Well shut my mouth!
Fred:Sorry about that! I was in the ozone. I was thinking shifting while you were throttling. Bob is right. I doubt that you have one of these "J-clamps", but you may have a crusher on yours. If you look at the pictures in the photo forum that I posted, I think I have pictures of my old crusher in there. They are just two pieces of metal with a couple of bolts that you use to "Crush" the cable housing down on the cable. If you have one, it is probably down near the engine. Remove it and see if that doesn't help. If it takes care of the problem, you now probably have a new problem "throttle creep". You can just get a "J-clamp" and try that. I would recommend that you do not put it where the crusher was. Move it ahead or behind the old location.I do not think that there is any inherent problem with these throttles. This engine is basically identical to the 2GM20 but another cylinder.PS: Thanks Bob (I'm going back to sleep)