About adjustment valve O.S. 91 HZ-R

[Scorpions]

Hi all:

some people said me the adjustment the engine o.s. 91HZ-R the high-speed valve and medium-speed valve.some said the high-speed is 1.5 turn and the mid-speed 3/4 turn.someone explain about this adjustment.i need some feedback.What is the recomendation.


THANKS

[diggin4grouper]

if you will give me a little while ill find the info you need , i have forgot were to get it from and have to look for it again

[diggin4grouper]

ok factory settings are as follows

initial setting from factoy
main needle 2 1/2 turns from fully closed
med speed needle is 1 turn from fully closed

when starting you have to prime the pressure system by putting the starter on the heli untill fuel is in regulator

open throttle fully and put the starter in place and turn the motor over for 3 to 5 secs and it should be good to go dont forget to close the throttle .

now you are going to fly the model and check to see if it running rich , its helpful if you are flying in idle up mode , close the main needle gradually till you feel the heli is running at its best ,

now that you have the main needle set you need to set the med speed needle , you are going to hover the heli wait 3 sec to determine if the mix is lean or rich , adjust till you feel that its stable in a hover

and be sure you take all the fuel out of the regulator when done flying or it will give you problems down the road

hope thats what you were looking for and that it helps