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Old 03-17-2009, 09:31 PM   #1
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Default need advice

i have a used revo 2.5 it runs at idel or a little above idel but spits a mist of fuel out of the carb when engine is runnining and only runs for 2-4 minutes i can pull the muffler pipe off and it has a build up of fuel in it enought to drain some out. i even tried to cut the fuel flow adjustment way down like just enough to run engine and got the low air speed set at best to run a little pass idel. is it the carb or engine the problem.??
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Old 03-17-2009, 09:40 PM   #2
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i have a used revo 2.5 it runs at idel or a little above idel but spits a mist of fuel out of the carb when engine is runnining and only runs for 2-4 minutes i can pull the muffler pipe off and it has a build up of fuel in it enought to drain some out. i even tried to cut the fuel flow adjustment way down like just enough to run engine and got the low air speed set at best to run a little pass idel. is it the carb or engine the problem.??
This shouldn't be a problem with your engine or carb it is just out of tune. Lean the low speed needle.
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Old 03-17-2009, 10:00 PM   #3
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search up the factory needle settings, reset and tune from there.
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Old 03-17-2009, 10:36 PM   #4
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Default need advise

i've done that,, it just seems its getting too much fuel,,, low screw even with scew houseing and high speed 4-turns out,,thanks for your help
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Old 03-18-2009, 03:43 AM   #5
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I know this sounds weard but check the pipe real well. Could be clogged or bent at the wrong spot or leaking. Had a frends one that was cracked at the nipple for the tank line. JB Weld and rocks now.
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Old 03-18-2009, 04:24 AM   #6
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i've done that,, it just seems its getting too much fuel,,, low screw even with scew houseing and high speed 4-turns out,,thanks for your help
4 turns sounds like too much. Turn it 3 turns from slightly seated. I would start at 2- 2.5 turns out for the idle mixture. How much compression does it have? Can you feel a definate resistance when it come to the top of the stroke?
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