1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 28Get this manual
MAINTENANCEfTUNE UP Electrical Battery Installation
WARNING
Always connect battery cables in the order specifiedRed (positive) cable first, black (negative) cable lastInstall battery in its holderInstall battery vent tubeIt must be free from kinks, obstructions, or restrictions and securely installedIf not, battery gases could accumulate and cause an explosionAvoid skin contact with electrolyte, severe burns could resultApply Nyogel
Top View of Battery
grease to each cable bolt
Vent Tube
First, connect and tighten red (positive) cableSecond, connect and tighten black (negative) cableApply dielectric grease to each cable end and to terminal post area