 5/28/2012 11:37 PM   
blvdbuzzard



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From: high deserts, CA, USA
Status: offline 		How far back is the tank? Are you using muffler pressure? Is this a Pitts muffler? Small, medium or large fuel tubing? If you drop the nose, does it go rich?

Buzz.

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RE: motor runs like crap - 5/29/2012 12:35 AM   
Canukk


 

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From: Bedford, TX, USA
Status: offline 		Sounds like it is too lean.

Have you tried to richen it up a bit and see what happens?

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RE: motor runs like crap - 5/29/2012 1:59 AM   
tschuy


 

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From: Seattle, WA, USA
Status: offline 		 What size fuel tubing and are you using muffler pressure? Should be using medium size tubing and pretty direct connections.  If you are using a three line set, be sure to plug the overflow/vent line or muffler pressure will do no good.

Just my 2 cents worth..



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RE: motor runs like crap - 5/29/2012 3:45 AM   
jester_s1


 

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From: Fort Worth, TX, USA
Status: offline 		Define what "runs great" means. Does that mean you are at peak RPM at a level attitude? If so, you are too lean to allow for the drop in fuel pressure in a vertical line or the unloading that happens in flight. That's of course assuming that you don't have a tank issue as others have mentioned.

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RE: motor runs like crap - 5/29/2012 3:52 AM   
nitro wing


 

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From: surrey, BC, CANADA
Status: online 		turn 1/4 left to richen

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RE: motor runs like crap - 5/29/2012 4:56 AM   
JohnBuckner



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From: Kingman, AZ, USA
Status: offline 		Do you suppose it might help if you posted exactly what kind of engine you have?

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