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with a left-handed spark plug wench...hehe, then you gotta putt'em in with a right-handed spark plug wench
Right down the center of the Kia is where the plus and ignition cylenders are. There are 2 ignitions. Remove the center panel right on top of the kia. Then remove the two ignitios in the holes below the cylenders you will find the plugs. Yoe will need an extension to get them out!
Turn it counter-clockwise
Disconnect the battery cables, remove the spark plug cables and covers, and remove the old spark plugs. Next, put in the new spark plugs, attach the covers and spark plug cables and reconnect the battery cables.
remove the coil packs then the spark plugs dont just drop the plugs when installing this will damage the electrode
Replacing spark plugs is pretty simple. Disconnect the battery, remove the cover and cables, remove the old spark plugs, put in the new spark plugs, put the cover and wires back on the spark plugs, and reconnect the battery.
The '99 Sportster uses three quarts of engine oil, and one quart of Sport-Trans in the Primary/Transmission.
the trans and primary fluid on a sportster are the same (1 qt sport trans) look for the drain under the derby cover.
1 quart of sport lube
2.3 US Gallons (or so).
As far as the sport center from city sport
HD makes a weight of oil they call "Sport-Trans" that is made for use in the Sportster primary. Or, you can use any 30W non-detergent oil.