Oil Leak '99 FLSTF

Question for Fix My HogI have an oil leak high on motor where the oil is spraying back on my air cleaner cover and oil tank. Any suggestions?

Fix My Hog AnswersHello Jay,

I would check the front rocker box area. Clean the m/c very well and test ride checking for the source every couple miles sometimes a little white foot spray powder can be a huge help. Also check closely the breathers going into the a/c. Wrench Safe, FMH

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5 Responses to “Oil Leak '99 FLSTF”

  1. ROBERT

    My friend has a similar problem on his FatBoy but .... the oil is "leaking" directly from cylinder head by brearther tubes into the air fitler (and then out from the filter cover) and also through the filer cup of motor oil tank !

  2. j r

    I have a 99 fatboy had same problem its your bottom rockerbox gaskets use cometic gaskets that's what fixed mine.

  3. Edgewalker

    Same thing has happened to me when I filled the oil bag too full.

  4. John

    Is it doing it after about 20 min of ride time? After close to 1000.00 in different shop cost. I found out mine was a 5.95 oil pressure release spring that went bad.

  5. Don

    I just replaced the rocker box gaskets on my 99' Fatboy. Oil was spraying exactly as you mentioned. Be sure to replace the lower gaskets under the rockers. Mine were paper thin and hard and fell apart when I removed the rockers. Use some type of tacky gasket goo to hold the rubber gaskets in the grooves under the covers and good luck with the rear upper cover!