car starting

[RyanC]

right when i go to start my g40 up it starts fine but the starter sounds like it is turning slowly, then i let it walm up for a bit turn it off then if i go to start it again it dosnt start. The starter turns but really slow again, if i jump it of another car it will start. Ive tryed battery so it cant be that ive put the earth part of the jump lead from battery to engine still the same. so then if i let the car cool down again then go to start it, it starts but the starter is really sluggish like it dosnt want to start but it dose after about 1-2 turns, i hope someone can help me thanks

[N1CKY]

Earth strap, Make sure they are both on and clean. Had it on 2 cars now. Ones above the gearbox and the other is on the altanator bracket, Also make sure there is one from the battery onto the inner wing.

[RyanC]

Ok ill give that ago tomoz thanks