Beaver throttle problem
We have a 1991 Beaver Marques with a 3176 Cat and a HT-747, 4 speed transmission. We tow a 2002 Suzuki Grand Vitara. My question is, does anyone know anything about the air control throttle system? There seems to be a slight delay after you push down on the throttle and when the motor responds. Is this normal?, we have had this coach for about 4 years and really like it, we put about 10,000 miles on it per year, it has 90,000 or so. Also sometime when I start it up cold, it will start and run at about 1,000 RPM for about 30 or 40 seconds, then drop to 600 and sometimes it starts at about 600 RPM, also sometimes when I Start it up, I have no throttle for anywhere from 2 or 3 seconds to 10 seconds. I really havent been to concerned with all this sence the motor is plenty strong and we get between 9 and 10 MPG and has never used any oil between oil changes (usually around 3,500 miles). Ive never actually talked to anyone who owns one to compare notes, apparently there are not to many around. This is the first forum Ive been on so I'm interested to see if I get any response, thanks in advance. Also I hope I'm doing this forum thing right. We live in NW Washington state.
Mike & Janet