Look closely at the unit as i i have looked at pics of it on the net and it seems there might be some sort of adjust ment on ther for 50/50 70/30, but if there is none then do some adjustments on the linkages with your rx and tx on but not your engine and you should be able to set up the throttle just remove your air filter so you can see your movement in your carb and remember to put the filter after you have adjustments finished