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How to Change the Oil in a 1999 Harley Davidson Evolution Engine.
Step one: Drain the oil.
In this first picture you can see the drain for the oil on my Evo Engine is a rubber hose that hangs down on the rear part of the Engine. To drain the oil get out a screwdriver and loosen the hose clamp around the plug at the end of the hose. Before I do this I bend the hose support a bit, and move the hose out the back and down so that the hose can easily drain into the drain pan and not all over the frame of the bike.
This picture show the drain plug as it sits on the rear side on my Engine. The hose clamp is easy to remove and then the silver plug slides right out.
This show how I pulled the hose below the frame just a tiny bit and let the oil drain. on top of the yellow oil container is the plug and the hose clamp I removed.
Now make sure you remove the oil filler plug. This will allow air to get into the oil tanks so the oil can flow out the bottom of the engine into the drain pan.
The oil filler cap is on top of the Oil bag. pull it out and clean it off and set is someplace it will not get dirty. Be careful to keep dirt and other junk out of the oil tank while the plug is removed.
Step Two: Remove the oil filter.
The oil filter is on the front lower section of the Engine. It is easy to get to and easy to remove with the correct tools. You will need a small oil filter wrench, or a very large pair of pliers. The best option is to get the proper oil filter wrench and wrap it around the oil filter and slowly and gently turn the wrench counter clock wise to remove. Its is the standard right to tight, lefty loosy threading. In a pinch you can use a big set of pliers to grab the filter and crush it and remove it. (Note the very last option is to punch a screwdriver through the filter and twist it off using the screwdriver and a wrench.) Like I said the best option is to just get the proper tool.
This picture show the chrome filter on the front of my bike. The filter is tucked between the frame and the engine.
Once the Oil filter is removed you will need to clean the threads and the area on the engine that mounts the oil filter. Be very careful to keep this area clean and keep any and all dirt out of the engine. This area of the bike tends to build up oil, sand, rocks, dirt, and grime. Keeping this junk out of the engine is important. Don't spray or hose this area off with the oil filter removed.
When you take the oil filter off you will see the exposed threads of the mounting bracket. Get a clean cloth and clean the oil off the mounting surface of the bracket and remove and extra oil the is here.
Step Three: Install a new Oil Filter.
Get you new oil filter and before you install is get some clean oil and spread it around on the rubber gasket. You can even put a little bit of oil into the filter. This primes is so when the bike starts is has oil in it versus, needing to pump the oil from the oil tank and the engine running for a few cycle without oil. On my Diesel Truck when changing the filter I completely fill the filter with oil before installing it. Once you have placed oil on the rubber gasket, slowly thread the oil filter on to the threads on the engine. Be careful not to cross thread the filter on the threads. Once the Oil filter snugs up to the engine using only your hands tighten the filter about 1/4th of a turn more. This is about as tight as you can twist the filter on using only your hands. Do not get out your oil filter wrench just use your hands.
This picture show the bottom of the oil filter. This is an oil filter for a Jeep, but you get the idea and all oil filters are basically the same.
Step Four: Install the drain plug.
Now all of the oil has been drained out you need to put the drain plug back in. To do this get the hose clamp and slide it over the hose, then get the drain plug and slid it into the drain hose. It will slip back into place. Once the plug is in place slide the hose clamp over the top of the drain plug. you want to make sure the screw is line up so it is easy to get to tighten it up. Once in place hold it with one hand and tighten the hose clamp. Not too tight just nice and snug and the oil will not leak. If you put to much pressure in this hose clamp it will cut into the hose.
Step Five: Add new oil.
Like I said I use Harley Davidson Oil, and I am not a fanatic of synthetic, but you can certainly use any oil you think will protect your engine.
This is the 20W50 oil I use in my bikes. If you live in a really cold environment or a really hot area, you may want to consider a different weight of oil. This 20 weight 50 motor oil works pretty well for me.
The EVO motor when changing the oil and filter takes 3 quarts of oil. It is simple to add the new oil, just remove the cap and pour it into the oil tank.
Easy enough. You are almost done.
Just put the oil can in and let it all drain into the oil tank.
Once the oil has been added to the oil tank you can check the oil level. On the oil filler cap are two notches. If the oil is below the lower notch you are really low.
One other note about starting your bike after and oil change, Make sure you put the oil tank cap on before turning over the engine. If you leave if off the air coming back from the engine will blow oil all over the place, believe me I learned this the hard was once.
When you first turn over the engine do it slowly and let the bike idle, don't start it and rev it up let the engine lubricate all the pieces and parts before you rev it. This only takes a few seconds, but being careful here will certainly not hurt you.
Step Six: Cleanup.
Be sure to recycle your used motor oil. Any and All modern parts stores like Autozone, Checker, or Napa will take your used oil and put it in the recycle bin for free. Don't do anything silly like put it in the garbage or pour it out back.