If you must use a mirror to see the underside. Grab a propane torch, bottle of penetrating spray oil (such as WD-40,) or even a squirt bottle with water in it. I have a 2003 road king police model with fule injection. Oil drain plugs leak when they are not tight. Back To Topics. percy April 22, 2011 8:25 AM PDT . Relevance. For the propane, turn the torch on but don’t actually light it. I have got a very small oil leak on my 2007 Road King that is driving me crazy. There are … Bad oil plugs are another culprit responsible for oil leaks on motorcycles, such as Harleys. After few hour, a NEW leak will be evident. If there's no leak, at least your engine is clean. This mismatch causes excess oil to be removed from the exhaust. Method 2 of 2: Finding the source of an oil leak using a UV dye and UV flashlight. or is there a another way to stop the leaks . If you really have a difficult time figure out, try putting some FOOT powder over the SURFACE of the bike where you suspect a leak. Vibrations on the motorcycle can cause the oil drain plug to come loose, leading to oil leaks. KZ1000 oil leak. In our case, the path started at the oil … You will need to undertake a thorough inspection of the vehicle to locate the precise source of the leak. ? Because leaking oil may follow a twisty path, look for the highest point of any oil trace, and that should lead you to the source. Just went out and checked Now at 8, 2 hours later, no oil or gas under it or leaking. 11 Answers. On motorcycles, everything is exposed to it should be easier to see. The easiest way to find an oil leak is to clean the engine up really well with degreaser and a toothbrush and ride the bike for a while. Then apply the gas or liquid in areas you might find a leak. Recently Added Motorcycle Events; Follow CycleFish on Facebook; Motorcycle Forums » Harley Davidson. Keep an eye on it after each ride and look for wetness. For some motorcycles, this will be easier to achieve with the help of a jack stand.Finding the point from which the motorcycle engine oil is leaking will help you to determine what method to use to repair it as well as the severity of the problem. Often, it may not be obvious where an oil leak is coming from, but with a little bit of effort you may be able to find the source of an oil leak and take appropriate action. I rode it for a day and nothing. After I ride it a few times the drip is back … Side crankcase plugs and valve cover plugs can also be a source of leaks on your Harley motorcycle. Help small oil leak. paul. It only drips a few drops overnight on the garage floor, but it is annoying and I am trying my hardest to find it. Went out an hour later, and there's a small patch of oil under it and wet clear liquid dripping along with fumes coming out. Answer Save. Generally, the percentage thereof should be 2% but it is best that you consult the manual of your bike to check. 5 months ago. For finding the leak itself, start your motorcycle up and leave it idling. Anyways, take a 2 and 1/2 hr ride from 3:30-6, park it. There are some instances when the powder method can be inconclusive, or the leak is coming from a place where powder cannot be properly applied, such as in tight crevices behind the engine. Kawasaki Motorcycle Forums. The most common cause of motorbikes leaking oil from the exhaust is that there is a greater proportion of this fluid recommended for gasoline blending. Does anybody know the best method to find an oil leak on a motorcycle? Vintage Motorcyle Info. Step 2 - Inspection. ... question for u i have a 82 kz1000 i have a oil leak under the sparket cover i think it coming out the drive shift or the clutch shift can u change the seals whit out removing the motor? 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