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Old 02-18-2008 | 09:53 PM
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Cyclic Hardover
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From: New Mexico,
Default RE: Engine trouble

I haven't been on this bandwagon for a while but anybody can tune an engine perfectly but even many experienced rc'r have no clue. its too easy. If you get it right the first time, you don't have to mess with the low end at all in any given season.

The trick is all inthe low end needle. To start with, just tune it as best you can, then lets check to see if your adjustments had any effect. Since its on a dazzler, your engine should be exposed which makes this easy.

While the engine is at an idle, carefully remove or pinch off the fuel line and wait for the engine to quit. Listen to the rpms as this happens. If the rpms increase as the engine quits, low end is too rich. if the rpms just go down and quit, low end to lean. Adjust as necessary. I keep mine at a slight increase.

Now each time you make an adjustment to the low end, re tune the high end. This may take a couple tanks to get it right but then thats it, no more except for the high end each day.

I have not had a deadstick engine in so many years due to tuning. There is a reason for getting it perfect and that is if you do have an engine problem, tuning is the last thing you want to be fooling with. Look for other problems.

I have engine problems as much as the next guy but the issues have nothing to do with tuning.. I may have a plug go bad or and airleak somewhere. all the usually things which i usually find before it comes down to tuning.