Anyone got a positive battery cable for an 81 to 84 900? This is the one for the starter that's under the exhaust manifold. Thanks.

I recommend going to your local Airgas welding supply store and buying some welding cable. You can get it in 2 gage or 4 gage and usually you can buy the connectors and crimping tool. pricing is very reasonable and the cable you make will be impressively better than a stock replacement.