vios8820 Active Member Messages 123 Jan 30, 2009 #1 what happen ? it happen both of my F4.6 engine ? it run nicely ~~ but can't keep idle tooo long time if not tooo many fuel goes to the cab.. shall i lean out the Low speed needle ? thx
what happen ? it happen both of my F4.6 engine ? it run nicely ~~ but can't keep idle tooo long time if not tooo many fuel goes to the cab.. shall i lean out the Low speed needle ? thx
X Conspiracy of One HPISF Staff HPISF Supporter Messages 3,384 Location Minnesota Jan 30, 2009 #2 Check your idle screw. Take off the air intake and look down into the carb. When closed you should have about 1mm of space between the slide and the side of the carb. If thats the case then yes you could be running to rich or possibly lean.
Check your idle screw. Take off the air intake and look down into the carb. When closed you should have about 1mm of space between the slide and the side of the carb. If thats the case then yes you could be running to rich or possibly lean.
Jeremy Well-Known Member Messages 4,389 Location tacoma wa Jan 30, 2009 #3 Nitro engines aren't suppose to idle too long flue gets built up in the crankcase .. Just blip the throttle some .. Clear it out
Nitro engines aren't suppose to idle too long flue gets built up in the crankcase .. Just blip the throttle some .. Clear it out