83-84 Four trax power issue

My fourwheeler does not seem to have much power. Starts fine other than the recent dead battery. First and second give me decent power but as I am going down a road I lose speed slowly trickles off to a point. I don’t remember if it really every had alot of power when I bought it but it seems that it should have enough power to allow me(250lbs) and a 60lbs person child to ride together. I plan to do some poking around on it tomorrow but would like some things to look at or start with.

83-84 Four trax power issue

My fourwheeler does not seem to have much power. Starts fine other than the recent dead battery. First and second give me decent power but as I am going down a road I lose speed slowly trickles off to a point. I don’t remember if it really every had alot of power when I bought it but it seems that it should have enough power to allow me(250lbs) and a 60lbs person child to ride together. I plan to do some poking around on it tomorrow but would like some things to look at or start with.