If you can adj to .7v. The afm is ok. If afm no good. You can not adj to that volt at all. If you have 500rpm in gear. Engine not stall. ok. Time to fine tune the system. Check the duty cycle at 2000 rpm adj to 30%to40% from eha. re set idle duty cycle to 50% +- 5%. You need set the system to engine cond. You put new part in older engine. Some time you need to fine tune it. When I change the leaking eha on my wife. Engine run rough till I fine tune eha and idle co.