i am havind a problem with the midrange o nmy ys 110. it is constantly rich the couple of times i did get it set good the power was awsome. but it just wont keep a setting consistently ive checked everything as far as lines the tank and all that ive tried the byrons 30% heli and the red max 15% no different. i dontk now if this helps but when i go from full throttle to half throttle its fine it only happens when i go from low to half throttle

thanks kevin

go to www.ysperformance.com and follow the instructions.

thanks dave ill try that this week sometime i hoppe it works. i bought this motor used here and have had nothing but trouble with it. on the first two attempts to run the motor most of the bolts on the back of the motor came loose but the few times i did have it running right the motor is insane o nthe plane
one morething the valve setting is it .004-1mm or .003 in
thanks kevin

That's why I advise never buying used engines unless you know what you're getting into.

hey dave thanks for all the help i got it ot the field today and the motor ran absolutley perfect for me for 5 flights. im runnimg it on 15% right now and will go to 20 when my lhs gets there order in
thanks kevin

It will run better on the 20%. Glad you got it sorted out.

Good Flying!