Jetting help

[gizmoman]

Ok so i'm trying to get the serval dialed so it can actually run right. mods are in my sig, i'm running the needle on the 4th clip,52 pilot, airscrew 1/2 turn out, 160main the temps are around 30-50F. So to my problem when idling it loads up and has a low end bog and i have to work the throttle to get the revs up (thats with the airscrew at 1/4 and 1/2) at 1 to 1.5 turns out it idles high but doesn't load up on idle but the bogging moves up to the mid range and sounds crappy when you hit the powerband. Any suggestions? was running a 50 pilot before and same problem

[252wheelieking]

Ok so i'm trying to get the serval dialed so it can actually run right. mods are in my sig, i'm running the needle on the 4th clip,52 pilot, airscrew 1/2 turn out, 160main the temps are around 30-50F. So to my problem when idling it loads up and has a low end bog and i have to work the throttle to get the revs up (thats with the airscrew at 1/4 and 1/2) at 1 to 1.5 turns out it idles high but doesn't load up on idle but the bogging moves up to the mid range and sounds crappy when you hit the powerband. Any suggestions? was running a 50 pilot before and same problem

 

Leave the air/fuel screw 1 turn out with the 52 pilots, put the needle clip in the middle will riching the 1/4 - 3/4 throttle & see what you get from there.

Hope this helps.

[AZ Duner]

I just built a serval, and it's doing the exact same thing. I have tried everything known to man to get it to straighten out including taring it down to examine for air leaks. No luck. I run vf3 reeds 35 pwks with pilot at 48, main at 148, and cel needle in the middle. Per Trinity( I know I know) I have tried different combos and it just loads up. I am at 6500 feet, but run almost exclussively at Glamis. I have tried timing, different fuels, I am at my wits end any help would be appreciated. Trinity says air leak, but it has been leak down tested 3 times and never fails.