Hi everyone. I have some questions and hope you all can help. I am not new to rotary but it has been a while sinci I have had one. I have an 87 gxl. It is hard to start and when it warms up and you take it to 6 on the tac. It just starts going up and down. even if you hold it to the floor it just revs and falls off. I cant figure this one out.

Sorry if I havent explained it well, But any help would be great.