AC clutch not engaging, tried adding r134a
So I was going to add recharge my ac system, but when i went to do this I noticed the ac clutch was not engaging at all. So thinking the pressure was too low for it to engage, i added some r134a then it engaged for half a second then disengaged. when it did this the rpms fluctuated so i stopped adding refrigerant and turned off the truck. I am not very experienced in this area and only know what i do from what we briefly talked about in auto class, any help is appreciated. Also when I stopped it was at about 35 psi on the low side and was 80* outside, if that matters.
1997 Ford Ranger XLT 4.0L V6
1984 Yamaha YTM200E Tri-Moto
1971/1972? Rupp Roadster 2